79R4640-200DZ Ver la hoja de datos (PDF) - Integrated Device Technology

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79R4640-200DZ

Low-Cost Embedded 64-bit RISController w/ DSP Capability

Integrated Device Technology 

IDT79RC4640™

Mode bit

Description

0

4s:1

7:5

8

10:9

11

12

14:13

255:15

Reserved (must be zero)

Writeback data rate:

32-bit

0→Ω

1 → WWx

2 → WWxx

3 → WxWx

4 → WWxxx

5 → WWxxxx

6 → WxxWxx

7 → WWxxxxxx

8 → WxxxWxxx

9-15 reserved

Clock multiplier:

0→2

1→3

2→4

3→5

4→6

5→7

6→8

7 reserved

0 → Little endian

1 → Big endian

00 → R4000 compatible

01 → reserved

10 → pipelined writes

11 → write re-issue

Disable the timer interrupt on Int[5]

Must be 1

Output driver strength:

10 → 100% strength (fastest)

11 → 83% strength

00 → 67% strength

01 → 50% strength (slowest)

Must be zero

Table 6 Boot-time mode stream

10 of 23

December 5, 2008

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