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Data write-in method, memory control circuit unit and memory storage device

A technology for data writing and control circuits, applied in the direction of input/output to record carriers, etc., which can solve the problems of low garbage collection efficiency and invalid FAT data, etc.

Inactive Publication Date: 2015-10-14
PHISON ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the same physical erasing unit, since the update of the FAT will cause the old FAT data to become invalid, so there will be many invalid data segments in the same physical erasing unit
If these invalid data segments account for 10%, it means that 90% of the data needs to be moved during garbage collection operations, making garbage collection less efficient

Method used

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  • Data write-in method, memory control circuit unit and memory storage device
  • Data write-in method, memory control circuit unit and memory storage device
  • Data write-in method, memory control circuit unit and memory storage device

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Embodiment Construction

[0082] [First Exemplary Embodiment]

[0083] figure 1 is a schematic diagram of a host system and a memory storage device according to an exemplary embodiment of the present invention.

[0084] 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 limited to the input / output device 1106, which may also include other devices.

[0085] In the embodiment of the present invention, the memory storage device 100 is electrically connected with other components of the host system 1000 through the data transmission interface 1110 . Data can be written int...

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Abstract

The invention provides a data write-in method, a memory control circuit unit and a memory storage device. The data write-in method comprises the step of dividing logic units into a first region and at least one second region according to the number of write-in times of the logic units configured at the memory storage device, and also comprises the steps of: judging whether the logic unit corresponding to the received data belongs to the first region or not; when the logic unit corresponding to the received data belongs to the first region, programming the received data to a first action physical erasing unit; and when the logic unit corresponding to the received data does not belong to the first region, programming the received data to a second action physical erasing unit. Therefore the efficiency of the garbage collection operation can be effectively enhanced.

Description

technical field [0001] The invention relates to a data writing method for a rewritable non-volatile memory, a memory control circuit unit and a memory storage device. 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 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] In a rewritable non-volatile memory storage device, such as a solid-state hard disk, the control chip system of the solid-state hard disk needs to move and reorganize the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
Inventor 梁鸣仁
Owner PHISON ELECTRONICS
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