File No. Sg- - Vizio L37 Service Manual

b. 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 uni ue 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 L37 LCD TV CE pin is LOW (device address is 34h).
In the L37 wm8776 has 2-wire interface
CONFIDENTIAL – DO NOT COPY Page 8-52

File No. SG-0176