I/O Port Address Map - AXIOMTEK SBC84620 Series User Manual

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SBC84620 AMD Geode GX3 All-in-One Capa Board User's Manual
3.4

I/O Port Address Map

It has a total of 1KB port addresses available for assignment to other
devices via I/O expansion cards.
Address
000-01F
020-03F
040-05F
060-06F
070-07F
080-09F
0A0-0BF
0C0-0DF
0F0
0F1
0F8-0FF
1F0-1F8
250-25F
300-31F
380-38F
3A0-3AF
3B0-3BF
3C0-3CF
3D0-3DF
3F8-3FF
3E8-3EF
2F8-2FF
2E8-2EF
3F0-3FF
36
Devices
DMA controller #1
Interrupt controller #1
Timer
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
Fixed disk controller
HR I/O
Prototype card
SDLC #2
SDLC #1
MDA video card (including LPT1)
EGA card
CGA card
Serial port #1 (COM1)
Serial port #3 (COM3)
Serial port #2 (COM2)
Serial port #4 (COM4)
Super I/O
Hardware Description