Bitfields for AIC-78xx device configuration register (DEVCONFIG) |
| Bit | Description |
|---|---|
|
15 - 11 |
reserved |
|
10 |
(AIC-787x+) multi-port mode (MPORTMODE) |
|
9 |
(AIC-787x+) external SRAM present? (RAMPSM) |
|
8 |
"VOLSENSE" |
|
7 |
SCB RAM select (SCBRAMSEL) |
|
6 |
"MRDCEN" |
|
5 |
(AIC-787x+) external SCB SRAM access time (EXTSCBTIME) |
|
4 |
(AIC-787x+) external SCB SRAM parity enable (EXTSCBPEN) |
|
3 |
"BERREN" |
|
2 |
"DACEN" |
|
1 |
SCSI terminator power level (STPWLEVEL) |
|
0 |
(AIC-787x+) differential active negation enable (DIFACTNEGEN) |
|
Note: |
Clearing bit 7 allows access to the external SCB SRAM. |
|
See Also: |