Digital Voice Interface Application Note r0

LE866 DIGITAL VOICE INTERFACE APPLICATION NOTE 80471NT11521A Rev.0 • 2017-01-16 12 of 22

5 DVI AT COMMANDS

Several DVI audio bus configurations are available via AT#DVI and AT#DVIEXT commands.

The tables in the following sub-sections summarize their parameters; refer to the AT Commands User

Guide for the syntax details.

AT#DVI

The DVI signals are Alternate functions of GPIOs 1, 2, 3 and 4.

The AT#DVI command enables/disables the DVI interface, selects the DVI port, and sets the module

in Master or Slave configuration. The table below shows the AT command parameters values.

NOTE:

<mode> =2 and <clockmode>=0 not supported on LE866

AT#DVI =<mode>,<dviport>,<clockmode>

<mode>

0: disable DVI interface, factory setting

1: enable DVI interface

2: reserved

2: select DVI port 2, factory

setting

0: DVI slave

1: DVI master, factory setting