Compaq Evo N800c Series Maintenance And Service Manual page 144

Specifications
I/O Address (hex)
000 - 00F
010 - 01F
020 - 021
022 - 024
025 - 03F
02E - 02F
040 - 05F
044 - 05F
060
061
062 - 063
064
065 - 06F
070 - 071
072 - 07F
080 - 08F
090 - 091
092
093 - 09F
0A0 - 0A1
6–16
Table 6-15
System I/O Addresses
System Function (shipping configuration)
DMA controller no. 1
Unused
Interrupt controller no. 1
Opti chipset configuration registers
Unused
87334 "Super I/O" configuration for CPU
Counter/timer registers
Unused
Keyboard controller
Port B
Unused
Keyboard controller
Unused
NMI enable/real time clock
Unused
DMA page registers
Unused
Port A
Unused
Interrupt controller no. 2
Maintenance and Service Guide