SPRUJ53B April 2024 – September 2024 TMS320F28P550SJ , TMS320F28P559SJ-Q1
The Flash wrapper provides a command to program the Flash and User OTP. This command is also used to program ECC check bits.
The DCSM OTP programming must be aligned to 128-bit address boundaries and each 128-bit word can only be programmed once. The exceptions are:
To avoid exceeding data retention capability limits, do not perform more than 4 program operations on the same Flash word line before performing an erase operation. Each Flash word line consists of sixteen 128-bit words (256 bytes). This limit is especially important to observe when writing to one-time-programmable/non-erasable Flash regions, such as the User OTP.