Electronic specifications

PCI interrupt routing

 

 

 

PCI interrupt routing in PIC mode

 

 

 

 

 

 

 

 

 

 

 

Device

Interrupt A

Interrupt B

Interrupt C

Interrupt D

 

 

 

 

 

 

 

 

USB

PCI IRQ 5

 

 

 

 

 

 

 

 

 

 

 

 

Intel 82540EM

PCI IRQ 1

 

 

 

 

 

 

 

 

 

 

 

 

Rage XL

PCI IRQ 0

 

 

 

 

 

 

 

 

 

 

 

 

PCI slot 1

PCI IRQ 2

PCI IRQ 3

PCI IRQ 2

PCI IRQ 3

 

 

 

 

 

 

 

 

PCI slot 2

PCI IRQ 4

PCI IRQ 6

PCI IRQ 4

PCI IRQ 6

 

 

 

 

 

 

 

 

PCI slot 3

PCI IRQ 7

PCI IRQ 8

PCI IRQ 7

PCI IRQ 8

 

 

 

 

 

 

 

 

PCI slot 4

PCI IRQ 9

PCI IRQ 10

PCI IRQ 9

PCI IRQ 10

 

 

 

 

 

 

 

 

PCI slot 5

PCI IRQ 11

PCI IRQ 12

PCI IRQ 11

PCI IRQ 12

 

 

 

 

 

 

 

PCI interrupt routing in APIC mode

IO APIC Entry

IO APIC

Interrupt Source

 

 

 

INTIN 0

ISA IO APIC

IRQ 0 / INTR

 

 

 

INTIN 1

ISA IO APIC

IRQ 1

 

 

 

INTIN 2

ISA IO APIC

IRQ 2 / SMI

 

 

 

INTIN 3

ISA IO APIC

IRQ 3

 

 

 

INTIN 4

ISA IO APIC

IRQ 4

 

 

 

INTIN 5

ISA IO APIC

IRQ 5

 

 

 

INTIN 6

ISA IO APIC

IRQ 6

 

 

 

INTIN 7

ISA IO APIC

IRQ 7

 

 

 

INTIN 8

ISA IO APIC

IRQ 8

 

 

 

INTIN 9

ISA IO APIC

IRQ 9

 

 

 

INTIN 10

ISA IO APIC

IRQ 10

 

 

 

INTIN 11

ISA IO APIC

IRQ 11

 

 

 

INTIN 12

ISA IO APIC

IRQ 12

 

 

 

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