| 摘要 |
A method is directed of reading a portion of non- volatile memory device including two representative sectors or pages of data. The first sector of data includes a first user data area (120) and a redundant memory area (122). The redundant memory area (122) is further divided into a first portion (202) and a second portion (204). The first portion (202) includes a first CRC code (220) and other redundant data (222). The second portion (204) includes a first error correction code (ECC) (224). Similarly, the second sector includes a second user data area (124) and a second redundant memory area (126). The second redundant memory area (126) is subdivided into a first portion (212) and a second portion (214). The first portion (212) includes a second CRC code (230) and other redundant data (232). The second portion (214) may include an error correction code (ECC) (206) and other redundant data (234). Generally, other redundant data areas (222, 232, and 234) may include system data and data useful for cataloging data blocks, such as overwrite flags, logical address data, format reserve data, security codes, data management flags, and tags identifying the kind of data in the sector.
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