Edge triggered interrupt: Difference between revisions

Revision as of 00:57, 11 January 2006

Revision as of 01:07, 11 January 2006

Line 1:

In [[computing]], an '''edge-triggered interrupt'' is a class of [[interrupt]]s that are triggered only on the rising edge of the assertion of the [[interrupt request]] line. These types of interrupts can typically only identify the presence of an interrupt request. When another interrupt is generated an edge triggered interrupt will not be able to distinguish it since the line is already asserted. Compare [[level triggered interrupt]].

There are two ways in which an interrupt can be seen: Either as a single event or as a continuous condition.

Opposed to [[level triggered interrupt|level triggered interrupts]], edge triggered interrupts are seen as a single event.