Memory and control method and device thereof
A technology of a control method and a control device, which is applied in the field of memory, can solve the problems of low effective data occupancy rate of TLC blocks, reduce the service life of TLC blocks, increase the number of erases and writes of TLC blocks, etc., so as to improve the low effective data occupancy rate and avoid Resource consumption, performance improvement effect
Pending Publication Date: 2020-11-17
GIGADEVICE SEMICON (BEIJING) INC
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This increases the number of erasing and writing of the TLC block, reduces the service life of the TLC block, and the effective data occupancy rate in the TLC block is low, resulting in a large amount of resource consumption and reducing the performance of the system
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[0026] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through implementation with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the embodiment of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] Such as figure 1 As shown, it is a flowchart of a memory control method provided by an embodiment of the present invention. The memory can be any chip or device integrated with a memory module, such as an eMMC chip integrated with flash memory particles. In other embodiments, it is also Optionally, the memory is other devices integrated with a me...
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The embodiment of the invention discloses a memory, a control method and device thereof, the memory comprises a storage module, the storage module comprises a plurality of physical blocks, and the control method comprises the following steps: if detecting that the invalid data volume of at least one first physical block exceeds a first data threshold, switching to a data migration mode, writing data in the first physical block in a multi-layer storage mode; and moving the valid data of the at least one first physical block to the blank physical block in a single-layer storage mode. According to the embodiment of the invention, garbage collection of TLC blocks is realized; the problem that the effective data occupancy rate in the TLC blocks is low can be solved, a large amount of resource consumption is avoided, and the performance of the system is improved; besides, more first physical blocks are released, so that when a user needs to write data, the original data blocks do not need tobe erased and then written, the erasing frequency of the TLC blocks is reduced, and the service life of the TLC blocks is prolonged.
Description
technical field [0001] Embodiments of the present invention relate to memory technologies, and in particular, to a memory and a control method and device thereof. Background technique [0002] The eMMC (Embedded Multi Media Card, embedded multimedia) chip is an embedded memory mainly for products such as mobile phones or tablet computers. The eMMC chip integrates a controller that provides a standard interface and manages flash memory, so that mobile phone manufacturers using eMMC chips can focus on other parts of product development and shorten the time to market. [0003] The eMMC chip is mainly composed of a controller and a flash memory particle. Data is stored in the flash memory particle through a write operation, and data is read from the flash memory particle through a read operation. At present, the mainstream flash memory in the market is NAND flash, which has the advantages of small size, large capacity, and fast rewriting speed. It is suitable for storing large ...
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IPC IPC(8): G06F3/06
CPCG06F3/0608G06F3/064G06F3/0647G06F3/0679
Inventor 庄开锋王硕
Owner GIGADEVICE SEMICON (BEIJING) INC