Interrupt Assignments - Asus P5Q EM - DO Motherboard - Micro ATX User Manual

1.8.3

Interrupt assignments

IRQ Priority
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
* These IRQs are usually available for PCI devices.
IRQ assignments for this motherboard
1394 (FW3227)
LAN (8111C)
Marvell 6102
PCIEX16_1
PCIEX1_1
PCIEX1_2
PCI1
USB controller 1
USB controller 2
USB controller 3
USB controller 4
USB controller 5
USB controller 6
USB 2.0 controller 1
USB 2.0 controller 2
SATA controller 1
SATA controller 2
1-26
Standard function
1 System timer
2 Keyboard controller
– Re-direct to IRQ#9
11 IRQ holder for PCI steering*
12 Communications port (COM1)*
13 IRQ holder for PCI steering*
14 Floppy disk controller
15 IRQ holder for PCI steering*
3 System CMOS/Real Time Clock
4 IRQ holder for PCI steering*
5 IRQ holder for PCI steering*
6 IRQ holder for PCI steering*
7 PS/2 compatible mouse port*
8 Numeric data processor
9 IRQ holder for PCI steering*
10 IRQ holder for PCI steering*
A B
– –
– shared
shared –
shared –
shared –
– shared
shared –
– –
– –
– –
shared –
shared
– –
– –
– –
– –
– –
C D E
– shared –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– shared –
shared – –
– – –
– – –
– – –
– – –
shared – –
shared – –
– shared –
Chapter 1: Product introduction
F G H
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – used
– – –
– – –
– – –
– – –
used – –
– – shared
– – –
– – –
– – –