MSI FUZZY 945GME1, FUZZY 945GM1 manual PCI Configuration, Idsel Clock REQ# / GNT#

System Resources

PCI Configuration

PCI Interrupt Request Routing

The IRQ, acronym of interrupt request line and pronounced I-R-Q, are hardware lines over which devices can send interrupt signals to the microprocessor. The PCI IRQ pins are typically connected to the PCI bus pins as follows:

DEVICE	MCP1 INT Pin	IDSEL	CLOCK	REQ# / GNT#
PCI Slot	PIRQA	AD17	PCICLK 0	REQ#0 / GNT#0
Mini PCI Slot	PIRQB	AD18	PCICLK 1	REQ#1 / GNT#1
LAN1	PIRQC	AD21	CLKLAN 1	REQ#2 / GNT#2
LAN2	PIRQD	AD22	CLKLAN 2	REQ#3 / GNT#3

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