Operation Manual

1-17ASUS P5VDC-TVM
Standard interrupt assignments
IRQ Priority Standard Function
0 1 System Timer
1 2 Keyboard Controller
2 - Re-direct to IRQ#9
3 11 Communications Port (COM2)*
4 12 Communications Port (COM1)*
5 13 IRQ holder for PCI steering*
6 14 Floppy Disk Controller
7 15 Printer Port (LPT1)*
8 3 System CMOS/Real Time Clock
9 4 IRQ holder for PCI steering*
10 5 IRQ holder for PCI steering*
11 6 IRQ holder for PCI steering*
12 7 PS/2 Compatible Mouse Port*
13 8 Numeric Data Processor
14 9 Primary IDE Channel
15 10 Secondary IDE Channel
* These IRQs are usu all y a vai lab le for IS A o r P CI dev ice s.
IRQ assignments for this motherboard
When using PCI cards on shared slots, ensure that the drivers support
“Share IRQ” or that the cards do not need IRQ assignments; otherwise,
conicts will arise between the two PCI groups, making the system
unstable and the card inoperable.
A B C D E F G H
PCI slot 1 shared — — — — — — —
PCI slot 2 — shared — — — — — —
PCI slot 3 — — shared — — — —
Onboard USB controller 0-1 shared — — — — — — —
Onboard USB controller 2-3 shared — — — — — — —
Onboard USB controller 4-5 — shared — — — — — —
Onboard USB controller 6-7 — shared — — — — — —
Onboard USB 2.0 controller — — shared — — — — —
Onboard AC `97 Audio — — shared — — — — —
Onboard PCI LAN (10/100 Mbps) — — — — shared — — —
Onboard PCI 1394 — — — — — shared — —
AGP Slot shared — — — — — — —
1.5.3 Interrupt assignments