1.

The 8085 microprocessor responds to the presence of an interrupt ___________(a) As soon as the trap pin becomes ‘LOW’(b) By checking the trap pin for ‘high’ status at the end of each instruction fetch(c) By checking the trap pin for ‘high’ status at the end of execution of each instruction(d) By checking the trap pin for ‘high’ status at regular intervalsI got this question in an interview.Origin of the question is Interrupts in portion Input/Output Organisation of Computer Architecture

Answer»

The CORRECT choice is (c) By checking the trap pin for ‘high’ status at the end of execution of each instruction

The BEST explanation: The 8085 MICROPROCESSOR are DESIGNED to complete the execution of the current instruction and then to service the interrupts.



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