Intel Desktop Boards D865GRH Product Guide
Interrupts
Table 37. | 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 |
| Floppy 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.
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