IBASE IB550 - Manual (Page 53)

APPENDIX
IB550F User’s Manual 49
Appendix
A. I/O Port Address Map
Each peripheral device in the system is assigned a set of I/O port
addresses which also becomes the identity of the device. The following
table lists the I/O port addresses used.
Address Device Description
0000h-000Fh Direct memory access controller
0020h-0021h Programmable interrupt controller
0022h-003Fh PCI bus
0040h-0043h System timer
0044h-0047h PCI bus
004Ch-006Fh PCI bus
0060h-0060h PC/AT Enhanced PS/2 Keyboard
(101/102-Key)
0061h-0061h System speaker
0064h-0064h PC/AT Enhanced PS/2 Keyboard
(101/102-Key)
0070h-0071h System CMOS/real time clock
0072h-007Fh PCI bus
0081h-0083h Direct memory access controller
0087h-0087h Direct memory access controller
0089h-008Bh Direct memory access controller
008Fh-0091h Direct memory access controller
0090h-0091h PCI bus
0093h-009Fh PCI bus
00A0h-00A1h Programmable interrupt controller
00A2h-00BFh PCI bus
00C0h-00DFh Direct memory access controller
00E0h-00EFh PCI bus
00F0h-00FFh Numeric data processor
0100h-0CF7h PCI bus
0170h-0177h Secondary IDE Channel
01F0h-01F7h Primary IDE Channel