Interrupts - Intel D850EMD2 Product Manual

Intel Desktop Boards D850EMD2 and D850EMV2 Product Guide

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*
4 COM1*
5 LPT2 (Plug and Play option) / **
6 Diskette drive controller
7 LPT1*
8 Real time clock
9 **
10 **
11 **
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.
** Dynamically allocated for all PCI/AGP devices and slots.
68