Interrupt request (irq) lines, Pic mode – ADLINK Express-BE User Manual
Page 44
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Page 44
Express-BE
6.4. Interrupt Request (IRQ) Lines
6.4.1. PIC Mode
IRQ#
Typical Intterupt 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 4 / PCI
IRQ3 via SERIRQ
Note (1)
4
Serial Port 3 / PCI
IRQ4 via SERIRQ
Note (1)
5
PCI
IRQ5 via SERIRQ
Note (1)
6
Floppy Drive Controller
IRQ6 via SERIRQ
No
7
PCI
IRQ7 via SERIRQ
Note (1)
8 Real-time
clock
N/A
No
9
SCI / PCI
IRQ9 via SERIRQ
Note (1)
10
Serial Port 1
IRQ10 via SERIRQ
No
11
Serial Port 2
IRQ11 via SERIRQ
No
12
PS/2 Mouse / PCI
IRQ12 via SERIRQ
Note (1)
13 Math
Processor
N/A
No
14
Primary IDE controller / PCI
IRQ14 via SERIRQ
Note (1)
15 PCI
N/A
No
Note (1): These IRQs can be used for PCI devices when onboard device is disabled.