GATE CSE 2000 | Question: 1.9

Question

The 8085 microprocessor responds to the presence of an interrupt

• A. as soon as the TRAP pin becomes 'high'
• B. by checking the TRAP pin for 'high' status at the end of each instruction
• C. by checking the TRAP pin for 'high' status at the end of the execution of each instruction.
• D. by checking the TRAP pin for 'high' status at regular intervals.

Comments

can anyone give a proper ans with reference

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right answer is A??

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out of syllabus now.

Answer 1

Option c .

Comments

yes  answer should be c  microprocessor  check for interrupt at end of  execution of each instruction.

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What is difference between Option B and Option C

Answer 2

Option C

TRAP is non-maskable interrupt and is active high  level, edge triggered non-maskable highest priority interrupt.