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System data storage method, memory controller and memory storage device

A memory controller and system data technology, applied in memory systems, electrical digital data processing, instruments, etc., can solve problems such as incomplete data in physical blocks, writing failures, and failure of normal operation of memory storage devices to achieve safety stored effect

Active Publication Date: 2020-02-28
PHISON ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, during the operation of the memory storage device, writing may fail due to abnormal power failure and cause incomplete data to be stored in the physical block
In particular, if the stored new management information has too many error bits due to abnormal power failure and the old management information has been erased, the memory controller cannot load any management information and the memory storage device cannot function normally. operate

Method used

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  • System data storage method, memory controller and memory storage device
  • System data storage method, memory controller and memory storage device
  • System data storage method, memory controller and memory storage device

Examples

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Embodiment Construction

[0077] Generally speaking, a memory storage device (also called a memory storage system) includes a rewritable non-volatile memory storage module and a controller (also called a control circuit). Typically memory storage devices are used with a host system so that the host system can write data to or read data from the memory storage device.

[0078] figure 1 It is a schematic diagram of a host system and a memory storage device shown in an embodiment of the present invention.

[0079] Please refer to figure 1 , the host system 1000 generally includes a computer 1100 and an input / output (input / output, I / O for short) device 1106 . The computer 1100 includes a microprocessor 1102 , a random access memory (RAM for short) 1104 , a system bus 1108 and a data transmission interface 1110 . The input / output device 1106 includes such as figure 2 mouse 1202, keyboard 1204, monitor 1206 and printer 1208. It is important to understand that figure 2 The devices shown are not limite...

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Abstract

The invention provides a system data storage method used for a memorizer storage device and a memorizer controller and the memorizer storing device using the method. The method includes the step of judging whether residual storage space of a system entity erasing unit is large enough for storing updated system data, and further includes the steps of selecting an empty entity erasing unit when the system entity erasing unit is not large enough for storing the updated system data, writing the updated system data into at least a first entity programming unit of the selected entity erasing unit and writing virtual data into a second entity programming unit of the selected entity erasing unit.

Description

technical field [0001] The present invention relates to a data storage method, in particular to a system data storage method for a rewritable non-volatile memory storage module, a memory controller and a memory storage device. 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 fast memory as a storage medium. Therefore, the fast memory industry has become a very popular part of the electronics industry in recent years. [0003] The flash memory has a plurality of physical blocks, and each physical block has a plurality of physica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06G06F11/08G06F12/0804
Inventor 程顺彬
Owner PHISON ELECTRONICS