发明授权
US08448046B2 Memory access method capable of reducing usage rate of problematic memory blocks
有权
能够降低有问题的存储器块的使用率的存储器存取方法
- 专利标题： Memory access method capable of reducing usage rate of problematic memory blocks
- 专利标题（中）： 能够降低有问题的存储器块的使用率的存储器存取方法
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申请号： US12260139申请日： 2008-10-29
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公开(公告)号： US08448046B2公开(公告)日： 2013-05-21
- 发明人: Chi-Hsiang Hung
- 申请人： Chi-Hsiang Hung
- 申请人地址： TW Jhubei, Hsinchu County
- 专利权人： Silicon Motion, Inc.
- 当前专利权人： Silicon Motion, Inc.
- 当前专利权人地址： TW Jhubei, Hsinchu County
- 代理机构： McClure, Qualey & Rodack, LLP
- 优先权： TW97136853A 20080925
- 主分类号： G06F11/00
- IPC分类号： G06F11/00
摘要：
Methods and devices capable of erasing a flash memory evenly are provided, in which a flash memory comprises a data region with a plurality of data blocks and a spare region with a plurality of spare blocks, and a controller retrieves a corresponding data with a check code from a first data block of the flash memory according to a read command from a host, performs a predetermined check to the corresponding data by the check code, determines whether an error is correctable when a check result of the predetermined check represents that the error has occurred, and increases an erase count of the first data block by a predetermined value when the error is correctable.
公开/授权文献
- US20100077132A1 MEMORY DEVICES AND ACCESS METHODS THEREOF 公开/授权日：2010-03-25
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