System I/O Address Specifications - Compaq Presario CQ20-100 - Notebook PC Maintenance And Service Manual

Specifications

System I/O address specifications

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