I/O Port Address Map - AXIOMTEK EP820 Series User Manual

EP820 All-In-One EPIC Board User's Manual
3.4

I/O Port Address Map

® ®
The Intel Pentium M/Celeron
ports. There are total 1KB port addresses available for assignment to
other devices via I/O expansion cards.
Address
000-01F
020-03F
040-043
044-05F
060-06F
070-07F
080-09F
0A0-0BF
0C0-0DF
0F0
0F1
0F8-0FF
170-177
1F0-1F7
2F8-2FF
378-37F
3F0-3F5
3F8-3FF
32
®
M CPUs can communicate via I/O
Devices
DMA controller #1
Interrupt controller #1
Timer
Mother Board Resource
Keyboard controller
Real time clock, NMI
DMA page register
Interrupt controller #2
DMA controller #2
Clear math coprocessor busy signal
Reset math coprocessor
Math processor
Secondary IDE Channel
Primary IDE Channe
Serial port #2 (COM2)
Parallel Port #1 (LPT1)
Floppy disk controller
Serial port #1 (COM1)
Hardware Description