https://www.kernel.org/doc/html/v5.12/sound/soc/dai.html
ASoC Digital Audio Interface (DAI) — The Linux Kernel documentation
digital audio interfacelinux kernelasocdaidocumentation
https://us.design-reuse.com/sip/i2s-left-justified-tdm-digital-audio-interface-ip-44781/
I2S/Left-Justified/TDM Digital Audio Interface
The AR38U12 is a soft macro IP supporting industry-standard I2S, Left-Justified and Time-Division-Multiplexed (TDM) serial interface to parallel PCM...
digital audio interfaceleftjustifiedtdm