User guide

986LCD-M Family
KTD-N0837-B
Public
User Manual
Date: 2012-04-17
Page
61 of 91
6.3 Interrupt Usage
IRQ
Onboard system parity errors and IOCHCHK signal activation Onboard Timer 0 Interrupt Onboard Keyboard Interrupt Used for Cascading IRQ8-IRQ15 May be used by onboard Serial Port A May be used by onboard Serial Port B / IrDA Port May be used by onboard Serial Port C May be used by onboard Serial Port D May be used by onboard FireWire controller May be used by onboard Parallel Port May be used by onboard Floppy disk Controller Used by onboard Real Time Clock Alarm May be used by onboard P/S 2 support Used for Onboard co-processor support May be used by primary harddisk controller May be used by secondary harddisk controller May be used for SATA RAID controller May be used for onboard Sound System May be used for PCI Express Root Port May be used by onboard USB controller May be used by onboard Ethernet controller 1 May be used by onboard Ethernet controller 2 May be used by onboard Ethernet controller 3 May be used by onboard VGA Controller May be used by onboard SMBus Controller Available on PCI slots as IRQA-IRQD depending on BIOS selections
Notes
NMI
•
IRQ0
•
IRQ1
•
IRQ2
•
IRQ3
•
•
1, 2
IRQ4
•
•
1, 2
IRQ5
•
1, 2
IRQ6
•
•
1, 2
IRQ7
•
•
1, 2
IRQ8
•
IRQ9
•
1, 2
IRQ10
•
•
1, 2
IRQ11
•
•
1, 2
IRQ12
•
•
1
IRQ13
•
IRQ14
•
•
1
IRQ15
•
•
1
IRQ16
•
•
•
•
•
•
3
IRQ17
•
•
3
IRQ18
•
•
•
3
IRQ19
•
•
3
IRQ20
3
IRQ21
3
IRQ22
3
IRQ23
•
3
IRQ24
3
IRQ25
3
IRQ26
3
Notes:
1. Availability of the shaded IRQs depends on the setting in the BIOS. According to the PCI Standard,
PCI Interrupts IRQA-IRQD can be shared.
2. These interrupt lines are managed by the PnP handler and are subject to change during system
initialisation.
3. IRQ16 to IRQ26 are APIC interrupts