Appendix A: Technical Specifications
Memory Map
Address | Address |
|
| |
Range | Range | Size | Description | |
Decimal | Hexadecimal |
|
| |
0F0000- | 64 KB | Upper BIOS | ||
0FFFFF | ||||
|
|
| ||
0E0000- | 64 KB | Lower BIOS | ||
0EFFFF | ||||
|
|
| ||
| 0C0000- |
| Expansion | |
128 KB | Card BIOS | |||
0DFFFF | ||||
|
| and Buffer | ||
|
|
| ||
|
|
| Standard | |
0A0000- | 128 KB | PCI/ISA | ||
0BFFFF | Video | |||
|
| |||
|
|
| Memory | |
| 080000- |
| Ext. | |
128 KB | Conventional | |||
09FFFF | ||||
|
| memory | ||
|
|
| ||
0K- 512K | 000000- | 512 KB | Conventional | |
07FFFF | memory | |||
|
|
DMA Channels
DMA # | Data Width | System Resource |
0 | 8- or |
|
1 | 8- or | Parallel port (for ECP) |
2 | 8- or | Floppy Drive |
3 | 8- or | Parallel port (for ECP) |
4 | Reserved- | cascade channel |
5 | Open | |
6 | Open | |
7 | Open |
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