System interrupt specifications

Hardware IRQ

System function

 

 

IRQ0

System timer

 

 

IRQ1

Standard 101-/102-Key or Microsoft® Natural Keyboard

 

 

IRQ2

Cascaded

 

 

IRQ3

Intel 82801DB/DBM USB2 Enhanced Host Controller—24CD

 

 

IRQ4

COM1

 

 

IRQ5*

Conexant AC—Link Audio Intel 82801DB/DBM SMBus Controller—24C3 Data Fax

 

Modem with SmartCP

 

 

IRQ6

Diskette drive

 

 

IRQ7*

Parallel port

 

 

IRQ8

System CMOS/real-time clock

 

 

IRQ9*

Microsoft ACPI-compliant system

 

 

IRQ10*

Intel USB UHCI controller—24C2

 

Intel 82852/82855 GM/GME Graphic Controller

 

Realtek RTL8139 Family PCI Fast Ethernet Controller

 

 

IRQ11

Intel USB EHCI controller—24CD

 

Intel USB UHCI controller—24C4

 

Intel USB UHCI controller—24C7

 

Intel Pro/Wireless 2200BG

 

TI OHCI 1394 host controller

 

TI PCI1410 CardBus controller

 

 

IRQ12

Synaptics PS/2 TouchPad

 

 

IRQ13

Numeric data processor

 

 

IRQ14

Primary IDE channel

 

 

IRQ15

Secondary IDE channel

*Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none.

NOTE: ExpressCards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, or IRQ15. Either the infrared or the serial port may assert IRQ3 or IRQ4.

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HP FN023UAABA, AW389USABA manual System interrupt specifications, Hardware IRQ System function

AW389USABA, FN023UAABA specifications

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