IRQ

interrupt request
IRQ

   (IRQ) The name of an input found on many processors which
   causes the processor to suspend normal instruction execution
   temporarily and to start executing an {interrupt handler}
   routine.  Such an input may be either "{level sensitive}" -
   the {interrupt} condition will persist as long as the input is
   active or "{edge triggered}" - an interrupt is signalled by a
   low-to-high or high-to-low transition on the input.  Some
   processors have several interrupt request inputs allowing
   different priority interrupts.

   (1994-12-08)
    

IRQ
       Interrupt ReQuest