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.

Description

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Intel S845WD1-E manual Intel 82801BA I/O Controller Hub ICH2, Intel 82802AB Firmware Hub FWH