Hardware Specifications and Configurations
1-32
System Interrupt Specification
Hardware IRQ
System Function
IRQ0
High precision event timer
IRQ1 Standard
PS/2
Keyboard
IRQ2
Cascaded
IRQ3
AMD EHCI USB Controller (7808, 7808)
IRQ4
AMD High Definition Audio controller(780D)
Ethernet controller(1083)
IRQ6
Diskette drive
IRQ7*
Parallel port
IRQ8
High precision event timer
IRQ9*
Microsoft ACPI-compliant system
IRQ10*
ATI High Definition Audio controller(1314)
AMD AHCI 1.0 SATA controller(7801)
Atheros Network controller(0032)
IRQ11
ATI VGA compatible controller(9809)
AMD USB Controller(7812)
AMD OHCI USB Controller(7807, 7807)
Realtek Device Does Not Fit In Class Code(5209)
IRQ12
ELAN PS/2 Port Smart-Pad
IRQ13
Numeric data processor
IRQ14
Primary IDE channel
IRQ15
Secondary IDE channel
NOTE:
*
Default configuration, audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none.