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Memory block of flash memory sign method

A storage block and identification technology, applied in information storage, static memory, read-only memory, etc., can solve the problems of reducing the data writing efficiency, time data writing time, and consumption of flash memory, and improve data writing speed, The effect of improving efficiency

Inactive Publication Date: 2008-04-16
AIGO DIGITAL TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, data writing takes up unnecessary waiting time due to the need to erase data first, consumes the entire data writing time, and reduces the efficiency of data writing in flash memory

Method used

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  • Memory block of flash memory sign method
  • Memory block of flash memory sign method
  • Memory block of flash memory sign method

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Experimental program
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Embodiment Construction

[0023] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined purpose, the storage block structure of the flash memory of the present invention and its identification method, its specific implementation, structural features and its effects will be described in detail below in conjunction with the accompanying drawings and embodiments as follows.

[0024] see figure 2 The storage block area of ​​the flash memory of the present invention is divided into a data area and an identification area corresponding to the data area. The identification area includes a logical address identification area, a data status identification area, a recording area and a read-write control area. The logical address identification area of ​​the identification area marks the logical address identification of the corresponding data area. The flash memory has a control circuit. When the flash memory is powered on and used, the control circ...

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Abstract

The invention provides a method for identifying a flash memory block. An identification area of the flash memory block is divided into a logical address identification section, a data status identification section and a reading and writing control section, the logical address identification section is corresponding to a logical address identification of an identification data section, the data status identification section is corresponding to an idle state, a busy state and an erasing state of the identification data section respectively and the reading and writing control section is corresponding to a storing state, a to-be-written state and an erasing state of a data recording section. When a data storing section which data needs to be written to is stored with data, the erasing operation time of the data section during the course of writing data is omitted and the data writing speed of the flash memory data is improved. When the flash memory is not in data read-write status, erasing operation is conducted for the erased data section of the reading and writing control section, the erased data section is sorted according to the loss equalization algorithm and the logical address identification section of the data region is updated at the same time, which improves the flash memory operation efficiency and ensures the service life of the flash memory.

Description

【Technical field】 [0001] The invention relates to a method for managing a storage block of a flash memory (Flash Memory), in particular to a method for identifying a storage block of a flash memory. 【Background technique】 [0002] In recent years, flash memory (Flash Memory) has developed rapidly due to its lack of mechanical parts, high reliability, and power saving. Flash memory has no moving parts, so it has strong shock resistance; at the same time, it can make the machine run without noise, and it will be quieter during operation. Therefore, flash memory is widely used in consumer electronics products such as memory cards, MP3 players, and notebook computers. It is in line with the development trend of consumer electronics products with small size, light weight, fast speed and easy portability. [0003] Such as figure 1 As shown, the storage block of the existing flash memory is divided into a data area and an identification area, and the identification area is marke...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C16/06
Inventor 周朝晖梁炜
Owner AIGO DIGITAL TECHNOLOGY CO LTD
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