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INTR, WR signal is an input/output signal pin?

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+1 vote
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in Microcontroller by (14.6k points)
INTR, WR signal is an input/output signal pin?

(a) both are output

(b) both are input

(c) one is input and the other is output

(d) none of the mentioned

The question was posed to me in quiz.

My question is from ADC, DAC Interfacing topic in chapter 8051 Microcontroller of Microcontroller

1 Answer

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by (24.2k points)
Right choice is (c) one is input and the other is output

To explain I would say: INTR pin tells about the end of the conversion (output) and WR pin tells us to start the conversion (input).

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