Asus TRL-DLS TRL-DLS User Manual - Page 22

ISA Interrupt IRQ Assignments, PCI Interrupt IRQ Assignments

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3. HARDWARE SETUP The following table lists the default IRQ assignments for standard PC devices. Use this table when configuring your system and for resolving IRQ conflicts. ISA Interrupt (IRQ) Assignments ISA INT ISA 00 ISA 01 ISA 02 ISA 03* ISA 04* ISA 05* ISA 06 ISA 07* ISA 08 ISA 09* ISA 10* ISA 11* ISA 12* ISA 13 ISA 14* ISA 15* Priority 1 2 N/A 11 12 13 14 15 3 4 5 6 7 8 9 10 Standard Function System Timer Keyboard Controller Programmable Interrupt Communications Port (COM2) Communications Port (COM1) Sound Card (sometimes LPT2) Floppy Disk Controller Printer Port (LPT1) System CMOS/Real Time Clock ACPI Mode when used 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 PCI devices. PCI Interrupt (IRQ) Assignments PCI Slot 1 (64-bit) 2 (64-bit) 3 (64-bit) 4 (64-bit) 5 (32-bit) 6 (32-bit) PCI INTA PCI 1 PCI 4 PCI 5 PCI 8 PCI 9 PCI 10 PCI INTB PCI 12 PCI 15 PCI 18 PCI 21 PCI 24 PCI 27 PCI INTC PCI 13 PCI 16 PCI 19 PCI 22 PCI 25 PCI 28 PCI INTD PCI 14 PCI 17 PCI 20 PCI 23 PCI 26 PCI 29 3. H/W SETUP Expansion Cards 22 ASUS TRL-DLS User's Manual

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ASUS TRL-DLS User’s Manual
3. HARDWARE SETUP
The following table lists the default IRQ assignments for standard PC devices. Use
this table when configuring your system and for resolving IRQ conflicts.
ISA Interrupt (IRQ) Assignments
ISA INT
Priority
Standard Function
ISA 00
1
System Timer
ISA 01
2
Keyboard Controller
ISA 02
N/A
Programmable Interrupt
ISA 03*
11
Communications Port (COM2)
ISA 04*
12
Communications Port (COM1)
ISA 05*
13
Sound Card (sometimes LPT2)
ISA 06
14
Floppy Disk Controller
ISA 07*
15
Printer Port (LPT1)
ISA 08
3
System CMOS/Real Time Clock
ISA 09*
4
ACPI Mode when used
ISA 10*
5
IRQ Holder for PCI Steering
ISA 11*
6
IRQ Holder for PCI Steering
ISA 12*
7
PS/2 Compatible Mouse Port
ISA 13
8
Numeric Data Processor
ISA 14*
9
Primary IDE Channel
ISA 15*
10
Secondary IDE Channel
*These IRQs are usually available for PCI devices.
PCI Interrupt (IRQ) Assignments
PCI Slot
PCI INTA
PCI INTB
PCI INTC
PCI INTD
1 (64-bit)
PCI
1
PCI
12
PCI
13
PCI
14
2 (64-bit)
PCI
4
PCI
15
PCI
16
PCI
17
3 (64-bit)
PCI
5
PCI
18
PCI
19
PCI
20
4 (64-bit)
PCI
8
PCI
21
PCI
22
PCI
23
5 (32-bit)
PCI
9
PCI
24
PCI
25
PCI
26
6 (32-bit)
PCI
10
PCI
27
PCI
28
PCI
29
Expansion Cards
3. H/W SETUP