Data renewal method and apparatus for increasing the reliability of flash memories

摘要

A method for data renewal of a memory unit-organized flash memory, the memory units described are error-proofed via ECC words, wherein the memory units described are checked in regularly activated Prüflesezyklen and thereby depending on the occurred in a Prüflesezyklus ECC error states when exceeding a test threshold of ECC Errors per ECC word either individual written storage units or all described storage units are renewed; characterized in that the progress of a test-reading cycle and a data-renewal process are each recorded in the flash memory.