EEPROM BACKUP METHOD AND DEVICE

An electrically erasable programmable read-only memory (EEPROM) device includes a plurality of data areas in the EEPROM associated with a corresponding plurality of memory addresses, respectively, a data status indicator associated with each of the plurality of data areas. The data status indicator...

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Bibliographic Details
Main Author Zhou Shicong
Format Patent
LanguageEnglish
Published 06.07.2017
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
INFORMATION STORAGE
PHYSICS
STATIC STORES
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Summary:An electrically erasable programmable read-only memory (EEPROM) device includes a plurality of data areas in the EEPROM associated with a corresponding plurality of memory addresses, respectively, a data status indicator associated with each of the plurality of data areas. The data status indicator is configured to indicate that a data area is in an erase state, an uncertain state, or a valid state. The EEPROM device also includes a controller. A first data area and a second data area are configured to be a backup storage area for each other. In an erase and program cycle, at least one of the first or second memory areas is in a valid state throughout the erase and program cycle. Further, in an erase and program cycle, an erase operation is performed in one of the first or second memory areas, and a program operation is performed in the other data areas.
Bibliography:Application Number: US201715466503