Interrupt Request (Irq) Lines - ADLINK Technology ETX Series User Manual

7.3

Interrupt Request (IRQ) Lines

PIC Mode
IRQ# Typical Interrupt Resource
0 Counter 0
1 Keyboard controller
2 Cascade interrupt from slave PIC
3 Serial Port 2 (COM2) / PCI
4 Serial Port 1 (COM1) / PCI
5 Parallel Port 2 (LPT2) / PCI
6 Floppy Drive Controller
7 Parallel Port 1 (LPT1) / PCI
8 Real-time clock
9 SCI / PCI
10 PCI
11 PCI
12 PS/2 Mouse / PCI
13 Math Processor
14 Primary IDE controller / PCI
15 Secondary IDE controller / PCI
(1) These IRQs can be used for PCI devices when onboard device is disabled.
APIC Mode
IRQ# Typical Interrupt Resource
0 Counter 0
1 Keyboard controller
2 Cascade interrupt from slave PIC
3 Serial Port 2 (COM2) / PC
4 Serial Port 1 (COM1) / PCI
5 Parallel Port 2 (LPT2) / PCI
6 Floppy Drive Controller
7 Parallel Port 1 (LPT1) / PCI / ISA
8 Real-time clock
9 SCI / PCI
10 PCI
11 PCI
12 PS/2 Mouse / PCI
13 Math Processor
14 Primary IDE controller / PCI
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Connected to Pin
N/A
N/A
N/A
IRQ3 via SERIRQ
IRQ4 via SERIRQ
IRQ5 via SERIRQ
IRQ6 via SERIRQ
IRQ7 via SERIRQ,
N/A
IRQ9 via SERIRQ
IRQ10 via SERIRQ
IRQ11 via SERIRQ
IRQ12 via SERIRQ
N/A
IRQ14 via SERIRQ
IRQ15 via SERIRQ
Connected to Pin
N/A
N/A
N/A
IRQ3 via SERIRQ
IRQ4 via SERIRQ
IRQ5 via SERIRQ
IRQ6 via SERIRQ
IRQ7 via SERIRQ
N/A No
IRQ9 via SERIRQ
IRQ10 via SERIRQ
IRQ11 via SERIRQ
IRQ12 via SERIRQ
N/A
IRQ14 via SERIRQ
ETX-CV User's Manual
Available
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Available
No
No
No
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