SPRUIW9C October 2021 – March 2024 TMS320F280033 , TMS320F280034 , TMS320F280034-Q1 , TMS320F280036-Q1 , TMS320F280036C-Q1 , TMS320F280037 , TMS320F280037-Q1 , TMS320F280037C , TMS320F280037C-Q1 , TMS320F280038-Q1 , TMS320F280038C-Q1 , TMS320F280039 , TMS320F280039-Q1 , TMS320F280039C , TMS320F280039C-Q1
Impulse noise sources such as EMI, crosstalk, and so on, has the possibility of corrupting SDCLK and SDDATA bit streams, resulting in corrupted SDFM filtered data. This impulse noise effects can be mitigated when using the input qualification feature that synchronizes SDCLK/SDDATA signals with PLLRAWCLK. By default, both SDCLK and SDDATA bit stream are not synchronized. SDCLK can be synchronized to PLLRAWCLK by setting SDCTLPARMx.SDCLKSYNC = 1 and SDDATA can be synchronized to PLLRAWCLK by setting SDCTLPARMx.SDDATASYNC = 1. Figure 19-4 shows optional Input Qualification option on SDCLK and SDDATA lines.