Bitfields for Intel 82378/82379 MEMCS# Attribute Register 1/2/3 |
| Bit | Description |
|---|---|
|
7 |
write-enable xC000h-xFFFFh expansion ROM |
|
6 |
read-enable xC000h-xFFFFh expansion ROM |
|
5 |
write-enable x8000h-xBFFFh expansion ROM |
|
4 |
read-enable x8000h-xBFFFh expansion ROM |
|
3 |
write-enable x4000h-x7FFFh expansion ROM |
|
2 |
read-enable x4000h-x7FFFh expansion ROM |
|
1 |
write-enable x0000h-x3FFFh expansion ROM |
|
0 |
read-enable x0000h-x3FFFh expansion ROM |
|
Note: |
x = C/D/E depending on the attribute register. |
|
See Also: |
#01064 |