User`s manual

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Appendix A Pin Assignments 45

A.11 UNO-2050 Control Register

Table A-13: UNO-2050 control register

Base Address 7 6 5 4 3 2 1 0

Base+00H R

Isolated Digital Input Status Register

DI7 DI6 DI5 DI4 DI3 DI2 DI1 DI0

Base+01H R/W

Isolated Digital Output Control/Status Register

DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0

Base+02H R/W

Interrupt Enable Control/Status Register

DI1EN DI0EN

Base+03H R/W

Interrupt Triggering Edge Control/Status Register

DI1TE DI0TE

Base+07H R/W

Interrupt Flag/Clear Register

CTR1F CTR0F DI1F DI0F

Base+08H R/W

82C54 Chip Counter0 Register

Base+09H R/W

82C54 Chip Counter1 Register

Base+0BH R/W

82C54 Chip Control Register

Base+0CH R/W

Counter0 Start Control / Output Status Register

CTR0Out CTR0Gate

Base+0DH R/W

Counter1 Start Control / Output Status Register

CTR1Out CTR1Gate

Base+0EH R/W

Counter0 Setting Register

CTR0IntSet

CTR0OutSet CTR0GateSet CTR0CLKSet

Base+0FH R/W

Counter1 Setting Register

CTR32Set S1 S0 CTR1IntSet

CTR1OutSi

g

CTR1GateSi

g

CTR1CLKSi

g

Base+10H R/W

LED Control Register

LEDS1 LEDS0 LEDEn

Base+11H R/W

Buzzer Control Register

SPKS1 SPKS0 SPKEn