User manual

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