Specifications
Maintenance and Service Guide
7–17
Table 7-12
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
Содержание Compaq NC8230
Страница 72: ...4 4 Maintenance and Service Guide Illustrated Parts Catalog Computer Major Components ...
Страница 74: ...4 6 Maintenance and Service Guide Illustrated Parts Catalog Computer Major Components ...
Страница 76: ...4 8 Maintenance and Service Guide Illustrated Parts Catalog Computer Major Components ...
Страница 78: ...4 10 Maintenance and Service Guide Illustrated Parts Catalog Computer Major Components ...
Страница 80: ...4 12 Maintenance and Service Guide Illustrated Parts Catalog Computer Major Components ...