Method for detecting changed EEPROM contents after a product has left a manufacturer's factory, whereby the EEPROM incorporates a checksum whose value can be checked to determine if memory contents have changed

摘要

Method for detecting changed contents in an EEPROM memory component, whereby the manufacturer sets the contents of the EEPROM at the time of production. The method has the following steps: storage of a checksum value with the memory contents at the time of writing data contents to the memory and at any later time checking of the checksum to determine if the memory contents have been altered. An Independent claim is made for an EEPROM with a number of reserved bytes for storage of checking information or a checksum value so that memory contents can be checked. The invention relates particularly to a DIMM memory component.