Interrupt Assignments; Pci Slots - Asus A8N-E User Manual

1.8.3 1.8.3

Interrupt assignments

Interrupt assignments
1.8.3 1.8.3 1.8.3 Interrupt assignments Interrupt assignments Interrupt assignments
Standard interrupt assignments Standard interrupt assignments Standard interrupt assignments Standard interrupt assignments Standard interrupt assignments
I R Q I R Q P r i o r i t y P r i o r i t y
I R Q I R Q I R Q P r i o r i t y P r i o r i t y P r i o r i t y
0 1
1 2
2 –
4 12
5 13
6 14
7 15
8 3
9 4
10 5
11 6
12 7
13 8
14 9
15 10
* These IRQs are usually available for ISA or PCI devices.
IRQ assignments for this motherboard IRQ assignments for this motherboard
IRQ assignments for this motherboard IRQ assignments for this motherboard IRQ assignments for this motherboard
PCI slot 1
PCI slot 2
PCI slot 3
Onboard USB 1.0 controller
Onboard USB 2.0 controller
Onboard LAN1
When using PCI cards on shared slots, ensure that the drivers support
"Share IRQ" or that the cards do not need IRQ assignments. Otherwise,
conflicts will arise between the two PCI groups, making the system
unstable and the card inoperable.
1.8.4 1.8.4

PCI slots

PCI slots
1.8.4 1.8.4 1.8.4 PCI slots PCI slots PCI slots
The PCI slots support cards such as a
LAN card, SCSI card, USB card, and
other cards that comply with PCI
specifications. The figure shows a
LAN card installed on a PCI slot.
A S U S A 8 N - E A S U S A 8 N - E A S U S A 8 N - E
A S U S A 8 N - E A S U S A 8 N - E
S t a n d a r d F u n c t i o n S t a n d a r d F u n c t i o n
S t a n d a r d F u n c t i o n S t a n d a r d F u n c t i o n S t a n d a r d F u n c t i o n
System Timer
Keyboard Controller
Re-direct to IRQ#9
Communications Port (COM1)*
IRQ holder for PCI steering*
Floppy Disk Controller
Printer Port (LPT1)*
System CMOS/Real Time Clock
IRQ holder for PCI steering*
IRQ holder for PCI steering*
IRQ holder for PCI steering*
PS/2 Compatible Mouse Port*
Numeric Data Processor
Primary IDE Channel
Secondary IDE Channel
A A A A A B B B B B C C C C C
shared — —
— shared —
— — shared
shared — —
shared — —
shared — —
D D D D D E E E E E F F F F F G G G G G
— — — —
— — — —
— — — —
— — — —
— — — —
— — — —
H H H H H
—
—
—
—
—
—
1 - 1 9 1 - 1 9 1 - 1 9
1 - 1 9 1 - 1 9