Intel Desktop Board D815EEA Product Guide
72
Interrupts
Table 30.
Interrupts
IRQ
System Resource
NMI
I/O channel check
0
Reserved, interval timer
1
Reserved, keyboard buffer full
2
Reserved, cascade interrupt from slave PIC
3
COM2* (user available if COM2 is not present)
4
COM1*
5
LPT2 (Plug and Play option) / audio / user available
6
Diskette drive controller
7
LPT1*
8
Real time clock
9
User available
10
User available
11
User available
12
Onboard mouse port (if present, else user available)
13
Reserved, 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.
