EMX-A55E
26 EMX-A55E User
‟s Manual
2.3.3.3 Standard Interrupt Assignments
* There IRQs are usually available for ISA or PCI device.
IRQ
Priority
Standard Function
0
1
System Timer
1
2
Keyboard Controller
2
-
Redirect to IRQ#9
3
11
IRQ holder for PCI streering*
4
12
Communications Port (COM1)*
5
13
IRQ holder for PCI streering*
6
14
Floppy Disk Controller
7
15
Printer Port (LPT)*
8
3
System CMOS/Rear Time
9
4
IRQ holder for PCI streeing*
10
5
IRQ holder for PCI streeing*
11
6
IRQ holder for PCI streeing*
12
7
PS/2 Compatible Mouse Port*
13
8
Numeric Data Processor
14
9
Primary IDE Channel
15
10
Secondary IDE Channel
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