Memory and control method and device thereof

Abstract

The embodiment of the invention discloses a memory and a control method and device thereof. The memory comprises a storage device, the storage device comprises a plurality of data blocks, each data block comprises a plurality of pages, and the control method comprises the following steps of: searching an initial logic address corresponding to a last write command during last power-on after power-on, and searching a last write page corresponding to the last write command from all pages reserved with the initial logic address; if it is detected that the data storage type reserved in the last write-in page is continuous data, it is judged that power failure occurs when data is written into the last write-in page. In the embodiment of the invention, the last write-in page corresponding to thewrite command is searched, and whether the power failure occurs in the last write-in page or not is judged according to the data storage type of the last write-in page, so that the control device canjudge whether the power failure occurs or not and can also determine the write-in progress when the power failure occurs, and the judgment of the power failure and the write-in progress is effectivelyrealized.

Description

technical field [0001] Embodiments of the present invention relate to memory technologies, and in particular, to a memory and a method and device for controlling the same. Background technique [0002] There are many memories integrated in electronic products such as mobile phones or tablet computers, such as eMMC memory. A controller is integrated in this type of memory, which can provide standard interfaces and manage flash memory, so that mobile phone manufacturers using memory can focus on other parts of product development and shorten the time to market. [0003] The memory 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 non-flash NAND flash, which has the advantages of small size, large capacity, and fast rewriting speed. It is suitable for storing large...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a memory and its control method and device to solve the problem in the prior art that power failure cannot be detected and the operation progress cannot be determined during power failure

Images