Toshiba PQF46X Manual Do Utilizador

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1.2 System Unit Components 
1 Hardware Overview 
y  Two independent 16/20/24-bit S/PDIF-Out converters support 44.1 k/48 k/96 k/192 kHz 
sample rate. 
y  One 16/20/24-bit S/PDIF-In converter supports 44.1 k/48 k/96 k/192 kHz sample rate. 
y  High quality analog differential CD input. 
y  Support external PCBEEP input and built-in digital BEEP generator. 
y  Two jack detection pins each designed to detect up to 4 jacks. 
y  All analog jacks are stereo input and output re-tasking for analog plug & play. 
y  Built-in headphone amplifiers for each re-tasking jack. 
y  Two digital GPIOs and one analog GPIO for customized applications. 
 
‰  KBC/EC (Keyboard Controller/Embedded Controller) 
A single KBC W8769 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. 
−  Storing records of battery use 
 
‰  Clock Generator 
y  SLG8SP510 
−  Generating the clock signal required for the system 
 
Qosmio F40/F45   Maintenance Manual 
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