HP Evo n180 Maintenance and Service Guide Compaq Evo N180 Series - Page 134

Table 6-13, System I/O Addresses, I/O Address, System Function

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Specifications Table 6-13 System I/O Addresses I/O Address (hex) 000 to 00F 010 to 01F 020 to 021 022 to 024 025 to 03F 02E to 02F 040 to 05F 044 to 05F 060 061 062 to 063 064 065 to 06F 070 to 071 072 to 07F 080 to 08F 090 to 091 092 093 to 09F 0A0 to 0A1 System Function (shipping configuration) DMA controller no. 1 Unused Interrupt controller no. 1 Opti chipset configuration registers Unused 87334 "Super IO" configuration for processor 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 6-14 Maintenance and Service Guide

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6–14
Maintenance and Service Guide
Specifications
Table 6-13
System I/O Addresses
I/O Address
(hex)
System Function
(shipping configuration)
000 to 00F
DMA controller no. 1
010 to 01F
Unused
020 to 021
Interrupt controller no. 1
022 to 024
Opti chipset configuration registers
025 to 03F
Unused
02E to 02F
87334 “Super IO” configuration for processor
040 to 05F
Counter/timer registers
044 to 05F
Unused
060
Keyboard controller
061
Port B
062 to 063
Unused
064
Keyboard controller
065 to 06F
Unused
070 to 071
NMI enable/real-time clock
072 to 07F
Unused
080 to 08F
DMA page registers
090 to 091
Unused
092
Port A
093 to 09F
Unused
0A0 to 0A1
Interrupt controller no. 2