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If we need to operate a key of a keyboard in an interrupt mode, then it will generate what kind of interrupt?

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If we need to operate a key of a keyboard in an interrupt mode, then it will generate what kind of interrupt?

(a) ES

(b) EX0/EX1

(c) T0/T1

(d) RESET

The question was asked during an online exam.

Origin of the question is Keyboard Interfacing topic in chapter 8051 Microcontroller of Microcontroller

1 Answer

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by (24.2k points)
The correct option is (b) EX0/EX1

The best explanation: If a key is to operate in an interrupt mode then it will generate an external hardware interrupt.

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