Interrupts - TRIGEM LI545 User Manual

Interrupts

Interrupts
Interrupts Interrupts Interrupts
C-2
IRQ System Resource
I/O channel check
N M I
0
Interval timer
1 Keyboard
2
Cascade interrupt from slave PIC
3 COM2*
4
COM1*
5
LPT2 (Plug and Play option) / audio (if present, else user available)
6 Floppy drive
7
LPT1*
8 Real time clock
User available
9
10 User available
11 Windows Sound System* / USB (if present, else user available)
Onboard mouse port (if present, else user available)
12
13
Math coprocessor
14 Primary IDE (if present, else user available)
15 Secondary IDE (if present, else user available)
* Default, but can be changed to another IRQ
Motherboard Resources