UGC NET CS 2015 Dec – paper-3
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Question 3
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Which of the following 8085 microprocessor hardware interrupt has the lowest priority?
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RST 6.5
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RST 7.5
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TRAP
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INTR
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Question 3 Explanation:
DI(Disable Interrupt): DI allows the microprocessor to reject the interrupt. In DI the interrupts are disabled immediately and no flags are affected.
SIM(Set Instruction Mask): It uses flags to disable the interrupts. Here “1” indicated that the interrupt is masked and “0” indicates the the instruction is not masked.
Correct Answer: D
Question 3 Explanation:
DI(Disable Interrupt): DI allows the microprocessor to reject the interrupt. In DI the interrupts are disabled immediately and no flags are affected.
SIM(Set Instruction Mask): It uses flags to disable the interrupts. Here “1” indicated that the interrupt is masked and “0” indicates the the instruction is not masked.
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