Flash memory system

Abstract

The invention relates to a storage system with flash memories, which mainly comprises a microcontroller, at least a flash memory connected with the microcontroller, and a scratch pad storage. A plurality of entity storage area blocks are included in each flash memory; an entity address and a plurality of entity sectors are included in each entity storage area block; each entity sector at least comprises a user data field and a logical address pointing column, wherein logical address pointing data can be written into each logical address pointing column when entity data is stored in the user data field; a logical address of a logical storage area block corresponding to each entity storage area block can be recorded in the logical address pointing data; the scratch pad storage is connected with the microcontroller, and can be used for storing a connection comparison table; and the entity address of each entity storage area block and the logical address of one of the logical storage area blocks corresponding to the entity storage area blocks can be recorded in the connection comparison table. The storage system with the flash memories can not only ensure secure data access, but also save the internal storage capacity and the electric energy loss of the scratch pad storage.

Description

This application is a divisional application of an invention patent application with the application number 2005100735102, the application date being June 1, 2005, and the invention title being "Flash Memory Storage System". technical field The invention relates to a flash memory storage system, in particular to a flash memory storage system which can not only save the startup time of the flash memory storage system, but also save the memory capacity of the temporary memory and ensure the security of data access. Background technique Existing flash memory storage system (Flash Storage), as shown in Figure 1, flash memory storage system 10 mainly comprises a microcontroller 11, a temporary memory 15 and at least one flash memory (device) 13, wherein, microcontroller 11 can respectively The temporary memory 15 , the flash memory 13 and an application system 17 are connected, and the flash memory (Flash Memory) 13 includes a plurality of physical storage blocks 131 , and each ...

AI Technical Summary

Problems solved by technology

3. The microcontroller can only execute the memory access program and flash memory type registered in its memory program unit. If the connected flash memory type or type is not registered in the memory program unit, it will not be able to be accessed by the microcontroller. accept or execute

4. The data access information of the microcontroller can only be changed at the rising edge of the system clock. When the data access action is executed, the internal frequency cannot be adjusted in a timely manner, so it cannot effectively save power