Measurement-computing PCM-DAC08 Manual de usuario descargar pdf (Pagina 20)

DIO0DIO1DIO2DIO3DIO4DIO5DIO6DIO7

01234567

BASE + 4 - Interrupt Control & Digital I/O Direction Control

WRITE: Set control bits.

READ: Read status of control bits.

LDIRUDIRINT_ENINTREQXXXX

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INTREQ

Default is no interrupt has occurred = 0. When set to 1 an interrupt has occurred.

External interrupts, when enabled, occur at TTL high (2.5<TTL High<5V).

A read base+1 clears this bit.

Interrupt status routinues may want to read and verify this bit then clear it with a read

of Base +1.

INT_EN

Enable external interrupt. Enable = 1. Disable = 0.

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Measurement-computing PCM-DAC08 Manual de usuario Pagina 20