Intel S845WD1-E Computer Hardware User Manual


 
Description 15
Intel 82801BA I/O Controller Hub (ICH2)
The Intel 82801BA ICH2 has these features:
33 MHz Peripheral Component Interface (PCI) Local Bus slots supporting PCI
specification, Rev 2.2.
Support for the Low Pin Count (LPC) interface.
Integrated IDE controller (supports Ultra ATA-66/100 mode and Ultra DMA 33 mode).
Integrated LAN media access controller.
Universal Serial Bus Interface with two USB controllers providing two back panel ports, and
the option for two front panel ports, in a Universal Host Controller Interface (UHCI)
implementation.
Power management logic (ACPI Rev 1.0b compliant).
Support for the System Management Bus routed to:
All PCI Slots
S5 wake from all PCI slots
Real-Time Clock (with 256-byte battery backed CMOS RAM).
Supports two Master/DMA devices.
Intel 82802AB Firmware Hub (FWH)
The Intel 82802AB Firmware Hub (FWH) includes a 4 megabit symmetrical flash memory device.
Internally, the device is grouped into eight 64 KB blocks that are individually erasable, lockable,
and unlockable.
The FWH provides the following:
System BIOS program
Logic that enables protection for storing and updating of platform information
I/O Controller
The SMSC LPC47M102 I/O Controller provides the following features:
Low pin count (LPC) interface
3.3 V operation
One serial port and one serial port header
One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port
(EPP) support
Serial IRQ interface compatible with serialized IRQ support for PCI systems
PS/2-style mouse and keyboard interfaces
Interface for two 1.2 MB, 1.44 MB, or 2.88 MB diskette drives
Intelligent power management, including a programmable wake up event interface
PCI power management support
Fan control:
Four fan control outputs
Four fan tachometer inputs
The BIOS Setup program provides configuration options for the I/O controller.