A device employing INTR line for device interrupt puts the

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A device employing INTR line for device interrupt puts the CALL instruction on the data bus while

1. INTA is active
2. HOLD is active
3. READY is active
4. None of these

Correct Option: A

INTR is a signal which if enabled then microprocessor has interrupt enabled. It receives high INR signal & activates INTA signal, so another request can’t be accepted till CPU is busy in servicing interrupt. Hence (a) is correct option.