AmITX-RZ-G
System Resources
37
7.3.2.
IRQ Lines APIC Mode
Table 10: IRQ Lines APIC Mode
IRQ#
Typical Interrupt Resource
Connected to Pin
Available
0 Counter
0
N/A
No
1 Keyboard
Controller
N/A
No
2 Cascade
Interrupt
N/A
No
3
Serial Port 2 (COM2)
IRQ3 via SERIRQ/PIRQ
No
4
Serial Port 1 (COM1)
IRQ4 via SERIRQ/PIRQ
No
5 Generic
N/A
No
6
Serial Port 3/4/5/6 (COM3/4/5/6)
IRQ6 via SERIRQ/PIRQ
No
7 Generic
N/A
No
8 Real-Time
clock
N/A
No
9 Cascade
Interrupt
N/A
No
10 Generic
N/A
No
11 Generic
N/A
No
12
PS/2 Mouse
IRQ12 via SERIRQ/PIRQ
No
13 Math
Processor
N/A
No
14 Generic
N/A
No
15 Generic
N/A
No
16 ACPI-Compliant
System
N/A
Yes
Note (1):
These IRQs can be used for PCI devices when onboard device is disabled.
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