C.3 <system irq and dma resource, C3.1 irq – Intel LV-671 User Manual
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LV-671 User’s Manual System Resource
System IRQ and DMA Resource
56
C.3 <System IRQ and DMA Resource>
C3.1 IRQ
IRQ Number
Device
0
System Clock
1
Standard 101/102-Key or Microsoft Natural Keyboard
2
Programmable Interrupt Controller
3
Communication Port (COM2)
4
Communication Port (COM1)
5
Realtek AC'97 Audio
5
Intel(R) 82801DB/DBM SMBus Controller - 24C3
5
ACPI IRQ Holder for PCI IRQ Steering
6
Standard Floppy Controller
7
Printer Port (LPT1)
8
System CMOS/ Real Time Clock
9
Ricoh RL5C475 CardBus Controller
9
ACPI IRQ Holder for PCI IRQ Steering
9
SCI IRQ used by ACPI bus
10
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C7
10
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C2
10
Intel(R) 82852/82855 GM/GME Graphics Controller
10
ACPI IRQ Holder for PCI IRQ Steering
10
ACPI IRQ Holder for PCI IRQ Steering
11
Intel(R) PRO/1000 MT Network Connection
11
Intel USB 2.0 Enhanced Host Controller
11
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C4
11
ACPI IRQ Holder for PCI IRQ Steering
11
ACPI IRQ Holder for PCI IRQ Steering
12
PS/2 Compatible Mouse Port
13
Numeric Data Processor
14
Primary IDE controller (dual fifo)
14
Intel(R) 82801DB Ultra ATA Storage Controller - 24CB
15
Secondary IDE controller (dual fifo)
15
Intel(R) 82801DB Ultra ATA Storage Controller - 24CB