
ASUS P5M2 Series
2-1
2.5.3 Interrupt assignments
IRQ
Priority
Standard Function
0
1
System Timer
1
2
Keyboard Controller
2
—
Re-direct to IRQ#9
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
* These IRQs are usually available for ISA or PCI devices.
Description
INTA
INTB
INTC
INTD
REQ#
GNT#
PATA Controller
PIRQA#
—
—
—
—
—
SATA Controller
PIRQD#
—
—
—
—
—
SMBus Controller
PIRQB#
—
—
—
—
USB1 UHCI Controller #1
PIRQH#
—
—
—
—
USB1 UHCI Controller #2
PIRQD#
—
—
—
—
—
USB 2.0 EHCI Controller
PIRQH#
—
—
—
—
—
BMC5721 #1
PIRQA#
—
—
—
—
—
BMC5721 #2
PIRQB#
—
—
—
—
—
ATI ES1000
PIRQD#
—
—
—
REQ1#
GNT1#
LSI SAS 1068
PXIRQ2
—
—
—
PXREQ2 PXGNT2
PCI Express Slot 1 (x16)
PIRQA#
—
—
—
—
—
PCIX Slot 2 (64-bit)
PXIRQ0
PXIRQ1
PXIRQ2
PXIRQ3
PXREQ0 PXGNT0
PCIX Slot 3 (64-bit)
PXIRQ4
PXIRQ5
PXIRQ6
PXIRQ7
PXREQ1 PXGNT1
PCI Slot 4 (32-bit)
PIRQE#
PIRQF#
PIRQG#
PIRQH#
REQ0#
GNT0#
Standard interrupt assignments
PCI Bus Number, IDSEL, and IRQ assignments
Summary of Contents for P5M2
Page 1: ...Motherboard P5M2 Series P5M2 P5M2 SAS ...
Page 14: ...xiv ...
Page 26: ...2 Chapter 2 Hardware information 2 2 3 Motherboard layout P5M2 Layout ...
Page 27: ...ASUS P5M2 Series 2 P5M2 SAS Layout ...
Page 185: ...6 22 Chapter 6 Driver installation ...
Page 187: ...ASUS P5M2 Series Chapter summary A A 1 P5M2 series block diagram A 1 ...