This is the datasheet for 6379A:
I looked at the timing charts, but I’m still having trouble figuring out how the IC treats the serial input.
Apparently, SI is sampled at positive clock edge, but what indicates the start of the input? I mean where are MSB and LSB? Also, I don’t get what LRCK does either.
Can someone please explain to me, in simple words, how this IC is used?