SPRUJ53B April 2024 – September 2024 TMS320F28P550SJ , TMS320F28P559SJ-Q1
These devices have memory error detection and correction features to satisfy safety standards requirements. These requirements warrant the addition of detection mechanisms for finite dangerous failures.
In this device, all dedicated RAMs support error correction code (ECC) protection and the shared RAMs have parity protection. The ECC scheme used is Single Error Correction Double Error Detection (SECDED). The parity scheme used is even parity. ECC/Parity covers the data bits stored in memory as well as address.
ECC/Parity calculation is done inside the memory controller module and calculated. ECC/Parity is written into the memory along with the data. ECC/Parity is computed for 16-bit data; hence, for each 32-bits of data, there are three 7-bit ECC codes (or 3-bit parity), two of which are for data and a third one for the address.