Interrupt Assignments - Asus P5B VM - AiLifestyle Series Motherboard User Manual

1.8.3

Interrupt assignments

Standard interrupt assignments
IRQ
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
PCI1
PCI2
PCIEX16_1
PCIEX4_1
On-board ESATA, SATA_RAID
On-board PRI_IDE
On-board HD Audio (AD1988)
On-board GbEthernet (RTL8111B)
USB 2.0 EHCI#1
USB 2.0 EHCI#2
USB12 UHCI#1
USB34 UHCI#2
USB56 UHCI#3
USB78 UHCI#4
USB910 UHCI#5
SATA1, SATA2 (ICH8)
SATA3, SATA4 (ICH8)
1-24
Priority
1
2
—
12
13
14
15
16
3
4
5
6
7
8
9
10
A
shared
— shared
shared
shared
shared
shared
—
— shared
—
—
—
—
—
shared
shared
—
—
Standard Function
System Timer
Keyboard Controller
Re-direct to IRQ#9
IRQ holder for PCI steering*
Communications Port (COM1)*
IRQ holder for PCI steering*
Floppy Disk Controller
Printer Port (LPT1)*
System CMOS/Real Time Clock
ACPI*
SMBus Controller*
IRQ holder for PCI steering*
PS/2 Compatible Mouse Port*
Numeric Data Processor
IDEIRQ (legacy mode, combined mapped as primary),
SMasterATA1 (Master), SATA3 (Secondary)
IDEIRQ (legacy mode, combined mapped as secondary),
SATA2 (Master), SATA4 (Secondary)
B C D
— — —
— —
— — —
— — —
— — —
— — —
— — —
— —
— — —
— — —
— — —
— — shared
— shared —
— — —
— — —
— shared —
— — shared
E F G
— — —
— — —
— — —
— — —
— — —
— — —
— — shared
— — —
— — —
— — shared
— — —
— — —
— — —
— — —
— — —
— — —
— — —
Chapter 1: Product introduction
H
—
—
—
—
—
—
—
—
shared
—
shared
—
—
—
—
—
—