_______ interrupt is a positive edge sensitive interrupt and can be triggered with a short pulse.

Question

Question

This question was previously asked in

RRB JE ECE 22 Apr 2025 Shift 2 CBT 2 Official Paper

Answer 1

The correct answer is: 2) RST 7.5

Explanation:

In the 8085 microprocessor, the RST 7.5 interrupt has unique characteristics:

Edge-Triggered:
RST 7.5 is positive-edge sensitive, meaning it triggers when the signal transitions from LOW to HIGH.
It can be activated by a short pulse (minimum 500 ns wide).

Other RST Interrupts:

RST 6.5 and RST 5.5: Level-sensitive (require the signal to remain HIGH until acknowledged).

RST 4.5: Not a standard interrupt in 8085.6