パソコン Intel IXP42Xの取扱説明書

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Order Number: 252 480-006US Intel ® IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor Developer’s Manual September 2006.

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 2 Order Number: 252480-006US Legal Lines and Discla ime rs INFORMA TION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH IN TEL® PRODUCTS.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 3 —Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Pr ocessor Contents 1.0 Introduction .

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Intel ® IXP42X Product Line of Network Proce ssors and IXC1100 Control Plane Processor— Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 4 Order Number: 252480-006US 3.4 Data Cache ........

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 5 —Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Pr ocessor 3.6.11.2 SELDCSR JTAG Re gister .

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Intel ® IXP42X Product Line of Network Proce ssors and IXC1100 Control Plane Processor— Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 6 Order Number: 252480-006US 3.9.1 Interru pt Latency .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 7 —Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Pr ocessor 6.3 Initializing PCI Controller Configuration and Status Registers for Data Transactions .

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Intel ® IXP42X Product Line of Network Proce ssors and IXC1100 Control Plane Processor— Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 8 Order Number: 252480-006US 6.14.2.1 1DMA Control Reg ister .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 9 —Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Pr ocessor 8.9 Register Descriptions .

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Intel ® IXP42X Product Line of Network Proce ssors and IXC1100 Control Plane Processor— Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 10 Order Number: 252480-006US 11.2.1 Monitored Events So uth AHB and North AHB .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 11 —Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Pr ocessor 14.4.9 Timer Status...

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Intel ® IXP42X Product Line of Network Proce ssors and IXC1100 Control Plane Processor— Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 12 Order Number: 252480-006US 15.2.45 Unicast Address 6 .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 13 —Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Pr ocessor 18.5.2.5 Sent Stall (SST).

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Intel ® IXP42X Product Line of Network Proce ssors and IXC1100 Control Plane Processor— Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 14 Order Number: 252480-006US 18.5.9.1 Receive FIFO Service (RFS) .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 15 —Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Pr ocessor 18.5.15.6 B it 5 Reserv ed .

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Intel ® IXP42X Product Line of Network Proce ssors and IXC1100 Control Plane Processor— Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 16 Order Number: 252480-006US 18.5.27. 1 Endpoint 9 Byte Count (BC[7:0]) .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 17 —Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Pr ocessor 21.3 Functional Descriptio n .

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Intel ® IXP42X Product Line of Network Proce ssors and IXC1100 Control Plane Processor— Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 18 Order Number: 252480-006US 35 Initiated PCI TYPE 0 Configuration Read Cycle .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 19 —Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Pr ocessor 86 T1 Transmit Frame .

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Intel ® IXP42X Product Line of Network Proce ssors and IXC1100 Control Plane Processor— Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 20 Order Number: 252480-006US 38 TX RX Control Re gister (TXRXCTRL) .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 21 —Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Pr ocessor 93 Pipelines and P ipe Stages .

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Intel ® IXP42X Product Line of Network Proce ssors and IXC1100 Control Plane Processor— Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 22 Order Number: 252480-006US 148 Processors’ with Etherne t Interface .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 23 —Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Pr ocessor Revision History Date Revision Description September 2006 006 1.

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Intel ® IXP42X Product Line of Network Proce ssors and IXC1100 Control Plane Processor— Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 2.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 25 —Intel ® IXP42X Product Line of Network Proces sors and IXC1.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Introduction Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 26 Order Number: 252480-006US 1.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 27 Introduction—Intel ® IXP42X product line and IXC1100 control pla ne processors 1.3.2 A cronyms an d Terminology Table 1.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Introduction Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 28 Order N.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 29 Introduction—Intel ® IXP42X product line and IXC1100 control.

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Intel ® IXP42X product line and IXC1100 control plane processors—Overview of Product Line Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 30 Order Number: 252480-006US 2.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 31 Overview of Product Line—Intel ® IXP42X produc t line and IXC1100 control plane processors Figure 1.

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Intel ® IXP42X product line and IXC1100 control plane processors—Overview of Product Line Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 32 Order Number: 252480-006US Figure 2.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 33 Overview of Product Line—Intel ® IXP42X produc t line and IXC1100 control plane processors Figure 3.

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Intel ® IXP42X product line and IXC1100 control plane processors—Overview of Product Line Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 34 Order Number: 252480-006US Figure 4.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 35 Overview of Product Line—Intel ® IXP42X produc t line and IXC1100 control plane processors 2.

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Intel ® IXP42X product line and IXC1100 control plane processors—Overview of Product Line Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 37 Overview of Product Line—Intel ® IXP42X produc t line and IXC1100 control plane processors 2.

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Intel ® IXP42X product line and IXC1100 control plane processors—Overview of Product Line Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 38 Order Number: 252480-006US 2.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 39 Overview of Product Line—Intel ® IXP42X produc t line and IXC1100 control plane processors 2.

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Intel ® IXP42X product line and IXC1100 control plane processors—Overview of Product Line Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 40 Order Number: 252480-006US communicated to the NPEs via the flag bus.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 41 Overview of Product Line—Intel ® IXP42X produc t line and IXC1100 control plane processors The memory controller only supports 32-bit me mory .

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Intel ® IXP42X product line and IXC1100 control plane processors—Overview of Product Line Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 42 Order Number: 252480-006US 2.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 43 Overview of Product Line—Intel ® IXP42X produc t line and IXC1100 control plane processors For m ore information on the timers, see Section 14.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 44 Order Number: 252480-006US 3.0 Intel XScale ® Processor This chapter provides functional descriptions of th e Intel XScale ® Processor.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 45 Intel XScale ® Processor—Intel ® IXP42X product li ne and I.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 46 Order Number: 252480-006US 3.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 47 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 48 Order Number: 252480-006US 3.1.3 MMU Control 3.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 49 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.1.3.3 Locking Entries Individual entries can be locked into th e instruction and data TLBs.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 0.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 51 Intel XScale ® Processor—Intel ® IXP42X product li ne and I.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 52 Order Number: 252480-006US Only entries 0 through 30 can be locked in ei ther TLB; entry 31can never be locked.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 53 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors A fetched line will be written into the cache if it is cacheable.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 54 Order Number: 252480-006US • A fetch buffer is allocated • The instruction cache sends a fetch request to the external bus.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 55 Intel XScale ® Processor—Intel ® IXP42X product li ne and I.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 56 Order Number: 252480-006US The entire instruction cache along with the fetch buffers are invalidated by writing to coprocessor 15, register 7.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 57 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors As a result: no fetches of cacheable code should occur while locking instructions into the cache.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 58 Order Number: 252480-006US The Intel XScale processor provides a global unlock command for the instruction cache.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 59 Intel XScale ® Processor—Intel ® IXP42X product li ne and I.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 0.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 61 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors a cacheable write miss when write allocate is specified by its page attribute.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 62 Order Number: 252480-006US The Intel XScale processor employs an eight entry write buffer , each entry containing 16 bytes.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 63 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors caching is specified for that area of memory .

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 0.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 65 Intel XScale ® Processor—Intel ® IXP42X product li ne and I.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 66 Order Number: 252480-006US A simple software routine is used to globally clean the data cache.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 67 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors Example 9.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 0.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 69 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors Example 10.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 70 Order Number: 252480-006US Example 11.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 71 Intel XScale ® Processor—Intel ® IXP42X product li ne and I.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 0.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 73 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors All reads and writes to external memory o ccur in progr am order when coalescing is disabled in the write buffer .

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 74 Order Number: 252480-006US Unless otherwise noted, unused bits in coprocessor registers have unpredictable v alues when read.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 75 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 76 Order Number: 252480-006US 3.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 77 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 0.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 79 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.5.1.3 Register 2: Translation Table Base Register Table 13.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 80 Order Number: 252480-006US 3.5.1.4 Register 3: Do main Access Control Register 3.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 81 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.5.1.7 Register 6 : Fault Address Register 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 82 Order Number: 252480-006US The line-allocate command allocates a tag into the data cache specified by bits [31:5] of Rd.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 83 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors Ta b l e 2 0 shows the command for locking down entries in the instruction and data cache.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 84 Order Number: 252480-006US 3.5.1.12 Register 11-1 2: Reserved These registers are reserve d.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 85 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 86 Order Number: 252480-006US Example 12. Disallowing access to CP0 3.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 87 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 88 Order Number: 252480-006US 3.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 89 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors • Debug Handler SW re quirements and sugge stions 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 90 Order Number: 252480-006US 3.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 91 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 92 Order Number: 252480-006US 3.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 93 Intel XScale ® Processor—Intel ® IXP42X product li ne and I.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 0.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 95 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors • Instruction breakpoint • BKPT instruction The processor ignores vector traps during monitor mode.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 0.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 97 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors When DBR1 is progr ammed as a data address mask, it is used in conjunction with the address in DBR0.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 0.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 99 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.6.8.1 RX Register Ready Bit (RR) The debugger and debug handler use the RR bit to synchronize accesses to RX.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 100 Order Number: 252480-006US 3.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 103 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 104 Order Number: 252480-006US 3.6.11.2.1 DBG.H LD_RST The debugger uses DBG.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 106 Order Number: 252480-006US A Capture_DR loads the TX register value into DBG_SR[34:3] and TXRXCTRL[28] into DBG_SR[0].

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 107 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors The captured data is scanned out during the Shift_DR state.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 108 Order Number: 252480-006US 3.6.11.6.3 DBG.RR The debugger uses DBG.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 109 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.6.11.6.5 DBG.RX DBG.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 110 Order Number: 252480-006US Any access to the tr ace buffer registers in User mode will cause an undefined instruction exception.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 111 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.6.12.1.2 Trace Buffer Register (TBREG) The trace buffer is read thr ough TBREG, using MRC and MCR.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 112 Order Number: 252480-006US 3.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 113 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors of the instruction not matching the CC flags.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 114 Order Number: 252480-006US 3.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 115 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors The trace buffer must be initialized prior to its initial usage, then again prior to each subsequent usage.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 116 Order Number: 252480-006US 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 118 Order Number: 252480-006US 3.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 119 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors All pack ets are 33 bits in length.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 121 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 2.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 122 Order Number: 252480-006US As shown in Figure 27 , reset does not inv alidate the instruction cache because of the processor is in Halt Mode.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 123 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 124 Order Number: 252480-006US that line. F ailure to invalidate a line prior to writing it may cause unpredictable operation by the processor .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 125 Intel XScale ® Processor—Intel ® IXP42X product li ne and .

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 126 Order Number: 252480-006US Another possibility is for a more complete de bug handler is downloaded during reset.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 127 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors While the processor is still in reset, the debu gger should set up the DCSR to trap the reset vector .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 129 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 0.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 131 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors The download bit acts as a br anch flag, signalling to the handler to continue with the download.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 132 Order Number: 252480-006US These actions ensure that the application progr am executes correctly after the debugger has been disconnected.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 134 Order Number: 252480-006US 3.7.2 Register Description 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 136 Order Number: 252480-006US 3.7.2.4 Interrupt Enable Register (INTEN) Each counter can generate an interrupt request when it ov erflows.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 139 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.7.4 Performance Monitoring Events Ta b l e 6 0 lists events that may be monitored.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 142 Order Number: 252480-006US • T otal number of data write-back re quests to external memory can be derived solely with PMN1.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 143 Intel XScale ® Processor—Intel ® IXP42X product li ne and .

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 144 Order Number: 252480-006US In the contrived example above, the instru ction cache had a miss-rate of 5% and CPI was 2.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 147 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors T wo new fields were created for this format, acc and opcode_3 .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 149 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors The MIAxy instruction performs one16-bit signed multiply and accumulates these to a single 40-bit accumulator .

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 152 Order Number: 252480-006US This instruction executes in any processor mode.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 153 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors The TEX (T ype Extension) field is present in sever al of the descriptor types.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 154 Order Number: 252480-006US When setting multiple CP15 registers, system software may opt to delay the assurance of their update.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 156 Order Number: 252480-006US 3.8.3.4.4 Data Ab orts T wo types of data aborts exist in the Intel XScale processor: precise and imprecise.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 158 Order Number: 252480-006US If a system design precludes events that could cause external abo rts, then such precautions are not necessary .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 159 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.8.3.4.6 Debug Events Debug ev ents are cov ered in “Debug Ex ceptions” on page 92 .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 175 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.10.3.1.2 Optimizing Branches Branches decrease application performance by indirectly causing pipeline stalls.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 185 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.10.4.3.2 Memory Page Thrashing Memory page thrashing occurs because of th e nature of SDRAM.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 187 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors In the above code, data is read from both arr ays a and b, but a and b are not spatially close.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 189 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors Unfortunately , prefetch loop unrolling does not work on loops with indeterminate iterations.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 194 Order Number: 252480-006US sequentially should not exceed four .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 195 Intel XScale ® Processor—Intel ® IXP42X product li ne and IXC1100 control plane p rocessors 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 0.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 197 Intel XScale ® Processor—Intel ® IXP42X product li ne and .

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 198 Order Number: 252480-006US The MAR ( MCRR ) instruction has an iss ue latency , a result latency , and a resource latency of two cycles.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 199 Intel XScale ® Processor—Intel ® IXP42X product li ne and .

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—Intel XScale ® Processor Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 200 Order Number: 252480-006US 3.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 201 Intel XScale ® Processor—Intel ® IXP42X product li ne and .

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Intel ® IXP42X product line and IXC1100 contro l pl ane processors—Network Processor Engi nes (NPE) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 202 Order Number: 252480-006US 4.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 203 Network Processor Engines (NPE)—Intel ® IXP42X product line and IXC1100 control plane processors are difficult for a processor to implement.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Internal Bus Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 204 Order Number: 252480-006US 5.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 205 Internal Bus—Intel ® IXP42X product line and IXC1100 control plane processors The arbiters also have the capability to handle split tr ansfers.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Internal Bus Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 206 Order Number: 252480-006US Table 96.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 207 Internal Bus—Intel ® IXP42X product line and IXC1100 contro.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 208 Order Number: 252480-006US 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 209 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s Figure 30. Processors’ PCI Bus Configured as a Host Figure 31.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 210 Order Number: 252480-006US The IXP42X product line and IXC1100 control plane processors PCI Controller block diagram is giv en in Figure 32 .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 211 PCI Cont roller— Intel ® IXP42X product line and IXC1100 co.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 212 Order Number: 252480-006US pre-fetch CSR mechanism. R e fer to “PCI C ontroller Configured as Host” on page 213 for additional details.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 213 PCI Cont roller— Intel ® IXP42X product line and IXC1100 co.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 214 Orde.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 215 PCI Cont roller— Intel ® IXP42X product line and IXC1100 co.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 216 Orde.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 217 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s memory transactions with no adverse side effects to reads.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 218 Order Number: 252480-006US 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 219 PCI Cont roller— Intel ® IXP42X product line and IXC1100 co.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 220 Order Number: 252480-006US processors.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 221 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s — BAR4 = 0xA 4000 000 — BAR5 = 0xA 5123 400 3.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 222 Orde.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 223 PCI Cont roller— Intel ® IXP42X product line and IXC1100 co.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 224 Order Number: 252480-006US 1. An AHB master that wants to write a particular PCI Configuration Register w rites PCI_CRP_AD_CBE register first.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 225 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 226 Order Number: 252480-006US T arge t Interface is used to accept transaction request from other AHB Masters.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 227 PCI Cont roller— Intel ® IXP42X product line and IXC1100 co.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 228 Order Number: 252480-006US 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 229 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 230 Order Number: 252480-006US 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 231 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 232 Order Number: 252480-006US implemented on the IXP42X product line an d IXC1100 control plane processors.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 233 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 234 Order Number: 252480-006US 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 235 PCI Cont roller— Intel ® IXP42X product line and IXC1100 co.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 236 Orde.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 237 PCI Cont roller— Intel ® IXP42X product line and IXC1100 co.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 238 Orde.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 239 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s PCI_PT ADM A0/1_LENGTH registers respectively .

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 240 Order Number: 252480-006US The PCI Door Bell R egister (PCI_PCIDOORBELL ) register can only be written by the AHB.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 241 PCI Cont roller— Intel ® IXP42X product line and IXC1100 co.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 242 Orde.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 243 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s Figure 47.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 244 Orde.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 245 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s Figure 49.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 246 Order Number: 252480-006US As described previously , during DMA transfer s the DS bit in the DMA length registers controls byte-lane routing.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 247 PCI Cont roller— Intel ® IXP42X product line and IXC1100 co.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 248 Order Number: 252480-006US 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 249 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 3. W ait 1ms to satisfy minimum reset assertion time of the PCI specification.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 250 Order Number: 252480-006US 6.14.1.1 Device ID/Vendor ID Register (PCI_DIDVID) 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 251 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s Register PCI_SRCR (Sheet 1 of 2) Bits Name Description Reset Value PCI Access AHB Access 31 DPE Detected Parity Error .

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 252 Order Number: 252480-006US 6.14.1.3 Class Code/Revision ID Register (PCI_CCRID) 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 253 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 254 Order Number: 252480-006US 6.14.1.6 Base Address 1 Register (PCI_BAR1) 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 255 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.14.1.8 Base Address 3 Register (PCI_BAR3) 6.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 256 Order Number: 252480-006US 6.14.1.10 B ase Address 5 Register (PCI_BAR5) 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 257 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.14.1.12 Max_Lat, Min_Gnt, Interrup t Pin, and Interrupt Line Register (PCI_LATINT) 6.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 258 Order Number: 252480-006US 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 259 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.14.2.1 PCI Controller No n- pre-fetch Address Register (PCI_NP_AD) 6.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 260 Order Number: 252480-006US 6.14.2.3 PC I Co ntroller Non-Pr e-fetch Write Data Register (PCI_NP_WDATA) 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 261 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 262 Order Number: 252480-006US 6.14.2.7 PCI Controller Configurat ion Port Read Data Register (PCI_CRP_RDATA) 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 263 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.14.2.9 PCI Controller Interrupt Status Register (PCI_ISR) 4A B E AHB big-endian addr essing.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 264 Order Number: 252480-006US 6.14.2.10 PCI Controller In terrupt Enable Register (PCI_INTEN) 2P P E PCI Parity Err or .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 265 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 266 Order Number: 252480-006US 6.14.2.12 AHB Memory Base Address Register (PCI_AHBMEMBASE) 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 267 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.14.2.14 PCI Memory Base Ad dress R egister (PCI_PCIMEMBASE) 6.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 268 Order Number: 252480-006US 6.14.2.16 PCI Doorbell Register (PCI_PCIDOORBELL) 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 269 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.14.2.18 AHB to PCI DMA PCI Address Register 0 (PCI_ATPDMA0_PCIADDR) 6.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 270 Order Number: 252480-006US 6.14.2.20 AH B to PCI DMA AHB Address Register 1 (PCI_ATP DMA1_AHB ADDR) 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 271 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.14.2.23 PCI to AHB DMA AHB Address R egister 0 (PCI_PTADMA0_AHBADDR ) 6.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 272 Order Number: 252480-006US 6.14.2.25 PC I to AHB DMA Length Register 0 (PCI_PTADMA0_LENGTH) 6.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 273 PCI Cont roller— Intel ® IXP42X product line and IXC1100 control plane processor s 6.14.2.27 PCI to AHB DMA PCI Address Register 1 (PCI_PTADMA1_PCIADDR) 6.

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Intel ® IXP42X product line and IXC1100 co ntrol plane processors—PCI Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 274 Order Number: 252480-006US § § 28 DS Data Swap indicator .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 275 PCI Cont roller— Intel ® IXP42X product line and IXC1100 co.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—SDRAM Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 276 Order Number: 252480-006US 7.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 277 SDRAM Controller—Intel ® IXP42X product line and IXC1100 co.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—SDRAM Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 278 Or.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 279 SDRAM Controller—Intel ® IXP42X product line and IXC1100 control plane proc essors After decoding is complete, the SDRAM Controller completes the read or write transaction to the SDRAM.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—SDRAM Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 280 Order Number: 252480-006US to-data delay will be initialized to two clocks.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 281 SDRAM Controller—Intel ® IXP42X product line and IXC1100 control plane proc essors An example of configuring the SDRAM Configur a tion (SDR_CONFIG) R egister is shown below: 1.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—SDRAM Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 282 Or.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 283 SDRAM Controller—Intel ® IXP42X product line and IXC1100 control plane proc essors 7.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—SDRAM Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 284 Or.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 285 SDRAM Controller—Intel ® IXP42X product line and IXC1100 control plane proc essors 7.3 SDRAM Memory Accesses 7.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—SDRAM Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 286 Order Number: 252480-006US 7.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 287 SDRAM Controller—Intel ® IXP42X product line and IXC1100 control plane proc essors 7.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—SDRAM Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 288 Order Number: 252480-006US 7.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 289 SDRAM Controller—Intel ® IXP42X product line and IXC1100 control plane proc essors A “set mode register ” command would write the following to the SDRAM.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—SDRAM Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 290 Order Number: 252480-006US These are the commands issued by the memo ry controller to the SDRAM and are not accessible through the AHB (i.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 291 SDRAM Controller—Intel ® IXP42X product line and IXC1100 co.

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Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 292 Order Number: 252480-006US 8.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 293 Expansion Bus Controller—Intel ® IXP42X product line and IX.

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Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 295 Expansion Bus Controller—Intel ® IXP42X product line and IX.

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Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 296 Order Number: 252480-006US Table 118.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 297 Expansion Bus Controller—Intel ® IXP42X product line and IXC1100 control plane processors 8.4 Expansion Bus Connecti ons Figure 60 shows a typical connection for various devices connected on the expansion bus.

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Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 298 Order Number: 252480-006US 8.

299ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 299 Expansion Bus Controller—Intel ® IXP42X product line and IX.

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Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 301 Expansion Bus Controller—Intel ® IXP42X product line and IX.

302ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 302 Order Number: 252480-006US The T4 (Hold Timing) period is the time interval in which Chip Select will be held after READ is deasserted.

303ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 303 Expansion Bus Controller—Intel ® IXP42X product line and IXC1100 control plane processors 8.

304ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 304 Order Number: 252480-006US The byte identification signal, EX_HBIL, is used to determine the byte transfer order .

305ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 305 Expansion Bus Controller—Intel ® IXP42X product line and IXC1100 control plane processors 8.8 Expansion Bus Interfac e Access Timing Diagrams 8.

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Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 306 Order Number: 252480-006US 8.8.2 Intel ® Multiplexed-Mode Read Access Figure 64.

307ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 307 Expansion Bus Controller—Intel ® IXP42X product line and IXC1100 control plane processors 8.8.3 Intel ® Simplex-Mode Write Acce ss Figure 65.

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Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 308 Order Number: 252480-006US 8.8.4 Intel ® Simplex-Mode Read Access Figure 66.

309ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 309 Expansion Bus Controller—Intel ® IXP42X product line and IXC1100 control plane processors 8.8.5 Motorola* Multiplexed-Mode Write Access Figure 67.

310ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 310 Order Number: 252480-006US 8.8.6 Motorola* Multiple xed-Mode Read Access Figure 68.

311ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 311 Expansion Bus Controller—Intel ® IXP42X product line and IXC1100 control plane processors 8.8.7 Motorola* Simple x-Mode Write Access Figure 69.

312ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 312 Order Number: 252480-006US 8.8.8 Motorola* Simplex-Mode Read Access Figure 70.

313ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 313 Expansion Bus Controller—Intel ® IXP42X product line and IXC1100 control plane processors 8.8.9 TI* HPI-8 Write Access Figure 71.

314ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 314 Order Number: 252480-006US 8.8.10 TI* HPI-8 Read Access Figure 72.

315ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 315 Expansion Bus Controller—Intel ® IXP42X product line and IXC1100 control plane processors 8.8.11 TI* HPI-16, Multip lexed-Mode Write Access Figure 73.

316ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 316 Order Number: 252480-006US 8.8.12 TI* HPI-16, Multiplexed-Mode Read Access Figure 74.

317ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 317 Expansion Bus Controller—Intel ® IXP42X product line and IXC1100 control plane processors 8.8.13 TI* HPI-16 Simplex-Mode Write Access Figure 75 .

318ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 318 Order Number: 252480-006US 8.8.14 TI* HPI-16 Simplex-Mode Read Access Figure 76.

319ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 319 Expansion Bus Controller—Intel ® IXP42X product line and IXC1100 control plane processors 8.9 Regi ster Descriptio ns 8.

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Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 320 Order Number: 252480-006US 8.9.3 Timing and Control Regi sters for Chip Select 2 8.

321ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 321 Expansion Bus Controller—Intel ® IXP42X product line and IXC1100 control plane processors 8.9.6 Timing and Control Registers for Chip Select 5 8.

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Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 322 Order Number: 252480-006US 8.

323ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 323 Expansion Bus Controller—Intel ® IXP42X product line and IXC1100 control plane processors These configuration bits are made av ailable to the system as outputs from the Expansion Bus Controller block.

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Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006.

325ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 325 Expansion Bus Controller—Intel ® IXP42X product line and IXC1100 control plane processors Only two bits in Configuration R egister 1 are currently defined.

326ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Expansion Bus Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 326 Order Number: 252480-006US 8.10 Expansion Bus Controller Per formance Ta b l e 1 2 7 shows simulated expansion bus throughput.

327ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 327 Expansion Bus Controller—Intel ® IXP42X product line and IX.

328ページ

Intel ® IXP42X product line and IXC1100 cont rol pl ane processors—AHB/APB Bridg e Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 328 Order Number: 252480-006US 9.0 AHB/APB Bridge The APB Bridge is used to connect the high-speed AHB to the lower-speed peripherals connected to the APB.

329ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 329 AHB/APB Bridge—I ntel ® IXP42X product line and IXC1100 control plane processors Figure 77.

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Intel ® IXP42X product line and IXC1100 cont rol pl ane processors—AHB/APB Bridg e Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 330 Order Number: 252480-006US § § Table 128.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 331 AHB/APB Bridge—I ntel ® IXP42X product line and IXC1100 con.

332ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 332 Order Number: 252480-006US 10.

333ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 333 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors 10.

334ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 334 Order Number: 252480-006US Figure 79.

335ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 335 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors 10.

336ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 336 Order Number: 252480-006US 10.

337ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 337 Universal Asynchronous Receiver Transceiver (UART)—Intel ® .

338ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 338 Order Number: 252480-006US The Line-Control Register is initialized to hexadecimal 0x00 after reset.

339ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 339 Universal Asynchronous Receiver Transceiver (UART)—Intel ® .

340ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Pr.

341ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 341 Universal Asynchronous Receiver Transceiver (UART)—Intel ® .

342ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 342 Order Number: 252480-006US Receive Interface.

343ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 343 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors The error flags position will remain consta nt, independent of the character size.

344ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Pr.

345ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 345 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors 10.

346ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 346 Order Number: 252480-006US 10.

347ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 347 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors 10.

348ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Pr.

349ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 349 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors 10.

350ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 350 Order Number: 252480-006US 10.

351ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 351 Universal Asynchronous Receiver Transceiver (UART)—Intel ® .

352ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 352 Order Number: 252480-006US 10.

353ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 353 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors 10.

354ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 354 Order Number: 252480-006US 10.

355ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 355 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors 10.

356ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 356 Order Number: 252480-006US 10.

357ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 357 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors 10.

358ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 358 Order Number: 252480-006US 10.

359ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 359 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors 10.

360ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 360 Order Number: 252480-006US 10.

361ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 361 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors Table 137.

362ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 362 Order Number: 252480-006US 10.

363ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 363 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors 10.

364ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Pr.

365ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 365 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors 10.

366ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 366 Order Number: 252480-006US 10.

367ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 367 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors 10.

368ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 368 Order Number: 252480-006US 10.

369ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 369 Universal Asynchronous Receiver Transceiver (UART)—Intel ® IXP42X product line and IXC1100 control plane processors 10.

370ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Universal Asynchronous Receiver Transceiver (UART) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Pr.

371ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 371 Universal Asynchronous Receiver Transceiver (UART)—Intel ® .

372ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Internal Bus Performance Monitoring Unit (IBPMU) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 372 Order Number: 252480-006US 11.

373ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 373 Internal Bus Performance Monitoring Unit (IBPMU)—Intel ® IX.

374ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Internal Bus Performance Monitoring Unit (IBPMU) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Proc.

375ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 375 Internal Bus Performance Monitoring Unit (IBPMU)—Intel ® IX.

376ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Internal Bus Performance Monitoring Unit (IBPMU) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 376 Order Number: 252480-006US Table 142.

377ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 377 Internal Bus Performance Monitoring Unit (IBPMU)—Intel ® IXP42X product line and IXC11 00 control plane processors 11.

378ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Internal Bus Performance Monitoring Unit (IBPMU) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 378 Order Number: 252480-006US 11.

379ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 379 Internal Bus Performance Monitoring Unit (IBPMU)—Intel ® IXP42X product line and IXC11 00 control plane processors Register ESR Bits Name Descrip tion 31:23 (Reserv ed).

380ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Internal Bus Performance Monitoring Unit (IBPMU) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 380 Order Number: 252480-006US Table 144.

381ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 381 Internal Bus Performance Monitoring Unit (IBPMU)—Intel ® IXP42X product line and IXC11 00 control plane processors 11.

382ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Internal Bus Performance Monitoring Unit (IBPMU) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 382 Order Number: 252480-006US 11.

383ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 383 Internal Bus Performance Monitoring Unit (IBPMU)—Intel ® IXP42X product line and IXC11 00 control plane processors 11.

384ページ

Intel ® IXP42X product line and IXC1100 control plane processors—Internal Bus Performance Monitoring Unit (IBPMU) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 384 Order Number: 252480-006US 11.

385ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 385 Internal Bus Performance Monitoring Unit (IBPMU)—Intel ® IX.

386ページ

Intel ® IXP42X product lin e and IXC1100 control plane proc essors—General Purpose Input/ Output (GPIO) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 386 Order Number: 252480-006US 12.

387ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 387 General Purpose Input/Output (GPIO)—Intel ® IXP42X product .

388ページ

Intel ® IXP42X product lin e and IXC1100 control plane proc essors—General Purpose Input/ Output (GPIO) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM S.

389ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 389 General Purpose Input/Output (GPIO)—Intel ® IXP42X product .

390ページ

Intel ® IXP42X product lin e and IXC1100 control plane proc essors—General Purpose Input/ Output (GPIO) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 390 Order Number: 252480-006US Table 146.

391ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 391 General Purpose Input/Output (GPIO)—Intel ® IXP42X product .

392ページ

Intel ® IXP42X product lin e and IXC1100 control plane proc essors—General Purpose Input/ Output (GPIO) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 392 Order Number: 252480-006US 12.4.

393ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 393 General Purpose Input/Output (GPIO)—Intel ® IXP42X product line and IXC1100 control plane processors 12.

394ページ

Intel ® IXP42X product lin e and IXC1100 control plane proc essors—General Purpose Input/ Output (GPIO) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 394 Order Number: 252480-006US 12.4.

395ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 395 General Purpose Input/Output (GPIO)—Intel ® IXP42X product line and IXC1100 control plane processors 12.4.7 GPIO Clock Register (GPCLKR) This register controls the use of GPIO15 and GPIO14 as clock outputs.

396ページ

Intel ® IXP42X product lin e and IXC1100 control plane proc essors—General Purpose Input/ Output (GPIO) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM S.

397ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 397 General Purpose Input/Output (GPIO)—Intel ® IXP42X product .

398ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Interrupt Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 398 Order Number: 252480-006US 13.0 Interrupt Controller The Interrupt Controller takes as inputs 32 individual interrupts.

399ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 399 Interrupt Controller—Intel ® IXP42X product line and IXC110.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Interrupt Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 400 Order Number: 252480-006US For instance, interrupt n umber 0 is disabled and an interrupt occurs on interrupt number 0.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 401 Interrupt Controller—Intel ® IXP42X product line and IXC110.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Interrupt Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 402 Order Number: 252480-006US 13.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 403 Interrupt Controller—Intel ® IXP42X product line and IXC110.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Interrupt Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 404 Order Number: 252480-006US 13.5.2 Interrupt-Enable Register 13.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 405 Interrupt Controller—Intel ® IXP42X product line and IXC1100 control plane processors 13.5.6 Interrupt Pr iority Register 13.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Interrupt Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 406 Order Number: 252480-006US 13.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 407 Interrupt Controller—Intel ® IXP42X product line and IXC110.

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Intel ® IXP42X product line and IXC1100 control plane processors—Timers Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 408 Order Number: 252480-006US 14.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 409 Timers— Intel ® IXP42X product line and IXC1100 co ntrol pl.

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Intel ® IXP42X product line and IXC1100 control plane processors—Timers Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 410 Order Number:.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 411 Timers— Intel ® IXP42X product line and IXC1100 co ntrol plane processors 14.4 Timer Register Definition 14.4.

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Intel ® IXP42X product line and IXC1100 control plane processors—Timers Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 412 Order Number: 252480-006US 14.4.3 General-Purpose Timer 0 Reload 14.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 413 Timers— Intel ® IXP42X product line and IXC1100 co ntrol plane processors 14.4.5 General-Purpo se Timer 1 Relo ad 14.

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Intel ® IXP42X product line and IXC1100 control plane processors—Timers Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 414 Order Number: 252480-006US 14.4.7 Watch-Dog Enable Register 14.4.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 415 Timers— Intel ® IXP42X product line and IXC1100 co ntrol plane processors 14.

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Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 416 Order Number: 252480-006US 15.

417ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 417 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c ontrol plane processors One Management Data Interface is shared between the two MII interfaces.

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Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 418 Order Number: 252480-006US •M I I I n t e r f a c e • Management Data Interface 15.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 419 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c .

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Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 420 Order Number: 252480-006US 15.

421ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 421 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c .

422ページ

Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 422 Order Number: 252480-006US T ransmit Control R egister 1 can be accessed directly .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 423 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c .

424ページ

Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 424 Order Number: 252480-006US Broadcast frames can be dropped and prevented from being sent to the NPE.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 425 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c ontrol plane processors (assuming bit 1 of R eceive Control R egister 1 is set to logic 1) and capture the remaining data.

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Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 426 Order Number: 252480-006US The physical interface clock speed will be di vided by the host-side clock speed and then rounded to the nearest whole number .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 427 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c ontrol plane processors 15.2 Register Descriptions The internal registers shown below are accessible via the APB bus interface.

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Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 428 Order Number: 252480-006US 15.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 429 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c ontrol plane processors 15.2.2 Transmit Control 2 15.

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Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 430 Order Number: 252480-006US 15.2.4 Receive Control 2 15.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 431 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c ontrol plane processors 15.2.6 Threshold For Partially Empty 15.

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Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 432 Order Number: 252480-006US 15.2.9 T ransmit Deferral Parameters 15.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 433 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c ontrol plane processors 15.2.11 Transmit Two Part Deferral Parameters 1 15.

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Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 434 Order Number: 252480-006US 15.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 435 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c ontrol plane processors 15.2.17 MDIO Command 3 15.2.

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Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 436 Order Number: 252480-006US 15.2.20 MDIO Status 1 15.2.21 MDIO Status 2 15.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 437 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c ontrol plane processors 15.

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Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 438 Order Number: 252480-006US 15.2.26 Address Mask 2 15.2.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 439 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c ontrol plane processors 15.2.30 Address Mask 6 15.2.

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Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 440 Order Number: 252480-006US 15.2.32 Address 1 15.2.33 Address 2 15.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 441 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c ontrol plane processors 15.

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Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 442 Order Number: 252480-006US 15.2.38 Threshold for Internal Clock 15.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 443 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c ontrol plane processors 15.2.40 Unicast Address 1 15.

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Intel ® IXP42X product line a nd IXC1100 control plane processors—Ethernet MAC A Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 444 Order Number: 252480-006US 15.2.44 Unicast Address 5 15.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 445 Ethernet MAC A— Intel ® IXP42X produ ct line and IXC1100 c ontrol plane processors § § Register core_control Bits Name Descrip tion 31:5 (Reserv ed) 4M d c _ e n 1 = Configures the MDC as an output cloc k.

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Intel ® IXP42X product line and IXC1100 control plane processors—Ethernet MAC B Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 446 Order Number: 252480-006US 16.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 447 Ethernet MAC B—Int el ® IXP42X product line and IXC1100 con.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—High-Speed Serial Interfaces Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 448 Order Number: 252480-006US 17.

449ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 449 High-Speed S erial Interfaces—Int el ® IXP42X product line .

450ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—High-Speed Serial Interfaces Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 450 Order Number: 252480-006US The actual FIFO the byte is extr acted from is dependent upon the protocol implemented and the FIFO arrangemen t.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 451 High-Speed S erial Interfaces—Int el ® IXP42X product line and IXC1100 control plane processors • Loop back the transmit to receive interface internally .

452ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—High-Speed Serial Interfaces Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 452 Order Number: 252480-006US The frame-sync signal is u sed to allow th e HS S interface to synchronize to external devices.

453ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 453 High-Speed S erial Interfaces—Int el ® IXP42X product line and IXC1100 control plane processors Either an internal or external frame-sync pulse or clock can still be utilized.

454ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—High-Speed Serial Interfaces Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 454 Order Number: 252480-006US The behavior of the HS S interface is indiffer ent to the source of the fr ame-sync pulse.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 455 High-Speed S erial Interfaces—Int el ® IXP42X product line .

456ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—High-Speed Serial Interfaces Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 456 Order Number: 252480-006US 4.096 MHz 2 T1/E1 512 2 8.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 457 High-Speed S erial Interfaces—Int el ® IXP42X product line and IXC1100 control plane processors 17.

458ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—High-Speed Serial Interfaces Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 458 Order Number: 252480-006US In Figure 86 , the FBit to be transm itted is stored in the HSS T ransmit FIFO.

459ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 459 High-Speed S erial Interfaces—Int el ® IXP42X product line and IXC1100 control plane processors • Frame sync active level (high/low).

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—High-Speed Serial Interfaces Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 461 High-Speed S erial Interfaces—Int el ® IXP42X product line .

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—High-Speed Serial Interfaces Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 463 High-Speed S erial Interfaces—Int el ® IXP42X product line .

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—High-Speed Serial Interfaces Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 465 High-Speed S erial Interfaces—Int el ® IXP42X product line and IXC1100 control plane processors Figure 94 illustrates that 4 E1 streams can be byte interleaved.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—High-Speed Serial Interfaces Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September .

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 467 High-Speed S erial Interfaces—Int el ® IXP42X product line .

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 468 Order Number: 252480-006US 18.

469ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 469 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors P ackets are assembled into groups to produce transactions.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 470 Order Number: 252480-006US Data flow is relative to the USB host.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 471 Universal Serial Bus (USB) v1.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Pr.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 473 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors The host is then responsible for assigning a unique address to each device on the bus.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 474 Order Number: 252480-006US 18.

475ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 475 Universal Serial Bus (USB) v1.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 476 Order Number: 252480-006US 18.

477ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 477 Universal Serial Bus (USB) v1.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Pr.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 479 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors When the device responds to the host, it must specify a legal USB configur ation.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 480 Order Number: 252480-006US A control register enables the UDC and ma sks the interrupt sources in the UDC.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 481 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 482 Order Number: 252480-006US 18.

483ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 483 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Pr.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 485 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 486 Order Number: 252480-006US 18.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 487 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 488 Order Number: 252480-006US 18.

489ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 489 Universal Serial Bus (USB) v1.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 490 Order Number: 252480-006US 18.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 491 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 492 Order Number: 252480-006US UDCCS4[RFS] is not cleared until all data is read from both buffers.

493ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 493 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Pr.

495ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 495 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 496 Order Number: 252480-006US 18.

497ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 497 Universal Serial Bus (USB) v1.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 498 Order Number: 252480-006US 18.

499ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 499 Universal Serial Bus (USB) v1.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 500 Order Number: 252480-006US 18.

501ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 501 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 502 Order Number: 252480-006US 18.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 503 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors UDCCS9[RSP] clears when the next OUT packet is received.

504ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Pr.

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Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 505 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

506ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 506 Order Number: 252480-006US 18.

507ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 507 Universal Serial Bus (USB) v1.

508ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 508 Order Number: 252480-006US 18.

509ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 509 Universal Serial Bus (USB) v1.

510ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 510 Order Number: 252480-006US 18.

511ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 511 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors The bit’s read v alue is zero.

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Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 512 Order Number: 252480-006US 18.

513ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 513 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

514ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 514 Order Number: 252480-006US 18.

515ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 515 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

516ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 516 Order Number: 252480-006US 18.

517ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 517 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

518ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 518 Order Number: 252480-006US 18.

519ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 519 Universal Serial Bus (USB) v1.

520ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 520 Order Number: 252480-006US 18.

521ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 521 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

522ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 522 Order Number: 252480-006US 18.

523ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 523 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

524ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 524 Order Number: 252480-006US 18.

525ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 525 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

526ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 526 Order Number: 252480-006US 18.

527ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 527 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

528ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 528 Order Number: 252480-006US 18.

529ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 529 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

530ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 530 Order Number: 252480-006US Since it is double-buffered, up to two pack ets of data may be ready .

531ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 531 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

532ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 532 Order Number: 252480-006US 18.

533ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 533 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

534ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 534 Order Number: 252480-006US Because it is double-buffered, up to two pack ets of data may be ready .

535ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 535 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

536ページ

Intel ® IXP42X product line and IXC1100 control plane pr ocessors—Universal Serial Bus (USB) v1.1 Device Controller Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 536 Order Number: 252480-006US 18.

537ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 537 Universal Serial Bus (USB) v1.1 Device Controller—Intel ® IXP42X product l ine and IXC1100 control plane processors 18.

538ページ

Intel ® IXP42X product line and IXC1100 cont rol plane processors—UTOPIA Level-2 Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 538 Order Number: 252480-006US 19.

539ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 539 UTOPIA Level- 2—Intel ® IXP42X product line and IXC1100 con.

540ページ

Intel ® IXP42X product line and IXC1100 cont rol plane processors—UTOPIA Level-2 Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 540 Order Number: 252480-006US 19.

541ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 541 UTOPIA Level- 2—Intel ® IXP42X product line and IXC1100 control plane p rocessors T o allow the most flexibility , a logical addre ss to physical address table is provided.

542ページ

Intel ® IXP42X product line and IXC1100 cont rol plane processors—UTOPIA Level-2 Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 542 Order Number: 252480-006US • There are eight active physical interfaces connected, named A through H, that map to logical address 0 through 7.

543ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 543 UTOPIA Level- 2—Intel ® IXP42X product line and IXC1100 control plane p rocessors In addition to supporting data tr ansmission and HEC gener ation, the T ransmit Module maintains some statistical values.

544ページ

Intel ® IXP42X product line and IXC1100 cont rol plane processors—UTOPIA Level-2 Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 544 Orde.

545ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 545 UTOPIA Level- 2—Intel ® IXP42X product line and IXC1100 con.

546ページ

Intel ® IXP42X product line and IXC1100 cont rol plane processors—UTOPIA Level-2 Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 546 Order Number: 252480-006US 19.4 MPHY Polling Routines The UTOPIA Level-2 co processor implements a r ound-robin polling algorithm.

547ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 547 UTOPIA Level- 2—Intel ® IXP42X product line and IXC1100 control plane p rocessors The UTOPIA Lev el-2 interface requires both transmit and receive clock inputs to be supplied from an external source.

548ページ

Intel ® IXP42X product lin e and IXC1100 control plane p rocessors—JTAG Interface Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 548 Order Number: 252480-006US 20.

549ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 549 JTAG Interfac e—Intel ® IXP42X produ ct line and IXC1100 control plane pr ocessors 20.1.1 Test-Logic-Reset State In T est-Logic-R eset State, test logic is disabled to allow normal oper ation of the chip.

550ページ

Intel ® IXP42X product lin e and IXC1100 control plane p rocessors—JTAG Interface Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 550 Ord.

551ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 551 JTAG Interfac e—Intel ® IXP42X produ ct line and IXC1100 control plane pr ocessors 20.1.6 Exit1-DR State The Exit1-DR state is a temporary controller state.

552ページ

Intel ® IXP42X product lin e and IXC1100 control plane p rocessors—JTAG Interface Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 552 Order Number: 252480-006US 20.1.10 Select-IR-Scan State The Select- IR Scan state is a tempor ary controller state.

553ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 553 JTAG Interfac e—Intel ® IXP42X produ ct line and IXC1100 control plane pr ocessors The instruction does not change and the instruction register retains its state.

554ページ

Intel ® IXP42X product lin e and IXC1100 control plane p rocessors—JTAG Interface Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 554 Order Number: 252480-006US 20.3 Data Registers The Data R egisters are essentially a shift regi ster and a read/write register juxtaposed.

555ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 555 JTAG Interfac e—Intel ® IXP42X produ ct line and IXC1100 co.

556ページ

Intel ® IXP42X product line and I XC1 100 control plane pro cessors—AHB Queue Manag er (AQM) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 556 Order Number: 252480-006US 21.

557ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 557 AHB Queue Ma nager (AQ M)—Inte l ® IXP42X pr oduct line and.

558ページ

Intel ® IXP42X product line and I XC1 100 control plane pro cessors—AHB Queue Manag er (AQM) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 558 Order Number: 252480-006US returned via the AHB and for a queue write requ est, the data from the AHB is written into the queue.

559ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 559 AHB Queue Ma nager (AQ M)—Inte l ® IXP42X pr oduct line and IXC11 00 control plane processors 21.

560ページ

Intel ® IXP42X product line and I XC1 100 control plane pro cessors—AHB Queue Manag er (AQM) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 560 Order Number: 252480-006US interface is written into SRAM at the calculated queue address.

561ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 561 AHB Queue Ma nager (AQ M)—Inte l ® IXP42X pr oduct line and IXC11 00 control plane processors than or equal to the full w atermark, the queu e is considered nearly full.

562ページ

Intel ® IXP42X product line and I XC1 100 control plane pro cessors—AHB Queue Manag er (AQM) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 562 Order Number: 252480-006US bus.

563ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 563 AHB Queue Ma nager (AQ M)—Inte l ® IXP42X pr oduct line and IXC11 00 control plane processors 21.

564ページ

Intel ® IXP42X product line and I XC1 100 control plane pro cessors—AHB Queue Manag er (AQM) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 564 Order Number: 252480-006US 21.

565ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 565 AHB Queue Ma nager (AQ M)—Inte l ® IXP42X pr oduct line and IXC11 00 control plane processors 21.

566ページ

Intel ® IXP42X product line and I XC1 100 control plane pro cessors—AHB Queue Manag er (AQM) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 006 566 Order Number: 252480-006US 21.5.7 Queue Interrupt En able Register 0 – 1 21.

567ページ

Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Control Plane Processo r September 2006 DM Order Number: 252480-006US 567 AHB Queue Ma nager (AQ M)—Inte l ® IXP42X pr oduct line and IXC11 00 control plane processors empty queues but until the queue configurat ion words have been set, this state is somewhat inconsistent.

568ページ

Intel ® IXP42X product line and I XC1 100 control plane pro cessors—AHB Queue Manag er (AQM) Intel ® IXP42X Product Line of Network Proces sors and IXC1100 Contro l Plane Processor DM September 2 .

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