|
| Table |
|
| System I/O Addresses |
I/O Address (Hex) | System Function (Shipping Configuration) | |
|
|
|
000 | - 00F | DMA controller no. 1 |
010 | - 01F | Unused |
020 | - 021 | Interrupt controller no. 1 |
022 | - 024 | Opti chipset configuration registers |
025 | - 03F | Unused |
02E - 02F | 87334 "Super IO" configuration for CPU | |
040 | - 043 | Counter/timer registers |
044 | - 05F | Unused |
060 |
| Keyboard controller |
061 |
| Port B |
062 | - 063 | Unused |
064 |
| Keyboard controller |
065 | - 06F | Unused |
070 | - 071 | NMI enable/real time clock |
072 | - 07F | Unused |
080 | - 08F | DMA page registers |
090 | - 091 | Unused |
092 |
| Port A |
093 | - 09F | Unused |
0A0 - 0A1 | Interrupt controller no. 2 | |
0A2 - 0BF | Unused | |
0C0 - 0DF | DMA controller no. 2 | |
0E0 - 0EF | Unused | |
0F0 - 0F1 | Coprocessor busy clear/reset | |
0F2 - 0FF | Unused | |
100 | - 16F | Unused |
170 | - 177 | Secondary fixed disk controller |
178 | - 1EF | Unused |
1F0 - 1F7 | Primary fixed disk controller | |
1F8 - 200 | Unused | |
Continued
