SFFS277 November 2023 TMS320F280033 , TMS320F280034 , TMS320F280034-Q1 , TMS320F280036-Q1 , TMS320F280036C-Q1 , TMS320F280037 , TMS320F280037-Q1 , TMS320F280037C , TMS320F280037C-Q1 , TMS320F280038-Q1 , TMS320F280038C-Q1 , TMS320F280039 , TMS320F280039-Q1 , TMS320F280039C , TMS320F280039C-Q1
Most communication modules support digital or analog loopback capabilities for the I/Os. To confirm the implemented loopback capabilities of the module, see the device-specific technical reference manual. Digital loopback tests the signal path to the module boundary. Analog loopback tests the signal path from the module to the I/O cell with output driver enabled. For best results any tests of the functionality should include the I/O loopback.