Rainbow Electronics W90N740 - 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.