SPRUI78D March 2019 – January 2022 TMS320F28075 , TMS320F28075-Q1 , TMS320F28076 , TMS320F28374D , TMS320F28374S , TMS320F28375D , TMS320F28375S , TMS320F28375S-Q1 , TMS320F28376D , TMS320F28376S , TMS320F28377D , TMS320F28377D-Q1 , TMS320F28377S , TMS320F28377S-Q1 , TMS320F28378D , TMS320F28378S , TMS320F28379D , TMS320F28379D-Q1 , TMS320F28379S
The link pointer OTP location is not protected by ECC. To provide better security to the customer code and enable application safety, majority voting and data consistency based error detection is implemented. The location of the zone select region in OTP is decided based on the value of three 29-bit link pointers (Zx-LINKPOINTERx) programmed in the OTP of each zone of each CPU subsystems. The final value of the link pointer is resolved in hardware when a dummy read is issued to all the link pointers by comparing all the three values (bit-wise voting logic). Any error in the resolution of the final link pointer value will set the Zx_LINKPOINTERERR register.