2. IRQ and I/O Port Address
Express5800/53Xi, Y53Xi User's Guide
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Chapter 4 Appendix
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I/O Port Address
Address*
Chip in use
20 - 21
Chipset
2E - 2F
Super I/O
40 - 43
System timer
61 System
speaker
70, 71
Real-time clock
80 - 8F
DMA controller
92 Chipset
A0 - A1
Interrupt controller
B2 Chipset
F0 Chipset
170 - 177
IDE controller (secondary)
1F0 - 1F7
IDE controller (primary)
2F8 - 2FF
Serial port
376
IDE controller (secondary)
3F6
IDE controller (primary)
3F8 - 3FF
Serial port
4D0 - 4D1
Chipset
CF8, CFC
Chipset
CF9 Chipset
A35 - A36
Hardware monitor
* Hexadecimal notation