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Method and controller capable of enhancing management efficiency of nonvolatile storage

A non-volatile, storage device technology, applied in the direction of response error generation, memory address/allocation/relocation, redundant code error detection, etc., can solve the problem of insufficient storage space in the system management area

Active Publication Date: 2009-10-28
PHISON ELECTRONICS
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Problems solved by technology

However, since the bytes of the error correction code required by the MLC flash memory formulation requirements will be increased to more than 10 bytes, this will cause the number of bytes in all system management areas in the initial page to be compressed to less than 6 bytes, resulting in The storage space of each system management area in the start page will not be enough

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  • Method and controller capable of enhancing management efficiency of nonvolatile storage
  • Method and controller capable of enhancing management efficiency of nonvolatile storage
  • Method and controller capable of enhancing management efficiency of nonvolatile storage

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Embodiment Construction

[0094] The technical effect that the present invention intends to achieve is mainly to improve the management efficiency of the non-volatile memory storage device and solve the error correction code byte number increase required by the MLC flash memory formulation requirements, which causes each system management in the initial page. The storage space of the zone is insufficient. The following content will provide a detailed description of the technical features and technical effects of the present invention, so as to provide reference for those skilled in the relevant fields of the present invention.

[0095] Figure 1A A system block diagram of the host 100 using the non-volatile memory storage device 120 according to an embodiment of the present invention is shown. Please refer to Figure 1A The host 100 generally includes a microprocessor 102 , a random access memory (Random Access Memory, RAM) 104 , an input / output (Input / Output, I / O) device 106 , a system bus 108 , and a...

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Abstract

The invention relates to a method and a controller capable of enhancing the management efficiency of a nonvolatile storage device, which only read data stored in a system management area of an original paging of each area block to establish a logic entity address mapping table in a buffer storage of the controller so that the management efficiency of the nonvolatile storage device is enhanced. Besides, the method and the controller can also integrate all or partial system management areas inside the original paging to more efficiently manage and use the storage space of all the system management areas inside the original paging.

Description

technical field [0001] The invention relates to a storage medium management technology, and in particular to a method and a controller capable of improving the management efficiency of a non-volatile memory storage device. Background technique [0002] In recent years, due to the rapid growth of digital cameras, mobile phones with camera functions, MP3, and MP4, consumers' demand for storage media has also increased sharply. Looking at all the storage media today, flash memory (Flash Memory) is most suitable for built-in the above-mentioned various portable devices due to its characteristics of data non-volatility, power saving, small size, and no mechanical structure. in the multimedia storage device. In addition, since external products such as small memory cards and walkmans are also in great demand for modern people, all manufacturers of flash memory are all aiming at making the capacity of flash memory larger and stable in use / management We are working hard to improve...

Claims

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Application Information

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IPC IPC(8): G06F12/02G06F11/10
Inventor 朱健华郑国义叶志刚
Owner PHISON ELECTRONICS
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