3 interrupt assignments, 16 chapter 2: hardware information – Asus Motherboard P5MT-S User Manual

Page 36

Advertising
background image

2-16

Chapter 2: Hardware information

2.5.3 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 usually available for ISA or PCI devices.

Description

INTA

INTB

INTC

INTD

REQ#

GNT#

PATA Controller

PIRQA#

—

—

—

—

—

SATA Controller

PIRQD#

—

—

—

—

—

SMBus Controller

PIRQB#

—

—

—

—

USB1 UHCI Controller #1

PIRQH#

—

—

—

—

USB1 UHCI Controller #2

PIRQD#

—

—

—

—

—

USB 2.0 EHCI Controller

PIRQH#

—

—

—

—

—

BMC5721 #1

PIRQA#

—

—

—

—

—

BMC5721 #2

PIRQB#

—

—

—

—

—

ATI RAGE XL

PIRQD#

—

—

—

REQ1#

GNT1#

Adaptec 7901

PXIRQ2

—

—

—

PXREQ2 PXGNT2

PCI Express Slot 1 (x16)

PIRQA#

—

—

—

—

—

PCIX Slot 2 (64-bit)

PXIRQ0

PXIRQ1

PXIRQ2

PXIRQ3

PXREQ0 PXGNT0

PCIX Slot 3 (64-bit)

PXIRQ4

PXIRQ5

PXIRQ6

PXIRQ7

PXREQ1 PXGNT1

PCI Slot 4 (32-bit)

PIRQE#

PIRQF#

PIRQG#

PIRQH#

REQ0#

GNT0#

Standard interrupt assignments

PCI Bus Number, IDSEL, and IRQ assignments

Advertising
Popular Brands
Popular manuals