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5.4 Interrupts list
Interrupt pin
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
IRQ16
IRQ17
IRQ18
IRQ19
IRQ20
IRQ21
IRQ22
IRQ23
MSI
< NOTE >
・The above list is valid when the APIC is enabled.
・The IRQ numbers of PCI slots are valid when the INT A terminal is used.
・The IRQ numbers are fixed and you cannot change the settings shown above.
・Even under APIC-capable OS, APIC-enabled IRQ numbers are assigned only
while the corresponding device is active. In other cases, APIC-disabled IRQ
numbers are assigned instead(see the next page).
Table 5-12 Interrupts list
Cascade (from 8259 #1)
Not used
Timer
Serial port 2 (COM2) : B
Serial port 1 (COM1) : A
Not used
Not used
Not used
Real-time clock
SCI, SMBus
Not used
Not used
Not used
Coprocessor
Not used
Not used
PCI Express slot1, PCI Express slot2,
PCI slot6, SATA controller
PCI Express slot3, PCI slot7
PCI Express slot4
PCI slot5
Not used
Not used
Not used
Not used
xHCI, Onboard Video, Onboard LAN
5-9
Description
5. SPECIFICATION
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