SPRUJB3 March 2024 AM67 , AM67A , TDA4AEN-Q1 , TDA4VEN-Q1
The TDM transfer mode of the MCASP supports the I2S format when frame is configured to have 2 slots. The I2S format is specifically designed to transfer a stereo channel (left and right) over a single data pin AXRn. The "Slots" are also commonly referred to as "channels". The frame width duration in the I2S format equals size of a slot. The frame signal is also referred to as "word select" in the I2S format.
The I2S protocol is illustrated on Figure 12-340.