Mapping information recording method, memory controller and memory storage device

Abstract

The invention provides a mapping information recording method, a memory controller and a memory storage device, which are used for a rewritable nonvolatile memory module. The method comprises the following steps: configuring multiple logic addresses; establishing at least one logic address mapping table and storing the at least one logic address mapping table to the rewritable nonvolatile memory module; the method also comprises the following steps: receiving data to be stored to multiple continuous logic addresses from a host system; writing the data to multiple entity programmable units; updating mapping relations between the continuous logic addresses and the entity programmable units in a corresponding logic address mapping table loaded into a buffer memory; storing a continuous mapping table in the buffer memory, and recording continuous mapping records which correspond to the continuous logic addresses in the continuous mapping table.

Description

technical field [0001] The present invention relates to a mapping information recording method, a memory controller and a memory storage device, in particular to a mapping information recording method for a rewritable non-volatile memory and a memory controller and a memory storage device using the method. Background technique [0002] Digital cameras, mobile phones, and MP3 players have grown rapidly in recent years, making consumers' demand for storage media also increase rapidly. Since rewritable non-volatile memory (rewritable non-volatile memory) has the characteristics of data non-volatility, power saving, small size, no mechanical structure, fast read and write speed, etc., it is most suitable for portable electronic products, such as laptop. A solid state drive is a storage device that uses flash memory as a storage medium. Therefore, the flash memory industry has become a very popular part of the electronics industry in recent years. [0003] Generally speaking, ...

AI Technical Summary

Problems solved by technology

However, generally speaking, the random access memory space of the flash memory storage system is limited, therefore, how to effectively record the mapping relationship between the logical address and the physical address to improve the data access speed is the goal of those skilled in the art.

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