IBASE SI-38 - Manual (Page 43)

43
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-0CF7h PCI bus
0000h-0CF7h Direct memory access controller
0010h-001Fh Motherboard resources
0020h-0021h Programmable interrupt controller
0022h-003Fh Motherboard resources
0040h-0043h System timer
0044h-005Fh Motherboard resources
0060h-0060h Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
0061h-0061h System speaker
0062h-0063h Motherboard resources
0064h-0064h Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
0065h-006Fh Motherboard resources
0070h-0073h System CMOS/real time clock
0074h-007Fh Motherboard resources
0080h-0090h Direct memory access controller
0091h-0093h Motherboard resources
0094h-009Fh Direct memory access controller
00A0h-00A1h Programmable interrupt controller
00A2h-00BFh Motherboard resources
00C0h-00DFh Direct memory access controller
00E0h-00EFh Motherboard resources
00F0h-00FFh Numeric data processor
0170h-0177h Secondary IDE Channel
01F0h-01F7h Primary IDE Channel
0274h-0277h ISAPNP Read Data Port
0279h-0279h ISAPNP Read Data Port
03F8H-03FFFh Communications Port (COM1)