HP Vectra XE320 hp vectra xe320, technical reference manual - Page 35

PCI Interrupt Request Lines

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BIOS Overview PCI Interrupt Request Lines PCI devices generate interrupt requests using up to eight PCI interrupt request lines. PCI interrupts can be shared; several devices can use the same interrupt. However, optimal system performance is reached when minimizing the sharing of interrupts. Devices AGP PCI1 PCI2 PCI3 AC97 Internal LAN USB controller 1 USB controller 2 SMBus PIRQA INTA INTC PIRQB INTB INTD Chipset PCI INT lines PIRQC PIRQD PIRQE PIRQF INTA INTB INTD INTC INTA INTD PIRQG INTB INTA PIRQH INTC INTB XE320 product description 35

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BIOS Overview
XE320 product description
35
PCI Interrupt Request Lines
PCI devices generate interrupt requests using up to eight PCI interrupt request lines. PCI interrupts can
be shared; several devices can use the same interrupt. However, optimal system performance is reached
when minimizing the sharing of interrupts.
Devices
AGP
PCI1
PCI2
PCI3
AC97
Internal
LAN
USB
controller
1
USB
controller
2
SMBus
Chipset
PCI
INT
lines
PIRQA
INTA
INTC
PIRQB
INTB
INTD
±
±
PIRQC
INTA
PIRQD
INTB
±
PIRQE
INTD
INTC
±
PIRQF
INTA
INTD
PIRQG
INTB
INTA
PIRQH
INTC
INTB
±