Flash memory and access control method for data in flash memory
In a flash memory disclosed by the invention, first data and a first address of the first data are stored in a memory body, second data is stored in a data set unit, and a second address of the second data in the memory body is stored in an address table unit. A control module judges whether a visit...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | In a flash memory disclosed by the invention, first data and a first address of the first data are stored in a memory body, second data is stored in a data set unit, and a second address of the second data in the memory body is stored in an address table unit. A control module judges whether a visit address is matched with the first address or the second address, and if the visit address is matched with the first address, the control module reads the first data according to an access control logic of the memory. If the visit address is matched with the second address, the control module directly reads the second data. In the flash memory provided by the invention, the control module can rapidly read the second data, so that a flash memory data reading speed of the embedded system is enhanced, meanwhile direct interaction between an external system and the memory body can also be reduced, times and a process length of data relay are reduced, and an error probability of data transmission is reduced. The inventi |
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