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METHOD FOR MANAGING BAD MEMORY BLOCKS IN A NONVOLATILE-MEMORY DEVICE, AND NONVOLATILE-MEMORY DEVICE IMPLEMENTING THE MANAGEMENT METHOD
METHOD FOR MANAGING BAD MEMORY BLOCKS IN A NONVOLATILE-MEMORY DEVICE, AND NONVOLATILE-MEMORY DEVICE IMPLEMENTING THE MANAGEMENT METHOD
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机译:一种非易失性存储设备中坏存储块的管理方法及实现该管理方法的非易失性存储设备
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摘要
A method for managing bad memory blocks of a nonvolatile-memory device, in which the available memory blocks are divided into a first set, formed by addressable memory blocks that are to be used by a user, and a second set, formed by spare memory blocks that are to replace bad addressable memory blocks, and in which the bad addressable memory blocks are re-mapped into corresponding spare memory blocks. The re-mapping of the bad addressable memory blocks envisages: seeking bad spare memory blocks; storing the logic address of each bad spare memory block in a re-directing vector in a position corresponding to that of the bad spare memory block in the respective set; seeking bad addressable memory blocks; and storing the logic address of each bad addressable memory block in a free position in the re-directing vector.
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