| Interrupt Level Assignments |
|
|
IRQ | System Resource |
|
|
NMI | I/O channel check |
00 | Reserved, interval timer |
01 | Reserved, keyboard controller |
02 | Reserved, cascade interrupt from slave PIC |
03 | COM2* |
04 | COM1* |
05 | LPT2 (Plug and Play option)/audio/user available |
06 | Diskette drive |
07 | LPT1* |
08 | |
09 | Reserved |
10 | USB/user available |
11 | Windows Sound System*/user available |
12 | PS/2 mouse port (if present, else user available) |
13 | Reserved, numeric processor |
14 | Primary IDE (if present, else user available) |
15 | Secondary IDE (if present, else user available) |
| |
* Default; setting can be changed. | |
| DMA Assignments |
|
|
DMA | Resource |
|
|
00 | Audio |
01 | Audio/parallel port |
02 | Diskette drive |
03 | ECP parallel port/audio |
04 | Reserved, cascade channel |
05 | Available |
06 | Available |
07 | Available |
|
|
