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Standard interrupt assignments, Irq assignments for this motherboard – Asus A8N-E User Manual

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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

1 - 1 9

1 - 1 9

1 - 1 9

1 - 1 9

1 - 1 9

1.8.3

1.8.3

1.8.3

1.8.3

1.8.3

Interrupt assignments

Interrupt assignments

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

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

P r i o r i t y

P r i o r i t y

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

0

1

System Timer

1

2

Keyboard Controller

2

Re-direct to IRQ#9

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 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

A

A

A

A

A

B

B

B

B

B

C

C

C

C

C

D

D

D

D

D

E

EE

EE

F

FF

FF

G

G

G

G

G

H

H

H

H

H

PCI slot 1

shared

PCI slot 2

shared

PCI slot 3

shared

Onboard USB 1.0 controller

shared

Onboard USB 2.0 controller

shared

Onboard LAN1

shared

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

1.8.4

1.8.4

1.8.4

PCI slots

PCI slots

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.