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How to send 24bits & n slots TDM from i.MX6DQ SSI.

Question asked by Satoshi Shimoda on Dec 11, 2015
Latest reply on Dec 15, 2015 by igorpadykov

Hi community,

 

I have a question about i.MX6DQ SSI.

Please see the attached file, it shows the format our partner want to output.

I want to know what mode and how should I set SSI register since I feel SSI network mode cannot output it even though it is TDM.

According to the explanation in chapter 61.8.1.4 of IMX6DQRM, I guess it is possible if I set SSI = I2S master mode (I2S_MODE[1:0]=01b), WL[3:0]=1011b(24bits/word), and DC=n-1.
(Please note that the polarity and position of LRCK)

Is my understanding correct?\

Or LRCK toggles for each word and cannot send 3 or more slots in I2S master mode?

 

Best Regards,

Satoshi Shimoda

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