Specifications
| 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 I/O” configuration for CPU |
|
|
040 - 05F | 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/RTC |
|
|
072 - 07F | Unused |
|
|
080 - 08F | DMA page registers |
|
|
090 - 091 | Unused |
|
|
092 | Port A |
|
|
093 - 09F | Unused |
|
|
0A0 - 0A1 | Interrupt controller no. 2 |
|
|
Maintenance and Service Guide |
