Specifications
6–7
System I/O address specifications
I/O address (hex)
System function (shipping configuration)
000 - 01F
DMA controller
020 - 021
Program interrupt controller
024 - 025
Program interrupt controller
028 - 029
Program interrupt controller
02C - 03D
Program interrupt controller
02E - 02F
Motherboard resources
030 - 031
Program interrupt controller
034 - 035
Program interrupt controller
038 - 039
Program interrupt controller
03C- 03D
Program interrupt controller
040 - 043
System timer
04E-04F Motherboard
resources
050-053 System
timer
060
Standard 101-/102-key or Microsoft Natural Keyboard
061 Motherboard
resources
062
Microsoft ACPI-compliant embedded controller
063
Motherboard resources
064
Standard 101-/102-key or Microsoft Natural Keyboard
065
Motherboard resources
066
Microsoft ACPI-compliant embedded controller
067 Motherboard
resources
070
Motherboard resources
071-077
System CMOS/real time clock
080
Motherboard resources
081-091 Direct
memory access controller
092
Motherboard resources
093-09F
Direct memory access controller
0A0-0A1
Program interrupt controller
0A4-0A5
Program interrupt controller
0A8-0A9
Program interrupt controller
0AC-0AD
Program interrupt controller
0B0-0B1
Program interrupt controller
0B2-0B3 Motherboard
resources
0B4- 0B5
Program interrupt controller
0B8-0B9
Program interrupt controller
0BC- 0BD
Program interrupt controller
(Continued)