CM106-F+ CMEDIA [C-Media Electronics], CM106-F+ Datasheet - Page 23

• Manufacturer Part Number: CM106-F+
• Description: USB Audio I/O Controller
• Manufacturer: CMEDIA [C-Media Electronics]

CM106-F+/L+
High End 8CH DAC and 2CH ADC Integrated Solution
MCU to read them.
CM106F+/L+ has one input pin ‘SCLK’ to get serial clock from MCU, and one open-drain output
pin ‘SDAT’ to send or receive serial signal to/from MCU. As shown below, ‘SDAT’ should be
stable when ‘SCLK’ is high, and can have transition only when ‘SCLK’ is low.
START and STOP conditions shown below are the exception. Every transaction begins from a
START, and ends with a STOP, or another START (repeated START).
The figure below demonstrates a transaction example. After every 8 bits sent by the transmitter,
the receiver should send one bit low for positive acknowledgement or one bit high for negative
acknowledgement. After the negative acknowledgement, a STOP or repeated START should
follow.
Date: 08/19/2005
Version： 1.01
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