Hardware Overview
1.2
TAS5766MRMTEVM Functions
The TAS5766MRMTEVM is controlled by the PPCMB. The PPCMB sends I2C commands from PPC to
the TAS5766M. Upon PPC execution and connection, the TAS5766M is put in software mode.
The digital audio data input to the TAS5766MRMTEVM is sent from PPCMB and is selectable from USB
audio, optical SPDIF, coaxial SPDIF, and analog ADC sources. When a digital audio data input is
selected, the PPC automatically sends appropriate scripts to the device in use.
1.3
TAS5766MRMTEVM Detailed Operations
Upon power-on, the PPCMB uses USB audio input (default). The I2S signals, LRCLK, SCLK, SDIN, and
MCLK, come from the TAS1020B. Microsoft
®
Windows Media
®
Player can stream audio. The TAS1020B
enumerates as the following device on the Microsoft
®
Windows
®
operating system: USB audio (USB-
AudioEVM), human interface devices and USB composite device, see
Figure 2. Device Manager
3
SLOU387 – June 2014
TAS5766MRMTEVM
Copyright © 2014, Texas Instruments Incorporated