Toshiba E205 manual  Kbc

1.2 System Unit Components 1 Hardware Overview

KBC/EC (Keyboard Controller/Embedded Controller)

A KBC WINBOND WPCE781L chip is used to serve as KBC/EC and Super IO:

KBC

−Scan controller function

−Interface controller function

EC

−Power supply sequence control

−Overheat shutdown support

−LED control

−Beep control

−Device ON/OFF

−Cooling fan speed control

−Universal I/O port

−Battery capacity check

−Flash memory reprogramming function

−EC access interface

−I2C communication control

Battery EEPROM

24C02 equivalent (128 words x 16 bits, I2C interface) integrated in battery pack

−Storing records of battery use

Clock Generator

ICS ICS9LRS3197

−Generating the clock signal required for the system

LAN Controller

Atheros AR8152-AL1 - 10/100Mbit

−IEEE802.3 10BASE-T/100BASE-TX physical layer interface

−IEEE 802.3u Auto-Negotiation support

−Digital Adaptive Equalization control

−10BASE-T auto-polarity correction

−LAN Connect interface

−Automatic detection of “unplugged mode”

−Remote boot (PXE 2.1)

−Smart power down when link is not detected

Satellite/E200/E205 Maintenance Manual 15