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What are the advantage and disadvantages of right justified I2S mode over Left justified I2S mode and Basic I2S mode?

I2S specifications provide different modes of operation. I tried looking for advantages of one mode over the other but could not find any good literature. Can anyone provide or explain the advantage of one mode over the other ?

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Trickmaster Avatar asked Oct 21 '22 14:10

Trickmaster


1 Answers

With samples that are aligned to the most significant bit, the sample length does not matter (because if the sent and expected sample lengths differ, any ignored or read-as-zero bits are the LSBs).

Otherwise, all choices are arbitrary and do not have any advantage whatsoever over each other. (This is why hardware designers choose one I²S mode at random, instead of selecting an obviously best mode.)

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CL. Avatar answered Oct 23 '22 06:10

CL.