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參數(shù)資料
| 型號： | CYNPC80192-BGC |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | Network Database Coprocessor |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PBGA388 |
| 封裝： | BGA-388 |
| 文件頁數(shù)： | 15/42頁 |
| 文件大?。?/td> | 305K |
| 代理商： | CYNPC80192-BGC |
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CYNCP80192
Document #: 38-02043 Rev. *B
Page 15 of 42
7.0
Operating Registers
There are 512 uniquely addressable 32-bit-wide registers (see
Table 7-1
). These 512 registers are divided into 32 descriptors
and are called context descriptors (or “context”). Each context comprises 16 registers (i.e., 32 ×
16 = 512). Each of these contexts
is used for storing commands, data, and responses (returned results from NSEs). These 32 contexts provide a 32-deep pipeline
for the network processor(s) system. The allocation of contexts between the multiple processors (or one processor running
multiple processors) can be done by the network processor system. For example, a network processor system having four
processing elements can assign eight contexts for each processor.
7.1
Address Mapping
Table 7-1. Operating Registers Addressing Mapping (ADR[9] = 1)
ADR[8:0]
0–15
16–31
32–47
48–63
64–79
80–95
96–111
112–127
128–143
144–159
160–175
176–191
192–207
208–223
223–239
240–255
256–271
272–287
288–303
304–319
320–335
336–351
352–367
368–383
384–399
400–415
416–431
432–447
448–463
464–479
480–495
496–511
Contents
Context 0
Context 1
Context 2
Context 3
Context 4
Context 5
Context 6
Context 7
Context 8
Context 9
Context 10
Context 11
Context 12
Context 13
Context 14
Context 15
Context 16
Context 17
Context 18
Context 19
Context 20
Context 21
Context 22
Context 23
Context 24
Context 25
Context 26
Context 27
Context 28
Context 29
Context 30
Context 31
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