STORAGE DEVICE BASED ON A FLASH MEMORY, USER DEVICE INCLUDING THE SAME, AND DATA READ METHOD THEREOF

摘要

PURPOSE: A storage device based on a flash memory, a user device including the same, and a data read method thereof are provided to perform a read operation for a corresponding page, by obtaining a physical page corresponding to a logical page using a full block indicator. CONSTITUTION: A flash memory (1210) stores data. A controller (1220) receives read request for a logical page of the flash memory from a host. The controller performs read operation for a physical page of the flash memory. The controller includes a mapping manager. The mapping manager changes mapping method, depending on whether a physical unit corresponding to a logical unit to which the logical page from the host belongs exists or not.