Asus NCL-DS1R1 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 ICH5 IDE Controller ICH5 SATA Controller ICH5 SMBus Controller ICH5 USB UHCI Controller #1 ICH5 USB UHCI Controller #1 ICH5 USB 2.0 EHCI Controller AIC7902 Zero Channel RAID Socket ATI RAGE XL INTA INTB INTC PIRQC# PIRQC# PIRQB# PIRQA# PIRQD# PIRQH# PXH2_A_0 PXH2_A_2 PIRQB# PXH2_A_1 INTD REQ# GNT# PXH2_A_0 PXH2_A_0 PXH2_A_1 PXH2_A_1 REQ1# GNT1# PCI Slots PCIX Slot 1 2U Riser Slot 1 2U Riser Slot 2 2U Riser Slot 3 PXH1_B_0 PXH1_B_0 PXH1_B_2 PXH1_B_3 PXH1_B_1 PXH1_B_2 PXH1_B_1 PXH1_B_2 PXH1_B_3 PXH1_B_0 PXH1_B_0 PXH1_B_1 PXH1_B_3 PXH1_B_0 PXH1_B_0 PXH1_B_3 PXH1_B_0 PXH1_B_0 PXH1_B_1 PXH1_B_1 PXH1_B_1 PXH1_B_2 PXH1_B_2 PXH1_B_2 (Continued on the next page) 2-18 Chapter 2: Hardware information

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2-18
2-18
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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#
ICH5 IDE Controller
PIRQC#
ICH5 SATA Controller
PIRQC#
ICH5 SMBus Controller
PIRQB#
ICH5 USB UHCI Controller #1
PIRQA#
ICH5 USB UHCI Controller #1
PIRQD#
ICH5 USB 2.0 EHCI Controller
PIRQH#
AIC7902
PXH2_A_0
PXH2_A_1
PXH2_A_0 PXH2_A_0
Zero Channel RAID Socket
PXH2_A_2
PXH2_A_1 PXH2_A_1
ATI RAGE XL
PIRQB#
REQ1#
GNT1#
PCI Slots
PCI Slots
PCI Slots
PCI Slots
PCI Slots
PCIX Slot 1
PXH1_B_0
PXH1_B_1
PXH1_B_2
PXH1_B_3 PXH1_B_0 PXH1_B_0
2U Riser Slot 1
PXH1_B_0
PXH1_B_1
PXH1_B_2
PXH1_B_3 PXH1_B_0 PXH1_B_0
2U Riser Slot 2
PXH1_B_2
PXH1_B_3
PXH1_B_0
PXH1_B_1 PXH1_B_1 PXH1_B_1
2U Riser Slot 3
PXH1_B_3
PXH1_B_0
PXH1_B_1
PXH1_B_2 PXH1_B_2 PXH1_B_2
(Continued on the next page)