Bitfields for AMD-645 DMA/Master Memory Access Control 3 register |
| Bit | Description |
|---|---|
|
15 - 12 |
top of PCI memory for ISA DMA/Master access, bits 23-20, less 1 |
|
11 |
accesses to E0000h-EFFFFh forwarded to PCI |
|
10 |
accesses to A0000h-BFFFFh forwarded to PCI |
|
9 |
accesses to 80000h-9FFFFh forwarded to PCI |
|
8 |
accesses to 00000h-7FFFFh forwarded to PCI |
|
7 |
accesses to DC000h-DFFFFh forwarded to PCI |
|
6 |
accesses to D8000h-DBFFFh forwarded to PCI |
|
5 |
accesses to D4000h-D7FFFh forwarded to PCI |
|
4 |
accesses to D0000h-D3FFFh forwarded to PCI |
|
3 |
accesses to CC000h-CFFFFh forwarded to PCI |
|
2 |
accesses to C8000h-CBFFFh forwarded to PCI |
|
1 |
accesses to C4000h-C7FFFh forwarded to PCI |
|
0 |
accesses to C0000h-C3FFFh forwarded to PCI |
|
See Also: |