Electronic flash memory external storage method and device

摘要

An electronic flash memory external storage method and device for data processing system, comprising firmware which directly controls the access of flash memory and implements standard interface functions, adopts particular format of reading and writing the external storage media, receives power via USB, externally stores data by flash memory and access control circuit with the cooperation of firmware, driver and operating system, and has write-protection so that the data can be safety transferred. The method according to present invention is highly efficient and all parts involved are assembled as a monolithic piece so that it has large-capacity with small size and high speed. The device operates in static and is driven by software. It is plug-and-play and adapted to micro data processing system.