Toshiba Satellite A500 Service Manual page 29

1 Hardware Overview
Card Bus Controller
RICOH R5U230
Audio Controller
Realtek ALC272 integrated audio controller supports multimedia. The sound system
features contain the following:
2 Stereo DACs support 16/20/24-bit PCM format for stereo audio playback
2 stereo ADCs support 16/20-bit PCM format for two stereo independent sound inputs
16/20/24-bit S/PDIF-OUT supports 44.1K/48K/88.2K/96K/192KHz sample rate
All ADCs support 44.1K/48K/96KHZ sample rate
4 GPIOs (GPIO0/GPIO3 are digital GPIO shared with digital MIC interface,
GPIO1/GPIO2 are analog) for customized applications
High quality analog differential CD input
2 jack detection pins each designed to detect up to 4 jacks
Supports hardware digital volume control for digital microphone input
Supports external PCBEEP input and built-in digital BEEP generator
KBC/EC (Keyboard Controller/Embedded Controller)
A KBC WINBOND WPCE781L chip is used to serve as KBC/EC and Super IO:
KBC
EC
16
− Memory Card Reader Controller
− Scan controller function
− Interface controller function
− 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
Satellite/Satellite Pro/A500/A505/A507/dynabook
1B1.2 System Unit Components
Maintenance Manual