System Input/Output (I/O) Addresses - IBM Aptiva Hardware Handbook

System Input/Output (I/O) addresses

This table shows the hexadecimal addresses for each of the system board I/O functions. You may want to use this
information if you install an adapter card that requires you to set I/O addresses.
Table 15: System I/O addresses
Address range
(hexadecimal)
0000-001F
0020-0021
0022-0024
0040-0043
0060
0061
0064
0070-0071
0080-008F
0092
00A0-00A1
00C0-00DF
00EA-00ED
00F0-00FF
0102
0170-0177, 0376
144 Appendix
Function
DMA controller
Interrupt controller 1
Reserved
System timers
Keyboard/mouse controller
System control port B
Keyboard/mouse controller
RTC/CMOS and NMI mask
DMA controller
System control port A
Interrupt controller 2
DMA controller
Reserved
Math coprocessor
SVGA controller
Secondary IDE controller