FW82801E Intel, FW82801E Datasheet - Page 9

• Manufacturer Part Number: FW82801E
• Description: Communications I/O Controller Hub
• Manufacturer: Intel

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Advance Information Datasheet
Table 1.
Overview
The 82801E C-ICH provides extensive I/O support. Functions and capabilities include:
The 82801E C-ICH incorporates a variety of PCI functions that are divided into two logical
devices (30 and 31) on PCI Bus 0 and one device on Bus 1. Device 30 is the Hub Interface-to-PCI
bridge. Device 31 contains all the other PCI functions, except the LAN controller as shown in
Table 1. The LAN controllers are located on Bus 1.
PCI Devices and Functions
Bus 0:Device 30:Function 0
Bus 0:Device 31:Function 0
Bus 0:Device 31:Function 1
Bus 0:Device 31:Function 2
Bus 0:Device 31:Function 3
Bus 1:Device 8:Function 0
Bus 1:Device 9:Function 0
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PCI slots support up to four Req/Gnt pairs
PCI Rev 2.2 compliant with support for 33 MHz PCI operations
Enhanced DMA Controller, Interrupt Controller, and Timer Functions
Integrated IDE controller supports Ultra ATA100/66/33
USB host interface with support for two USB ports; one host controller
Two integrated LAN controllers
System Management Bus (SMBus) with additional support for I
Low Pin Count (LPC) interface
Firmware Hub (FWH) interface support
Serial I/O unit containing two UARTs
Bus:Device:Function
Hub Interface to PCI Bridge
PCI to LPC Bridge
(includes: DMA, Timers, compatible interrupt controller, APIC, RTC, SIU,
processor interface control, power management control, system
management control, and GPIO control)
IDE Controller
USB Controller
SMBus Controller
LAN0 Controller
LAN1 Controller
Function Description
2
C devices
Intel
®
82801E C-ICH
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