TPS65994AD: Confirm circuit design regarding TPS66993.

Tool/software:

Hi AE,

        Since the DP Aux_N and  DP Aux_P will pass through PD to the HBR.

        I’m concerned that in TBT mode, externally pulling SBTX and SBRX to ground might cause SBU pulled to ground.

        1. Should PA_SBTX and PA_SBRX be pulled low or floating?

        2. Regarding PB_DBG_SDA/SCL, they are connected to the 1.8V system, so we pull up to 1.8V in the external circuit.

            2-1. Does the 1.8 V system need to convert to 3.3 V through a level shifter ?

            2-2. If Debug Access Mode is enabled, PB_DBG_SDA/SCL should not be pulled low, right?

            2-3. If I am not using them, I can pull up to 3.3V or leave them floating, correct?

Best Regards