Triggering methods Each interrupt signal input is designed to be triggered by either a logic signal level or a particular signal edge (level transition). Level-sensitive inputs continuously request processor service so long as a particular (high or low) logic level is applied to the input. Edge-sensitive inputs react to signal edges: a particular (rising or falling) edge will cause a service request to be latched; the processor resets the latch when the interrupt handler executes.
triggerIng methods Each InTerrupt SigNal input iS dEsIgNeD to be TriggeREd By eIThEr a lOgic signAl lEvel Or a paRticUlar SiGnal eDge (leVel tranSiTiON). lEvel-sensITiVe inputS CoNtinuousLy rEqueSt procesSor sErvice sO long as a particULAr (HiGh oR lOw) Logic LevEL is aPplied To thE input. eDGE-SensItive inPuts reACT to signAl Edges: a pARtIculaR (RisIng or FaLling) edge will CausE a ServIce requEST To be LatchEd; tHe procesSor resets tHE latCH WhEn thE inTerrupt hanDLeR ExecuteS.