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User’s Manual
WIN Enterprises, Inc.
May, 2009
68
I/O Map:
The addresses shown in the table are typical locations
I/O Port
Assignment
0 ~ F
AT DMA controller
20 ~ 21
AT interrupt controller
40 ~ 43
8254 Compatible Programmable Timer
60
IBM Enhanced keyboard controller
61
AT Style Speaker
64
IBM Enhanced keyboard controller
70 ~ 71
Real Time Clock
81 ~ 83
AT DMA controller
87
AT DMA controller
89 ~ 8B
AT DMA controller
8F ~ 91
AT DMA controller
A0 ~ A1
AT interrupt controller
C0 ~ DF
AT DMA controller
F0 ~ FF
Math Coprocessor
170 ~ 177
IDE Controller
1F0 ~ 1F7
IDE Controller
200 ~ 207
Game port
220 ~ 22E
Sound Card
2F8 ~ 2FF
COM2
376 IDE
Controller
378 ~ 37A
LPT1
3B0 ~ 3BB
VGA Adapter
3C0 ~ 3DF
VGA Adapter
3F0 ~ 3F5
FDD Controller
3F6 IDE
Controller
3F7 FDD
Controller
3F8 ~ 3FF
COM1
480 ~ 48F
PCI Bus
4D0 ~ 4D1
PCI Bus
CF8 ~ CFF
PCI Bus
4000 ~ 407F PCI Bus
4080 ~ 40FF PCI Bus
5000 ~ 501F PCI Bus