A METHOD OF CHECKING EEPROM DATA WITH AN EMBEDDED CRC

摘要

A method and apparatus for determining the integrity of data stored in a PROM device provides at least one holding latch connected to two sets of blocks. The first set of blocks contains data. The second set of blocks contains CRC information corresponding to the data in the first set of blocks. Upon reading the data from a first data block, the CRC information from the corresponding CRC block is also read. The data read is applied to the CRC algorithm to generate a current CRC value. The current CRC value is then compared to the CRC information obtained from the corresponding CRC block. The two CRC values are identical, the data is considered valid. Otherwise, the data is considered invalid.