Asus P5KPL-AM User Manual - Page 34

Interrupt assignments - ps motherboard

Page 34 highlights

1.8.3 Interrupt assignments Standard interrupt assignments IRQ Priority 0 1 1 2 2 - 3 10 4 11 5 12 6 13 7 3 8 4 9 5 10 6 11 7 12 8 13 9 Standard Function System Timer Keyboard Controller Re-direct to IRQ#9 Communications Port (COM1) IRQ holder for PCI steering* Standard Floppy Disk Controller Printer Port (LPT1) System CMOS/Real Time Clock IRQ holder for PCI steering* IRQ holder for PCI steering* IRQ holder for PCI steering* PS/2 Compatible Mouse Port Numeric Data Processor Primary IDE Channe * These IRQs are usually available for PCI devices. IRQ assignments for this motherboard A B C D E PCI1 - - - shared - PCI2 shared - - -- PCIEX16_1 shared - - -- PCIEX1_1 shared - - -- Onboard USB controller 1 - - - -- Onboard USB controller 2 - - - shared - Onboard USB controller 3 - - shared - - Onboard USB controller 4 shared - - -- Onboard USB 2.0 controller - - - -- Onboard HD audio shared - - -- Onboard LAN - Used - -- FGH shared shared --- --- 1-22 Chapter 1: Product introduction

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1-22
Chapter 1: Product introduction
1.8.3
Interrupt assignments
* These IRQs are usually available for PCI devices.
Standard interrupt assignments
IRQ
Priority
Standard Function
0
1
System Timer
1
2
Keyboard Controller
2
Re-direct to IRQ#9
3
10
Communications Port (COM1)
4
11
IRQ holder for PCI steering*
5
12
Standard Floppy Disk Controller
6
13
Printer Port (LPT1)
7
3
System CMOS/Real Time Clock
8
4
IRQ holder for PCI steering*
9
5
IRQ holder for PCI steering*
10
6
IRQ holder for PCI steering*
11
7
PS/2 Compatible Mouse Port
12
8
Numeric Data Processor
13
9
Primary IDE Channe
IRQ assignments for this motherboard
A
B
C
D
E
F
G
H
PCI1
shared
PCI2
shared
PCIEX16_1
shared
PCIEX1_1
shared
Onboard USB controller 1
shared
Onboard USB controller 2
shared
Onboard USB controller 3
shared
Onboard USB controller 4
shared
Onboard USB 2.0 controller
shared
Onboard HD audio
shared
Onboard LAN
Used