Rainbow Electronics W90N740 User Manual
Page 69
W90N740
Publication Release Date: November 26, 2004
- 65 -
Revision A4
Cache Configuration Register (CAHCNF)
Cache controller has a configuration register to enable or disable the I-Cache, D-Cache, and Write
buffer.
Register Address R/W
Description
Reset
Value
CAHCNF
0xFFF0.2000
R/W Cache configuration register
0x0000.0000
31
30
29
28
27
26
25
24
RESERVED
23
22
21
20
19
18
17
16
RESERVED
15
14
13
12
11
10
9
8
RESERVED
7
6
5
4
3
2
1
0
RESERVED WRBEN
DCAEN
ICAEN
WRBEN [2] ：Write buffer enable
When set to “1”, write buffer operation is enabled.
Write buffer is disabled after reset.
DCAEN [1] ： D-Cache enable
When set to “1”, Data cache operation is enabled.
D-Cache is disabled after reset.
ICAEN [0] ： I-Cache enable
When set to “1”, Instruction cache operation is enabled.
I-Cache is disabled after reset.