Control system and method for rewriting data in a flash memory and a data storage medium in which a program is stored for rewriting data in a flash memory

摘要

A memory control system and method for controlling the rewriting of data in a flash memory which includes a boot memory portion having a plurality of sectors including a first boot sector for storing cold boot data, N other boot sectors for storing other boot data wherein N>=2 and a main memory portion having one or more sectors for storing main memory; with the control system further including a boot data evaluation unit for selecting one or more sectors in flash memory which are to be rewritten based upon boot update evaluation data stored in the N other boot sectors with the boot data evaluation unit being adapted to recognize which of the sectors has been most recently updated with update data and a rewrite unit responsive to said boot data evaluation unit for rewriting data stored in the main memory portion and/or in a boot sector other than the boot sector which has been most recently updated.