Appendix A:

Interrupt (IRQ)

Description

 

 

5

USB

 

 

6

Diskette controller

 

 

7

Parallel

 

 

8

Real-time clock

 

 

9

ACPI SCI

 

 

10

 

 

 

11

 

 

 

12

Mouse controller

 

 

13

System interrupt/FERR

 

 

14

Primary IDE

 

 

15

Secondary IDE

 

 

PCI interrupt routing

PCI interrupt routing in PIC mode

Device

Interrupt A

Interrupt B

Interrupt C

Interrupt D

 

 

 

 

 

Rage XL

-ICH3 P IRQB

 

 

 

 

 

 

 

 

Debug slot

-ICH3 P IRQE

-ICH3 P IRQF

-ICH3 P IRQG

-ICH3 P IRQH

 

 

 

 

 

Intel 82544GC

P1 IRQ 0

 

 

 

 

 

 

 

 

SCSI 7899W

S1 IRQ 0

S1 IRQ 1

 

 

 

 

 

 

 

PCI slot 1

S1 IRQ 4

S1 IRQ 5

S1 IRQ 2

S1 IRQ 3

 

 

 

 

 

PCI slot 2

-S2 IRQ 4

-S2 IRQ 5

-S2 IRQ 6

-S2 IRQ 7

 

 

 

 

 

PCI slot 3

PCI IRQ 0

PCI IRQ 1

PCI IRQ 2

PCI IRQ 3

 

 

 

 

 

PCI slot 4

-P2 IRQ 4

-P2 IRQ 5

-P2 IRQ 6

-P2 IRQ 7

 

 

 

 

 

PCI slot 5

-P2 IRQ 0

-P2 IRQ 1

-P2 IRQ 2

-P2 IRQ 3

 

 

 

 

 

128

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Image 134
Gateway 960 manual PCI interrupt routing, 128, Device Interrupt a Interrupt B Interrupt C Interrupt D