I'm looking to send 8 audio channels from ADAU145x through TDM to my DAC. As I understand it, in Sigmastudio register set up I need to set SDATA_OUT 2 and 3 to TDM mode. I can then use one of these data outputs for my 8 channels whilst leaving the other floating? Allowing me to use the GPIO on the unused SDATA_OUT's respective LRCLK pin? Is it as simple as that?