HP XM600 - Kayak - 128 MB RAM Technical Reference Manual page 109

Interrupt Controllers
The system has an Interrupt controller which is equivalent in function to
that of two 82C59 interrupt controllers. The following table shows how the
interrupts are connected to the APIC controller. The Interrupt Requests
(IRQ) are numbered sequentially, starting with the master controller, and
followed by the slave (both of 82C59 type).
I/O APIC
IRQ
Input
INTIN0 ICH
INTIN1 IRQ1
INTIN2 IRQ0
INTIN3 IRQ3
INTIN4 IRQ4
INTIN5 IRQ5
INTIN6 IRQ6
INTIN7 IRQ7
INTIN8 IRQ8
INTIN9 IRQ9
INTIN10 IRQ10
INTIN11 IRQ11
INTIN12 IRQ12
INTIN13 IRQ13
INTIN14 IRQ14
INTIN15 IRQ15
INTIN16 PCINTA
INTIN17 PCINTB
INTIN18 PCINTC
INTIN19 PCINTD
INTIN20 TFPC IRQ
INTIN21 SCI IRQ
INTIN22 not connected
INTIN23 ICH SMI
(not used)
Interrupt Request Description
Super I/O Keyboard Controller
ICH System Timer
Super I/O - Used by serial port if enabled
Super I/O - Used by serial port if enabled
Free if not used for parallel port or audio
Super I/O - Floppy Disk Controller
Super I/O - LPT1
ICH - RTC
Available for PCI devices
Available for PCI devices
Available for PCI devices
Super I/O - Mouse
Co-processor
ICH - Integrated IDE Controller (primary)
ICH - Integrated IDE Controller (secondary).
5 HP BIOS
BIOS Addresses
109