System Input/Output Addresses - IBM Aptiva Handbook

        
This table shows the hexadecimal addresses for each of the system board Input/Output (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 3: System input/output addresses
Address range
(hexadecimal)
000-00F
020-021
040-043
060-060
061-061
070-071
081-08F
0A0-0A1
0C0-0DF
0F0-0FF
170-177
1F0-1F7
200-207
278-27F
2F8-2FF
A-4 Appendix A: Specification tables
Function
DMA controller-1
Interrupt controller-1
System timer
Keyboard controller 8742
System Speaker
CMOS RAM Address and Real Tiime Clock
DMA controller-2
Interrupt controller-2
DMA controller-2
Math Co-Processor
Secondary IDE
Primary IDE
Game Port
Parallel Printer Port 2
Serial Asynchronous Port 2