Vizio VX37L HDTV10A Service Manual page 50

2. 2 Wire serial control mode
The wm8776 supports software control via a 2-wire serial bus. Many devices can be
controlled by the same bus, and each device has a unique 7-bit address (this is not the
same as the 7-bit address of each register in the wm8776). The wm8776 operates as a
slave device only.
2-wire serial interface as shown in the following figure.
The wm8776 has two possible device addresses, which can be selected using the CE pin
In the L32 LCD TV CE pin is LOW (device address is 34h)
In the L32 wm8776 has 2-wire interface
CONFIDENTIAL DO NOT COPY
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Page 7-19
File No. SG-0209