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The service to an interrupt will be delayed if it appears during the execution of

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The service to an interrupt will be delayed if it appears during the execution of

(a) RETI instruction

(b) Instruction that writes to IE register

(c) Instruction that writes to IP register

(d) All of the mentioned

I got this question in quiz.

I'd like to ask this question from Interrupt Structure of 8051 in chapter Microcontroller 8051 of Microprocessor

1 Answer

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by (49.2k points)
Correct option is (d) All of the mentioned

Explanation: The service to an interrupt will be delayed if it appears during the execution of RETI instruction or the instruction that writes to IE/IP registers.

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