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1 Hardware Overview 1.2
System Unit Components
12 Satellite M200/M205/Satellite Pro M200 Maintenance Manual
y 2 jack detection pins each designed to detect up to 4 jacks.
y Supports hardware digital volume control for digital microphone input.
y Support external PCBEEP input and built-in digital BEEP generator.
KBC/EC (Keyboard Controller/Embedded Controller): A single KBC W8763 chip is used to
serve as KBC/EC and Super IO.
y KBC
− Scan controller function
− Interface controller function
y 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
y 24C02 equivalent (128 words x 16 bits, I2C interface) integrated in battery pack.
− Store records of battery use
Clock Generator
y ICS9LPRS316
− Generate the clock signal required for the system
Modem Controller: Built-in MDC card with Askey / Foxconn.
y Digital signal conductor protection
y Ring wake-up support
y Azalia interface