Toshiba L630, L635 manual  Digital microphone interface with internal MIC boost supporting

1.2 System Unit Components 1 Hardware Overview

Digital microphone interface with internal MIC boost supporting

Jack sense detects up to 4 jacks using only one sense pin

Digital Mixer

+3.3V analog and I/O operation; uses Vaux for power management modes

Audio Director for Headphone and Internal Speakers Redirection

Smart Audio GUI - advanced audio control

KBC/EC (Keyboard Controller/Embedded Controller)

A KBC WINBOND NPCE781LA0DX 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 ICS9LPRS3197

−Generating the clock signal required for the system

LAN Controller

Satellite/Satellite Pro/L630/L635 Maintenance Manual 15