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Data writing method, memory controller and memory storage device

A memory controller, data writing technology, applied in the direction of input/output to record carrier, memory address/allocation/relocation, etc., can solve the problem of shortening the life of flash memory storage devices, and achieve the effect of prolonging life and long life

Active Publication Date: 2017-04-19
PHISON ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the erasing times of the physical blocks that make up the physical unit are limited (for example, the physical block will be damaged after being erased 10,000 times), so frequently erasing the physical unit will greatly shorten the life of the flash storage device

Method used

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  • Data writing method, memory controller and memory storage device
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  • Data writing method, memory controller and memory storage device

Examples

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Embodiment Construction

[0054] Generally speaking, a memory storage device (also called a memory storage system) includes a non-volatile memory 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.

[0055] Figure 1A It is a host system and a memory storage device according to an exemplary embodiment of the present invention.

[0056] Please refer to Figure 1A , the host system 1000 generally includes a computer 1100 and an input / output (I / O) device 1106 . The computer 1100 includes a microprocessor 1102 , a random access memory (random access memory, RAM) 1104 , a system bus 1108 and a data transmission interface 1110 . The input / output device 1106 includes such as Figure 1B mouse 1202, keyboard 1204, monitor 1206 and printer 1208. It is important to understand that Figure 1B The devices shown are not limited to the input / output device 1106, w...

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PUM

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Abstract

The invention provides a data writing-in method, a memory controller and a memory storage device. The data writing-in method comprises the following steps: grouping a plurality of entity blocks into a plurality of entity units, grouping the entity units into data zones and idle zones at least, and configuring a plurality of logic units so as to map the entity units belonging to the data zones. The data writing-in method further comprises the following steps: extracting one entity unit from the entity units belonging to the idle zones, writing at least one data which belongs to at least one logic unit of the logic units in the extracted entity unit, writing an ending mark in the extracted entity unit, and connecting the ending mark behind the data belonging to the logic unit in the extracted entity unit. Therefore, the entity units can be effectively used, and the service life of the memory storage device can be prolonged.

Description

[0001] This application is a divisional application with the application number 201010504333.X submitted on October 8, 2010, and the title of the invention is data writing method, memory controller and memory storage device. technical field [0002] The invention relates to a data writing method, in particular to a data writing method for a non-volatile memory module and a memory controller and a memory storage device using the method. Background technique [0003] The rapid development of digital cameras, mobile phones and MP3 players in the past few years has led to a rapid increase in consumers' demand for digital content storage. Because flash memory (Flash Memory) has the characteristics of data non-volatility, power saving, small size and no mechanical structure, it is suitable for users to carry it as a storage medium for digital file transmission and exchange. [0004] Traditionally, flash storage devices have been primarily used to store user data. For example, use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/06G06F3/06
Inventor 黄意翔
Owner PHISON ELECTRONICS