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Once the processor responds to an INTR signal, the IF is automatically

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+1 vote
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in Microprocessor by (39.4k points)
Once the processor responds to an INTR signal, the IF is automatically

(a) set

(b) reset

(c) high

(d) low

The question was posed to me in an interview.

The origin of the question is Non Maskable Interrupt and Maskable Interrupt (INTR) topic in portion Special Architectural Features and Related Programming of Microprocessor

1 Answer

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by (49.2k points)
Correct option is (b) reset

Explanation: The IF is automatically reset when the processor responds to an INTR signal. If the processor wants to respond to any type of INTR signal further then, the IF should again be set.

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