PCI Interrupt Request Routng
The IRQ, acronym of nterrupt request lne and pronounced I-R-Q, are hardware lnes
over whch devces can send nterrupt sgnals to the mcroprocessor. The PCI IRQ pns
are typcally connected to the PCI bus pns as follows:
PCI Slot1
PCI Slot2
Order1
Order2
Order3
INT E#
INT F#
INT G#
INT H#
INT L#
INT F#
Order4
INT H#
INT G#
En-21