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Interrupts
NMI
SMI
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Table 4-9.
Interrupts
Channel
Function
Reports parity / System errors
System management
System timer
Keyboard
Cascade for IRQ 8-15
COM 2/serial port 2
COM 1/serial port 1
Parallel port 2
Floppy controller
Parallel port 1
Real time clock
Software redirect to IRQ2
Reserved
Reserved / special features
Reserved / PS/2 mouse
Coprocessor
Hard disk controller
Reserved
Interrupts
4
4-17
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