Part Number: TMS320F28377S
There seems to be a discrepancy between the documentation for DBCTL.OUTSWAP bits and the dead-band submodule diagram in the TRM.
According to the diagram of the dead-band submodule, S6 controls OutA signal path and S7 controls OutB. DBCTL bit 13 should control S7 and DBCTL bit 12 should control S6.
But from what I'm seeing (and according to documented values 01 and 10 for this field), DBCTL bit 13 actually controls OutA path (S6) and DBCTL bit 12 controls OutB path (S7).