dynabook Satellite C40-G, Manual

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SATELLITE PRO C40-G, SATELLITE C40-G Maintenance Manual

Card Bus Controller

REALTEK RTS5170
 Memory Card Reader Controller

Audio Controller
REALTEK ALC256 integrated audio controller supports multimedia. The sound
system features contain the following:

integrates a 4-channel DAC, 4-channel ADC, and a stereo Class-D Speaker
Amplifier with 2 watts per channel output power.

4-channel ADC that supports 16/20/24-bit PCM format for independent two
stereo channel audio inputs. All ADCs support 44.1K/48K/96/192KHz
sample rates.

4 GPIOs for customized applications (pin-shared with digital microphone
interface and SPDIF-OUT)

Supports combo jack with stereo headphone output and mono microphone
input on a 4-pole jack

Volume synchronization for PCBEEP in D0/D3 mode

KBC/EC (Keyboard Controller/Embedded Controller)
A KBC IT8987-128 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
 Cooling fan speed control

Universal I/O port

Battery capacity check