IRQ Assignment Map
Interrupt Channel | Function (Hardware) |
|
|
IRQ10 | SMBus(PIRQB#) |
| AC’97 Audio(PIRQB#) |
| AC’97 MODEM(PIRQB#) |
| USB 1.1 UHCI (PIRQC#, PIRQD#) |
| LAN(PIRQD#) |
| CardBus(PIRQB#) |
| IEEE1394(PIRQC#)/PCI Candidate |
|
|
IRQ11 | VGA(PRIQA#) |
| FlashMemory(PIRQF#) |
| USB 1.1 UHCI (PIRQA#) |
| USB 2.0 EHCI(PIRQH#)/PCI Candidate |
|
|
IRQ12 | Touchpad (Auxiliary device) |
|
|
IRQ13 | Numeric data processor |
|
|
IRQ14 | 1st EIDE device (hard disk) |
|
|
IRQ15 | 2nd EIDE device (optical drive) |
|
|
DMA Channel Assignment
DMA Channel | Function (Hardware) |
|
|
DRQ0 | Reserved |
|
|
DRQ1 | IrDA FIR |
|
|
DRQ2 | Floppy |
|
|
DRQ3 | Reserved |
|
|
DRQ4 | DMA controller |
|
|
DRQ5 | Reserved |
|
|
DRQ6 | Reserved |
|
|
DRQ7 | Reserved |
|
|
26 | Chapter 1 |