IBASE ET860 - Manual (Page 40)

APPENDIX
34 ET860 User’s Manual
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 - 006Fh PCI bus
0020h - 0021h Programmable interrupt controller
0024h - 0025h Programmable interrupt controller
0028h - 0029h Programmable interrupt controller
002Ch - 002Dh Programmable interrupt controller
0030h - 0031h Programmable interrupt controller
0034h - 0035h Programmable interrupt controller
0038h - 0039h Programmable interrupt controller
003Ch - 003Dh Programmable interrupt controller
0040h - 0043h System timer
0050h - 0053h System timer
0060h - 0060h Standard PS/2 Keyboard
0064h - 0064h Standard PS/2 Keyboard
0070h - 0070h System CMOS/real time clock
0078h - 0CF7h PCI bus
00A0h - 00A1h Programmable interrupt controller
00A4h - 00A5h Programmable interrupt controller
00A8h - 00A9h Programmable interrupt controller
00ACh - 00ADh Programmable interrupt controller
00B0h - 00B1h Programmable interrupt controller
00B4h - 00B5h Programmable interrupt controller
00B8h - 00B9h Programmable interrupt controller
00BCh - 00BDh Programmable interrupt controller
0240h - 0247h Communications Port (COM3)
0250h - 0257h Communications Port (COM4)
02F8h - 02FFh Communications Port (COM2)
0378h - 037Fh Printer Port (LPT1)