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For the INTR signal, to be responded to in the next instruction cycle, it must go ________ in the last clock cycle of the current instruction

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For the INTR signal, to be responded to in the next instruction cycle, it must go ________ in the last clock cycle of the current instruction

(a) high

(b) low

(c) high or low

(d) unchanged

I have been asked this question in semester exam.

This interesting question is from Non Maskable Interrupt and Maskable Interrupt (INTR) topic in chapter Special Architectural Features and Related Programming of Microprocessor

1 Answer

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by (49.2k points)
Correct option is (a) high

The best explanation: The INTR signal must go high in the clock cycle of the current instruction in order to respond in the next instruction cycle.

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