Device Family: Stratix® III, Stratix® IV E, Stratix® V GX

Type: Answers

Area: EMIF, Intellectual Property

IP Product: DDR3 SDRAM Controller MegaCore supporting UniPHY

Does UniPHY controller write back the data to memory when double bit error happens with enable ECC option turned ON?


Yes, actually controller is writing back the same read data to the memory although the double bit error is uncorrectable. 



This will be fixed in future Quartus® software version.