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    • 6. 发明申请
    • Memory Controller For Controlling The Wear In A Non-volatile Memory Device And A Method Of Operation Therefor
    • 用于控制非易失性存储器件中的磨损的存储器控​​制器及其操作方法
    • US20100125696A1
    • 2010-05-20
    • US12272693
    • 2008-11-17
    • Prasanth KumarDongsheng XingFong-Long Lin
    • Prasanth KumarDongsheng XingFong-Long Lin
    • G06F12/02G06F12/00
    • G06F12/0246G06F2212/7211
    • A memory controller controls the operation of a non-volatile memory device. The memory device has a data storage section and an erased storage section. The data storage section has a first plurality of blocks and the erased storage section has a second plurality of blocks. Each of the first and second plurality of blocks has a plurality of non-volatile memory bits that are erased together. Further, each block has an associated counter for storing the number of times the block has been erased. The memory controller has program instructions which are to scan the counters associated with the blocks of the first plurality of blocks based upon the count contained in each of the counters associated therewith to select a third block, and to scan the counters associated with the blocks of the second plurality of blocks based upon the count contained in each of the counters associated therewith to select a fourth block. The program instructions are further configured to transfer data from the third block to the fourth block, and associating said fourth block with said first plurality of blocks. Finally the program instructions are configured to erase said third block and incrementing the counter associated with said third block, and associating said third block with said second plurality of blocks. The present invention is also a method of operating a non-volatile memory device in accordance with the above described steps.
    • 存储器控制器控制非易失性存储器件的操作。 存储装置具有数据存储部和擦除存储部。 数据存储部具有第一多个块,并且擦除存储部具有第二多个块。 第一和第二多个块中的每一个具有一起被擦除的多个非易失性存储器位。 此外,每个块具有用于存储块被擦除次数的关联计数器。 存储器控制器具有程序指令,其基于与其相关联的每个计数器中包含的计数来扫描与第一多个块的块相关联的计数器,以选择第三块,并且扫描与块相关联的计数器 基于与其相关联的每个计数器中包含的计数来选择第四块,所述第二多个块。 程序指令还被配置为将数据从第三块传送到第四块,并将所述第四块与所述第一多个块相关联。 最后,程序指令被配置为擦除所述第三块并递增与所述第三块相关联的计数器,并且将所述第三块与所述第二多个块相关联。 本发明也是根据上述步骤操作非易失性存储器件的方法。