Asus NCLV-DS2 User Manual - Page 38

Interrupt assignments

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2.5.3 Interrupt assignments Standard interrupt assignments IRQ Priority Standard Function 0 1 1 2 2 - 3 11 4 12 5 13 6 14 7 15 8 3 9 4 10 5 11 6 12 7 13 8 14 9 15 10 System Timer Keyboard Controller Re-direct to IRQ#9 Communications Port (COM2)* Communications Port (COM1)* IRQ holder for PCI steering* Floppy Disk Controller Printer Port (LPT1)* System CMOS/Real Time Clock IRQ holder for PCI steering* IRQ holder for PCI steering* IRQ holder for PCI steering* PS/2 Compatible Mouse Port* Numeric Data Processor Primary IDE Channel Secondary IDE Channel * These IRQs are usually available for ISA or PCI devices. PCI Bus Number, IDSEL, and IRQ assignments Description IDE Controller SATA Controller SMBus Controller USB UHCI Controller #1 USB UHCI Controller #2 USB 2.0 EHCI Controller AIC7901 SCSI controller ATI RAGE XL PCIX Slot 1 PCIX Slot 2 PCI Express Slot3 PCIX Slot 4 PCIX Slot 5 INTA PIRQC# PIRQC# PIRQB# PIRQA# PIRQD# PIRQH# PIRQB# PXIRQ0# PXIRQ3# INTB INTC PXIRQ2# PXIRQ1# PXIRQ1# PXIRQ2# PXIRQ0# INTD REQ# GNT# PXIRQ3# PXIRQ2# X_REQ3# REQ2# X_IRQ0# X_IRQ1# X_GNT3# GNT2# X_IRQ0# X_IRQ1# PIRQE# PIRQG# PIRQF# PIRQH# PIRQG# PIRQE# PIRQH# PIRQF# REQ0# REQ1# GNT0# GNT1# 2-18 Chapter 2: Hardware information

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2-18
2-18
2-18
2-18
2-18
Chapter 2: Hardware information
Chapter 2: Hardware information
Chapter 2: Hardware information
Chapter 2: Hardware information
Chapter 2: Hardware information
2.5.3
2.5.3
2.5.3
2.5.3
2.5.3
Interrupt assignments
Interrupt assignments
Interrupt assignments
Interrupt assignments
Interrupt assignments
Standard interrupt assignments
Standard interrupt assignments
Standard interrupt assignments
Standard interrupt assignments
Standard interrupt assignments
IRQ
IRQ
IRQ
IRQ
IRQ
Priority
Priority
Priority
Priority
Priority
Standard Function
Standard Function
Standard Function
Standard Function
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.
PCI Bus Number, IDSEL, and IRQ assignments
PCI Bus Number, IDSEL, and IRQ assignments
PCI Bus Number, IDSEL, and IRQ assignments
PCI Bus Number, IDSEL, and IRQ assignments
PCI Bus Number, IDSEL, and IRQ assignments
Description
Description
Description
Description
Description
INTA
INTA
INTA
INTA
INTA
INTB
INTB
INTB
INTB
INTB
INTC
INTC
INTC
INTC
INTC
INTD
INTD
INTD
INTD
INTD
REQ#
REQ#
REQ#
REQ#
REQ#
GNT#
GNT#
GNT#
GNT#
GNT#
IDE Controller
PIRQC#
SATA Controller
PIRQC#
SMBus Controller
PIRQB#
USB UHCI Controller #1
PIRQA#
USB UHCI Controller #2
PIRQD#
USB 2.0 EHCI Controller
PIRQH#
AIC7901 SCSI controller
PXIRQ2#
X_REQ3#
X_GNT3#
ATI RAGE XL
PIRQB#
REQ2#
GNT2#
PCIX Slot 1
PXIRQ0#
PXIRQ1#
PXIRQ2#
PXIRQ3#
X_IRQ0#
X_IRQ0#
PCIX Slot 2
PXIRQ3#
PXIRQ1#
PXIRQ0#
PXIRQ2#
X_IRQ1#
X_IRQ1#
PCI Express Slot3
PCIX Slot 4
PIRQE#
PIRQF#
PIRQG#
PIRQH#
REQ0#
GNT0#
PCIX Slot 5
PIRQG#
PIRQH#
PIRQE#
PIRQF#
REQ1#
GNT1#