ADLINK NuPRO-A40H - Manual (Page 92)

78 System Resources
Table B-4: IRQ Lines PIC Mode
Notes:
(1) These IRQs can be used for PCI devices when the onboard device
is disabled. If the IRQ is from ISA, the user must reserve the IRQ for
ISA in the BIOS setup menu.
(2) The BIOS does not open the IRQ 9 setting for the ISA bus.
IRQ Lines APIC Mode
13 Math Processor N/A No
14
Primary IDE controller /
PCI / ISA
IRQ14 via SERIRQ,
IRQ14 at ISA bus
Note (1)
15
Secondary IDE
controller / PCI / ISA
IRQ15 via SERIRQ,
IRQ15 at ISA bus
Note (1)
IRQ#
Typical Interrupt
Resource
Connected to Pin Available
0 Counter 0 N/A No
1 Keyboard controller N/A No
2
Cascade interrupt from
slave PIC
N/A No
3
Serial Port 2 (COM2) /
ISA
IRQ3 via SERIRQ, IRQ3 at
ISA bus
Note (1)
4
Serial Port 1 (COM1) /
ISA
IRQ4 via SERIRQ, IRQ4 at
ISA bus
Note (1)
5
Serial Port 3,4 (COM3
,COM4) /ISA
IRQ5 via SERIRQ, IRQ5 at
ISA bus
Note (1)
6
Serial Port 5 (COM5)/
ISA
IRQ6 via SERIRQ No
7 Parallel port / ISA
IRQ7 via SERIRQ, IRQ7 at
ISA bus
Note (1)
8 Real-time clock N/A No
9 SCI / PCI
IRQ9 via SERIRQ, IRQ9 at
ISA bus
Note (1), (2)
IRQ#
Typical Interrupt
Resource
Connected to Pin Available