UNO-4678 User Manual
20
Appendix A System Settings and Pin
Assignments
A.1 UNO-4678 System I/O & Interrupt Assignments
Table A.1: UNO-4678 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
278-27F
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
443
Watchdog timer