IBM Aptiva Hardware Handbook

144 Appendix
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)
Function
0000-001F DMA controller
0020-0021 Interrupt controller 1
0022-0024 Reserved
0040-0043 System timers
0060 Keyboard/mouse controller
0061 System control port B
0064 Keyboard/mouse controller
0070-0071 RTC/CMOS and NMI mask
0080-008F DMA controller
0092 System control port A
00A0-00A1 Interrupt controller 2
00C0-00DF DMA controller
00EA-00ED Reserved
00F0-00FF Math coprocessor
0102 SVGA controller
0170-0177, 0376 Secondary IDE controller
bi2gntce.bk : bi2gappa.doc Page 144 Saturday, June 3, 1995 6:54 AM

IBM Aptiva Specifications

General

CPU	Intel Pentium
RAM	8 MB to 64 MB
Operating System	Windows 95
Graphics	S3, ATI
Optical Drive	CD-ROM
Ports	Serial, Parallel, PS/2
Expansion Slots	ISA, PCI