IBASE IB704 - Manual (Page 46)

APPENDIX
42 IB704 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
000h - 01Fh DMA Controller #1
020h - 03Fh Interrupt Controller #1
040h - 05Fh Timer
060h Keyboard Controller (1)
0601h Control Port
064h Real Time Clock
070h - 07Fh Keyboard Controller (2)
080h - 09Fh DMA Page Register
0A0h - 0BFh Interrupt Controller #2
0C0h - 0DFh DMA Controller #2
0F0h – 00FFh Coprocessor
01F0h – 01F7h
03F6h IDE (Primary)
02F8h - 02FFh Serial Port #2(COM2)
0378h – 037Ah Parallel Port #1(LPT1)
03C0h – 03DFh Reserved for VGA
03F0h – 03F5h
03F7h FDD Controller
03F8h - 3FFh Serial Port #1(COM1)