Toshiba TOSHIBA NB100 manual Hardware Overview System Unit Components

1 Hardware Overview 1.2 System Unit Components

y2 stereo ADCs support 16/20-bit PCM format for two stereo independent sound inputs.

y16/20/24-bit S/PDIF-OUT supports 44.1K/48K/88.2K/96K/192KHz sample rate.

yAll ADCs support 44.1K/48K/96KHZ sample rate.

y4 GPIOs (GPIO0/GPIO3 are digital GPIO shared with digital MIC interface, GPIO1/GPIO2 are analog) for customized applications.

yHigh quality analog differential CD input.

y2 jack detection pins each designed to detect up to 4 jacks.

ySupports hardware digital volume control for digital microphone input.

ySupports external PCBEEP input and built-in digital BEEP generator.

−

‰KBC/EC (Keyboard Controller/Embedded Controller)

A single ITE8521E-L chip is used to serve as KBC/ EC and Super IO.

yKBC

−Scan controller function

−Interface controller function

yEC

−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

y24C02 equivalent (128 words x 16 bits, I2C interface) integrated in battery pack.

−Storing records of battery use

‰Clock Generator

yICS9LPRS501

−Generating the clock signal required for the system.

14 TOSHIBA NB100 Maintenance Manual