System interrupt specifications

Hardware IRQ

System function

 

 

IRQ0

System timer

 

 

IRQ1

Standard 101-/102-Key or Microsoft® Natural PS/2 Keyboard

 

 

IRQ8

System CMOS/real-time clock

 

 

IRQ9 *

Microsoft ACPI-compliant system

 

 

IRQ12

Synaptics PS/2 TouchPad

 

 

IRQ13

Numeric data processor

 

 

IRQ14

Primary IDE channel

 

 

IRQ15

Intel® 82801G (ICH7 Family) SMBus Controller—27DA

 

 

IRQ16

Broadcom 802.11b/g WLAN no. 2

 

Intel 82801G (ICH7 Family) PCI Express Root Port—27D0

 

Intel 82801G (ICH7 Family) USB Universal Host Controller—27CB

 

Microsoft UAA Bus Driver for High Definition Audio

 

Mobile Intel 945 Express Chipset Family

 

 

IRQ17

Intel 82801G (ICH7 Family) PCI Express Root Port—27D2

 

 

IRQ18

Intel 82801G (ICH7 Family) USB Universal Host Controller—27CA

 

 

IRQ19

Intel 82801G (ICH7 Family) USB Universal Host Controller—27C9

 

 

IRQ23

Intel 82801G (ICH7 Family) USB Universal Host Controller—27C8

 

Intel 82801G (ICH7 Family) USB2 Enhanced Host Controller—27CC

 

 

* Default configuration

 

 

 

80 Chapter 6 Specifications