TAS3251EVM: Keeping SCL low during 1ms at startup

Part Number:TAS3251EVM

Hi TI!

Fighting to make my TAS3251 making music, I discovered I have to keep SCL low during about 1ms at startup in order for my later I2C commands to be accepted by the TAS3251, and finally to produce some sound!

I didn't find it by chance but by scanning the I2C bus at startup on the TAS3251EVM board.

 seems the MSP430 does this at startup. I join a screenshot of the scanning.

I didn't find any explanation of that behavior in the manual SLASEG6A.

So what is the reason of this behavior? Do I really have to do that?

I admit that I like to have an explanation of behaviors not indicated in the documentation.

Thank you!