SFFS700 May 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
The flash modules implemented in this device family have a bit multiplexing scheme implemented such that the bits accessed to generate a logical (CPU) word are not physically adjacent. This scheme helps to reduce the probability of physical multi-bit faults resulting in logical multi-bit faults. Rather, they manifest as multiple single bit faults. As the SECDED flash ECC can correct a single bit fault and detect double bit fault in a logical word, this scheme improves the usefulness of the flash ECC diagnostic. Bit multiplexing is a feature of the flash memory and cannot be modified by the software.