Question

In which interrupt, the trigger is dependent on the logic level?

(a) edge triggered

(b) level-triggered

(c) software interrupt

(d) nmi

The question was asked by my college professor while I was bunking the class.

I want to ask this question from The mechanism of Interrupts in chapter Interrupts and Exceptions of Embedded Systems

Answer 1

The correct choice is (b) level-triggered

For explanation I would say: In the level-triggered interrupt, the trigger is completely dependent on the logic level. The processors may require the level to be in a certain clock width so that the shorter pulses which are shorter than the minimum pulse width are ignored.