ZHCSMR1C october 2019 – september 2021 UCC5870-Q1
PRODUCTION DATA
After each power up, the device performs a TRIM CRC check on the internal non-volatile memory on both the primary and secondary sides. If the calculated CRC8 checksum does not match the CRC8 checksum stored in the internal TRIM memory, the STATUS2[TRIM_CRC_PRI_FAULT] (for a primary side CRC fail, STATUS2) or the STATUS4[TRIM_CRC_SEC_FAULT] (for a secondary side CRC fail, STATUS4) bit is set and, if unmasked, the nFLT1 output goes low. Additionally for the secondary side CRC failure, the driver output is forced to the state defined by CFG11[FS_STATE_TRIM_CRC_SEC_FAULT] (CFG11).