Memory management method, memory storage device and memory control circuit unit
By establishing a backup table when data is integrated and operated, recording and judging mapping relationships, the problem of not being able to determine the correct mapping relationship when the host system writes data, ensuring the correct update of the logic to entity mapping table.
CN119200981APending Publication Date: 2024-12-27PHISON ELECTRONICS
Patent Information
- Application Number
- CN202411264241.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2024-12-27
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Figure CN119200981A_ABST
Abstract
The invention provides a memory management method, a memory storage device and a memory control circuit unit. The method comprises the following steps: starting a data consolidation operation; selecting a source entity unit and a target entity unit from the rewritable nonvolatile memory module to execute data integration operation; judging whether a backup table corresponding to the logic-to-entity mapping table is established or not; if it is judged that the backup table is established, copying first data located at a first entity address in the source entity unit to a second entity address of the target entity unit, and recording the second entity address in the backup table; and judging whether the second entity address is updated to the logic-to-entity mapping table or not according to the information in the backup table. Therefore, the problems encountered when writing and data integration operation are performed at the same time can be solved.
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Citation Information
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