Phase-memory write operation method
A technology of phase change memory and write operation, which is applied in the direction of static memory, read-only memory, digital memory information, etc., can solve the problems of slow read and write speed, achieve the effect of prolonging the service life and reducing the number of write operations
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[0030] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0031] The present invention provides a design for reducing the amount of data written back by using the idea of data transformation. This method occurs when the data in the upper layer cache changes and needs to be written back to the storage unit of the phase change memory PCM. The following steps are mainly implemented in In the controller of phase change memory PCM. Such as figure 1 As shown, methods to reduce writeback operations include:
[0032] Step S101, performing preprocessing on the data block to be written back in the PCM storage unit to obtain the preprocessed data block, the preprocessing includes:
[0033] Invert the data block to be written bit by bit...
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