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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