1.2 System Unit Components | 1 Hardware Overview |
The AD1981B integrated audio controller supports multimedia. The sound system feature contains the following:
?Variable Sample Rate Audio
?External Audio Power
?Integrated Stereo Headphone Amplifier
?Stereo
?
?Dual MIC Input with
?High Quality CD Input with Ground Sense.
?KBC/EC (Keyboard Controller/Embedded Controller)
A single LPC 47N249 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 EE PROM
?24C02 equivalent (128 words x 16 bits, I2C interface) integrated in the battery pack
?Storing records of battery use
?Clock Generator
?ICS954206B
Satellite M40/M45 TECRA A4 dynabook Vx/4 Maintenance Manual | 15 |
