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Which pin of the external hardware is said to exhibit INT0 interrupt?

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in Microcontroller by (14.6k points)
Which pin of the external hardware is said to exhibit INT0 interrupt?

(a) pin no 10

(b) pin no 11

(c) pin no 12

(d) pin no 13

This question was posed to me during a job interview.

The origin of the question is Interrupt Programming in chapter 8051 Microcontroller of Microcontroller

1 Answer

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by (24.2k points)
Correct answer is (c) pin no 12

To explain: INT0 interrupt is caused when pin no 12 in the hardware of the 8051 controller is enabled with a low leveled pulse.

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