METHOD FOR DATA OPERATION AND MAPPING OF FLASH MEMORY

摘要

PURPOSE: A data operation and mapping method of a flash memory is provided to improve flash memory efficiency by efficiently managing a storage space of the flash memory. CONSTITUTION: Logic block information, logic sector information, and data are provided(S50). At least one physical block is mapped in correspondence with the logic block information. The at least one physical block is selected from plural pre-blocks based on erase count information of a current state. The selected pre-blocks are dynamically mapped(S60). The data is saved in a first location as a coincidence domain of a physical offset and a logical offset within at least one physical block(S57). The data is saved in a second location(S54). The erase count information includes erase count number information for a corresponding block.