3 interrupt assignments, Standard interrupt assignments, Pci bus number, idsel, and irq assignments – Asus KFN5-D SLI User Manual
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ASUS KFN5-D SLI
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2.5.3 Interrupt assignments
Standard interrupt assignments
* These IRQs are usually available for ISA or PCI devices.
IRQ
Priority
Standard Function
0
1
System Timer
1
2
Keyboard Controller
2
–
Programmable interrupt
3
11
Communications Port (COM2)
4
12
Communications Port (COM1)*
5
13
IRQ holder for PCI steering*
6
14
Floppy Disk Controller
7
15
Printer Port (LPT1)*
8
3
System CMOS/Real Time Clock
9
4
IRQ holder for PCI steering*
10
5
IRQ holder for PCI steering*
11
6
IRQ holder for PCI steering*
12
7
PS/2 Compatible Mouse Port*
13
8
Numeric Data Processor
14
9
Primary IDE Channel
15
10
Secondary IDE Channel
Description
INTA
INTB
INTC
INTD
REQ# GNT#
PCI slot 1
IRQF#
REQ0# GNT0#
PCI E x16 slot
IRQA#
PCI E x1 slot
IRQA#
PCI E x16 slot
IRQA#
Onboard USB controller 1
IRQA#
Onboard USB controller 2
IRQF#
Onboard SATA controller 1
IRQF#
Onboard SATA controller 2
IRQ5#
Onboard SATA controller 3
IRQB#
Onboard PCI E X1 LAN1
IRQ5#
Onboard PCI E X1 LAN2
IRQF#
Onboard 1394
IRQB#
REQ2# GNT2#
PCI Bus Number, IDSEL, and IRQ assignments