3 interrupt assignments, Standard interrupt assignments, Irq assignments for this motherboard – Asus Motherboard P5B-E User Manual
Page 43
ASUS P5B-E
2-19
2.5.3
Interrupt assignments
Standard interrupt assignments
IRQ
Priority
Standard Function
0
1
System Timer
1
2
Keyboard Controller
2
—
Re-direct to IRQ#9
3
12
IRQ holder for PCI steering*
4
13
Communications Port (COM1)*
5
14
IRQ holder for PCI steering*
6
15
Floppy Disk Controller
7
16
Printer Port (LPT1)*
8
3
System CMOS/Real Time Clock
9
4
ACPI*
10
5
SMBus Controller*
11
6
IRQ holder for PCI steering*
12
7
PS/2 Compatible Mouse Port*
13
8
Numeric Data Processor
14
9
IDEIRQ Compatible mode, Mapped as
Primary Channel/Master-SATA1/Slave-SATA3
15
10
IDEIRQ Compatible mode, Mapped as
Secondary Channel/Master-SATA2/Slave-SATA4
* These IRQs are usually available for PCI devices.
IRQ assignments for this motherboard
A
B
C
D
E
F
G
H
PCI slot 1
—
—
—
— shared —
—
—
PCI slot 2
—
—
—
—
— shared —
—
PCI slot 3
—
—
—
—
—
— shared —
PCIEX16_1
shared —
—
—
—
—
—
—
PCIEX1_1
shared —
—
—
—
—
—
—
PCIEX1_2
— shared —
—
—
—
—
—
PCIEX1_3
—
— shared —
—
—
—
—
GbEthernet (Attansic L1)
—
—
— shared —
—
—
—
ESATA, SATA_RAID
shared —
—
—
—
—
—
—
PRI_IDE (JMicron363)
shared —
—
—
—
—
— shared
IEEE 1394a (VIA 6307)
—
—
—
—
— shared —
—
HD Audio (ADI1988A)
—
—
—
—
—
— shared —
USB 2.0 EHCI#1
—
—
—
—
—
—
— shared
USB 2.0 EHCI#2
—
— shared —
—
—
—
—
USB12 OBCI#1
—
—
—
—
—
—
— shared
USB34 OBCI#2
—
—
—
—
—
— shared —
USB56 OBCI#3
—
— shared —
—
—
—
—
USB78 OBCI#4
shared
—
—
—
—
—
—
USB910 OBCI#5
— shared —
—
—
—
—
SATA1,2, 3, 4, 5, 6 (ICH8)
—
—
— shared —
—
—
—