SPRUII0F May 2019 – June 2024 TMS320F28384D , TMS320F28384D-Q1 , TMS320F28384S , TMS320F28384S-Q1 , TMS320F28386D , TMS320F28386D-Q1 , TMS320F28386S , TMS320F28386S-Q1 , TMS320F28388D , TMS320F28388S
The dual-zone code security module (DCSM) on this device locks read access to secure memories including ROM. To facilitate CRC checks, TI provides ROM functions to securely access those memory areas. To prevent security breaches, interrupts must be disabled before calling these functions. If a vector fetch occurs in a secure copy or CRC function, the DCSM triggers a reset. This reset on the CM is the same as the CM System Reset.
After this reset, the CMEOLRESETn bit in the CMRESC register is set. Software can read this bit to determine the cause of the reset and clear the status by writing 1 into corresponding bit in the CMRESCCLR register.