
System interrupt specifications—AMD  processors
| Hardware IRQ | System function | 
| 
 | 
 | 
| ISA0 | High precision event timer | 
| 
 | 
 | 
| ISA1 | Standard  | 
| 
 | 
 | 
| ISA8 | High precision event timer | 
| 
 | 
 | 
| ISA12 | Alps  | 
| 
 | 
 | 
| ISA13 | Numeric data processor | 
| 
 | 
 | 
| ISA14 | ATA Channel 0 | 
| 
 | 
 | 
| ISA15 | ATA Channel 1 | 
| 
 | 
 | 
| PCI5 | Ricoh OHCI Compliant IEEE 1394 Host Controller | 
| 
 | 
 | 
| PCI7 | Ricoh Memory Stick Controller | 
| 
 | 
 | 
| PCI7 | Ricoh SD/MMC Host Controller | 
| 
 | 
 | 
| PCI7 | Ricoh  | 
| 
 | 
 | 
| PCI7 | SDA Standard Compliant SD Host Controller | 
| 
 | 
 | 
| PC10 | nVidia nForce PCI System Management | 
| 
 | 
 | 
| PC16 | Standard Enhanced PCI to USB Host Controller | 
| 
 | 
 | 
| PC16 | Standard OpenHCD USB Host Controller | 
| 
 | 
 | 
| PC17 | Standard Enhanced PCI to USB Host Controller | 
| 
 | 
 | 
| PC17 | Standard OpenHCD USB Host Controller | 
| 
 | 
 | 
| PC18 | nVidia nForce PCI System Management | 
| 
 | 
 | 
| PC19 | Broadcom 802.11b/g WLAN | 
| 
 | 
 | 
| PCI standard  | |
| 
 | 
 | 
| PC21 | High Definition Audio Controller | 
| 
 | 
 | 
| PC22 | Standard Dual Channel PCI IDE Controller | 
| 
 | 
 | 
| PC23 | nVidia MCP67M | 
| 
 | 
 | 
| PCI standard  | |
| 
 | 
 | 
| nVidia nForce Networking Controller | |
| 
 | 
 | 
System interrupt 
