System Support

Table 4-1 shows the standard configuration of device numbers and IDSEL connections for components and slots residing on a PCI 2.3 bus.

Table 4-1

PCI Component Configuration Access

 

 

 

 

PCI Bus

IDSEL

PCI Component

Notes

Function #

Device #

#

Wired to:

 

 

 

 

 

 

Q45 GMCH:

 

 

 

 

--

Host/DMI Bridge

 

0

28

0

 

Host/PCI Expr. Bridge

 

0

1

0

 

Integrated Graphics Cntlr.

 

0

2

0

 

 

 

 

 

 

 

PCI Express x16 graphics slot

 

0

0

1

--

 

 

 

 

 

 

82801 ICH10

 

 

 

 

--

PCI Bridge

 

0

30

0

 

LPC Bridge

 

0

31

0

 

SATA Controller #1

 

2

31

0

 

SMBus Controller

 

3

31

0

 

SATA/eSATA Controller #2

[5]

5

31

0

 

Thermal System

 

6

31

0

 

USB 1.1 Controller #1

 

0

29

0

 

USB 1.1 Controller #2

 

1

29

0

 

USB 1.1 Controller #3

 

2

29

0

 

USB 1.1 Controller #4

 

0

26

0

 

USB 1.1 Controller #5

 

1

26

0

 

USB 1.1 Controller #6

 

3 [2]

29 [2]

 

 

USB 2.0 Controller #1

 

7

29

0

 

USB 2.0 Controller #2

 

7

26

0

 

GbE NIC

 

0

25

0

 

Intel HD audio controller

 

0

27

0

 

PCIe port 1

[3]

0

28

0

 

PCIe port 2

[1]

1

28

0

 

PCIe port 3

[1]

2

28

0

 

PCIe port 4

[1]

3

28

0

 

PCIe port 5

 

4

28

0

 

PCIe port 6

 

5

28

0

 

 

 

 

 

 

 

PCI 2.3 slot 1

[3]

0

4

7

AD20

 

 

 

 

 

 

PCI 2.3 slot 2

[3]

0

11

7

AD25

 

 

 

 

 

 

PCI 2.3 slot 3

[4]

0

10

7

AD27

 

 

 

 

 

 

PCIe x1 slot 1

[3]

0

0

32

 

 

 

 

 

 

 

PCIe x1 slot 2

[3]

0

0

48

 

 

 

 

 

 

 

NOTES:

[1]Function not used in these systems.

[2]USB 1.1 controllers in 6+6 configuration. 8+4 configuration will have USB 1.1 controller #6 use Function 26, Device 2.

[3]SFF and CMT form factors only.

[4]CMT form factor only

[5]Function is only visible in IDE mode (not visible in AHCI orRAID SATA emulation mode).

 

4-2

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Technical Reference Guide