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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

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 37 38

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