82801FB Datasheet, PDF (47/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

Introduction
Table 1-2. PCI Devices and Functions
Bus:Device:Function
Function Description
Bus 0:Device 30:Function 0
PCI-to-PCI Bridge
Bus 0:Device 30:Function 2
AC ’97 Audio Controller
Bus 0:Device 30:Function 3
Bus 0:Device 31:Function 0
AC ’97 Modem Controller
LPC Controller¹
Bus 0:Device 31:Function 1
IDE Controller
Bus 0:Device 31:Function 2
SATA Controller
Bus 0:Device 31:Function 3
SMBus Controller
Bus 0:Device 29:Function 0
USB UHCI Controller 1
Bus 0:Device 29:Function 1
USB UHCI Controller 2
Bus 0:Device 29:Function 2
USB UHCI Controller 3
Bus 0:Device 29:Function 3
USB UHCI Controller 4
Bus 0:Device 29:Function 7
USB 2.0 EHCI Controller
Bus 0:Device 28:Function 0
PCI Express* Port 1
Bus 0:Device 28:Function 1
PCI Express Port 2
Bus 0:Device 28:Function 2
PCI Express Port 3
Bus 0:Device 28:Function 3
PCI Express Port 4
Bus 0:Device 27:Function 0
Intel High Definition Audio Controller
Bus n:Device 8:Function 0
LAN 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.
The following sub-sections provide an overview of the ICH6 capabilities.
Direct Media Interface (DMI)
Direct Media Interface (DMI) is the chip-to-chip connection between the Memory Controller Hub /
Graphics Memory Controller Hub ((G)MCH) and I/O Controller Hub 6 (ICH6). This high-speed
interface integrates advanced priority-based servicing allowing for concurrent traffic and true
isochronous transfer capabilities. Base functionality is completely software-transparent, permitting
current and legacy software to operate normally.
PCI Express* Interface
The ICH6 provides 4 PCI Express root ports that are compliant to the PCI Express Base
Specification, Revision 1.0a. The PCI Express root ports can be statically configured as four x1
ports or ganged together to form one x4 port (Enterprise applications only). Each Root Port
supports 2.5 Gb/s bandwidth in each direction (5 Gb/s concurrent) and two virtual channels for full
isochronous data support.
Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet
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