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A.1
System I/O Address & Interrupt Assignments
Table A.1: UNO-4673A/4683 Series System I/O Ports
Address Range
000-01F
020-03F
040-05F
060-06F
070-07F
080-09F
0A0-0BF
0C0-0DF
0F0
0F1
0F8-0FF
1F0-1F8
200-218
278-27F
2F8-2FF
380-38F
3A0-3AF
3B0-3BF
3C0-3CF
3D0-3DF
3F0-3F7
3F8-3FF
Table A.2: UNO-4673A/4683 Series Interrupt Assignment
Interrupt No.
NMI
IRQ 0
IRQ 1
IRQ 2
IRQ 8
IRQ 11
IRQ 12
IRQ 13
IRQ 14
UNO-4673A/4683 Series User Manual
Device
DMA controller (slave)
Interrupt controller 1, (master)
8254 timer/counter
8042 (keyboard controller)
Real-time clock, non-maskable interrupt (NMI)mask
DMA page register,
Interrupt controller 2 (slave)
DMA controller (master)
Clear math co-processor
Reset math co-processor
Math co-processor
1st fixed disk
Digital inputs, outputs and counter
Reserved
Serial port 2 (reserved)
SDLC, bisynchronous 2
Bisynchronous 1
Monochrome display
Reserved
Color/graphics monitor adapter
Diskette controller
Serial port 1 (reserved)
Interrupt Source
Parity error detected
Interval timer
Keyboard
Interrupt from controller 2 (cascade)
Real-time clock
Reserved for watchdog timer
PS/2 mouse
INT from co-processor
Primary IDE
28
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