AXIOMTEK SBC8243, User Manual

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SBC8243 All-in-One Half-size CPU Card Series User’s Manual
Hardware Description
3
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Address Devices
000-01F
DMA controller #1
020-03F Interrupt controller #1
040-05F
Timer
060-06F Keyboard controller
070-07F
Real time clock, NMI
080-09F DMA page register
0A0-0BF Interrupt controller #2
0C0-0DF
DMA controller #2
0F0 Clear math co-processor busy signal
0F1 Reset math co-processor
0F8-0FF
Math processor
10C-10E RAM/ROM disk program port address
120-123
Watch-dog timer operation
1F0-1F8 Fixed disk controller
200-207 Game port
300-31F
Prototype card
360-36F Reserved
Continued . . . . .