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Data protection method, memory storage device and memory control circuit unit

A technology for data protection and storage devices, which is applied in the fields of electrical digital data processing, instruments, and response error generation. It can solve the problems of time-consuming rework process and inability to decode and use block information

Active Publication Date: 2018-10-16
PHISON ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the ECC circuits in different memory storage devices may be implemented using different encoding / decoding algorithms
Therefore, block information encoded by the controller of one memory storage device may not be decoded and usable by the controller of another memory storage device
When the rewritable non-volatile memory module is reworked by different memory storage devices, the controller of each memory storage device needs to re-scan the rewritable non-volatile memory module to obtain the physical erasing unit Block information, so that the rework process is very time-consuming

Method used

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  • Data protection method, memory storage device and memory control circuit unit
  • Data protection method, memory storage device and memory control circuit unit
  • Data protection method, memory storage device and memory control circuit unit

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Embodiment Construction

[0094] Generally speaking, a memory storage device (also called a memory storage system) includes a rewritable non-volatile memory module and a controller (also called a control circuit unit). Typically memory storage devices are used with a host system such that the host system can write data to or read data from the memory storage device.

[0095] figure 1 is a schematic diagram of a host system, a memory storage device, and an input / output (I / O) device according to an exemplary embodiment, and figure 2 It is a schematic diagram showing a host system, a memory storage device and an input / output (I / O) device according to another exemplary embodiment.

[0096] Please refer to figure 1 and figure 2 , the host system 11 generally includes a processor 111 , a random access memory (random access memory, RAM) 112 , a read only memory (read only memory, ROM) 113 and a data transmission interface 114 . The processor 111 , random access memory 112 , ROM 113 and data transmission...

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Abstract

The invention provides a data protection method, a memory storage device and a memory control circuit unit. The data protection method includes the steps of reading a first string from a rewritable nonvolatile memory module to obtain a data string; performing decoding operation according to the data string to obtain block information corresponding to a plurality of entity erasing units; inputtingthe block information to an error checking and correcting circuit of the memory storage device to generate a second string; and storing the second string in the rewritable nonvolatile memory module.

Description

technical field [0001] The invention relates to a data protection method, in particular to a data protection method for block information of a rewritable non-volatile memory module, a memory storage device and a memory control circuit unit. Background technique [0002] The rapid growth of digital cameras, mobile phones, and MP3 players has led to a rapid increase in consumer demand for storage media. 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 memory storage device that uses a flash memory module as a storage medium. Therefore, the flash memory industry has become a very popular part of the electronics industry in recent years. [0003] Generally, the rewritable non-volatile memory module is connected to a memory storage d...

Claims

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Application Information

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IPC IPC(8): G06F11/10
CPCG06F11/1068
Inventor 吴宗霖崔德昌李乾辅
Owner PHISON ELECTRONICS