Register and Memory Mapping
9.1
PCI Devices and Functions
The Intel ICH10 incorporates a variety of PCI devices and functions, as shown in
Table 9-1. There are seven logical devices for consumer components, and 8 logical
devices for Corporate components. The first is the DMI-To-PCI bridge (Device 30). The
second device (Device 31) contains most of the standard PCI functions that always
existed in the PCI-to-ISA bridges (South Bridges), such as the Intel PIIX4. The third
and fourth (Device 29 and Device 26) are the USB and USB2 host controller devices.
The fifth (Device 28) is PCI Express device. The sixth (Device 27) is HD Audio controller
device. The seventh (Device 25) is the Gigabit Ethernet controller device.
If for some reason, the particular system platform does not want to support any one of
the Device Functions, with the exception of D30:F0, they can individually be disabled.
The integrated Gigabit Ethernet controller will be disabled if no Platform LAN Connect
component is detected (See Chapter 5.3). When a function is disabled, it does not
appear at all to the software. A disabled function will not respond to any register reads
or writes, insuring that these devices appear hidden to software.
b
Table 9-1.
PCI Devices and Functions
Bus:Device:Function
Function Description
PCI-to-PCI Bridge
Bus 0:Device 30:Function 0
Bus 0:Device 31:Function 0
Bus 0:Device 31:Function 2
Bus 0:Device 31:Function 3
Bus 0:Device 31:Function 5
Bus 0:Device 31:Function 6
Bus 0:Device 29:Function 0
Bus 0:Device 29:Function 1
Bus 0:Device 29:Function 2
Bus 0:Device 29:Function 3
Bus 0:Device 29:Function 7
Bus 0:Device 26:Function 0
Bus 0:Device 26:Function 1
Bus 0:Device 26:Function 2
Bus 0:Device 26:Fucntion 7
Bus 0:Device 28:Function 0
Bus 0:Device 28:Function 1
Bus 0:Device 28:Function 2
Bus 0:Device 28:Function 3
Bus 0:Device 28:Function 4
Bus 0:Device 28:Function 5
Bus 0:Device 27:Function 0
Bus 0:Device 25:Function 0
LPC Controller1
SATA Controller #1
SMBus Controller
SATA Controller #23
Thermal Subsystem
USB UHCI Controller #1
USB UHCI Controller #2
USB UHCI Controller #3
USB UHCI Controller #62
USB EHCI Controller #1
USB UCHI Controller #4
USB UHCI Controller #5
USB UHCI Controller #62
USB EHCI Controller #2
PCI Express* Port 1
PCI Express Port 2
PCI Express Port 3
PCI Express Port 4
PCI Express Port 5
PCI Express Port 6
Intel® High Definition Audio Controller
Gigabit Ethernet Controller
NOTES:
1.
The PCI-to-LPC bridge contains registers that control LPC, Power Management, System
Management, GPIO, Processor Interface, RTC, Interrupts, Timers, and DMA.
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Datasheet
INTEL [ INTEL ]
