Measurement-computing PCM-DAC02 Manual do Utilizador descarregar pdf (Página 14)

0 to 5V 1 0

0 to 10V 1 1

UDIO & LDIO

Set the direction of the upper and lower four bits of the digital I/O lines. Set to “1”

for output; set to “0” for input. Digital I/O defaults to input on power up

INT_EN

Enable interrupt from pin 5. Enable = “1”. Disable = “0”

EXT_INT

Set to “1” when an interrupt has been detected on pin 5. Interrupt is level only.

Interrupt occurs at TTL high (2.5V < TTL High < 5V). Reading base+0 clears this bit.

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Measurement-computing PCM-DAC02 Manual do Utilizador Página 14