RFID (Radio Frequency Identification Device) anti-power-down NVM (Non-Volatile Memory) data storage device and a storage method thereof
A data storage device and anti-power-off technology, which is applied to the record carrier used by the machine, the generation of response errors, and instruments, etc., can solve the problems of low data writing efficiency and shorten the life of NVM, so as to improve application performance and save operation time Effect
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[0037] The present invention will be described in further detail below through examples, and the following examples are explanations of the present invention and the present invention is not limited to the following examples.
[0038] like figure 1 As shown, a kind of RFID anti-power-off NVM data storage device of the present invention includes two storage areas, and the two storage areas are mapped to the same logical address (it can be simply regarded as one storage area is the backup of another storage area) , and each storage area is set into three parts according to the NVM page size: a data area, an indicator bit and a parity bit.
[0039] The two storage areas are physically independent. Or the two storage areas are logically independent.
[0040] When leaving the factory, the initialization information is written into the two storage areas to ensure that the data area and the indicator bit can be verified to be consistent with the check bit by the check algorithm.
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