Vizio VX37L HDTV10A Service Manual page 49

2. DIGITAL AUDIO INTERFACE
1. Slave mode
The audio interfaces operations in either slave mode selectable using the MS control bit.
In slave mode DIN is always an input to the WM8776 and DOUT is always an output. The
default is Slave mode. In slave mode (ms=0) ADCLRC, DACLRC, ADCBCLK, DACBCLK
are input to the WM8776.
DIN and DACLRC are sampled by the WM8776 on the rising edge of DACBCLK;
ADCLRC is sampled on the rising edge of ADCBCLK. ADC data is output on DOUT and
changes on the falling edge of ADCBCLK. By setting control bit BCLKINV the polarity of
ADCBCLK and DACBCLK may be reversed so that DIN and DACLRC are sample on the
falling edge of DACBCLK, ADCLRC is sampled on the falling edge of ADCBCLK and
DOUT changes on the rising of ADCBCLK.
Slave mode as shown in the following figure.
CONFIDENTIAL DO NOT COPY
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Page 7-18
File No. SG-0209