发明授权
US06871259B2 File system including non-volatile semiconductor memory device having a plurality of banks
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文件系统包括具有多个存储体的非易失性半导体存储器件
- 专利标题： File system including non-volatile semiconductor memory device having a plurality of banks
- 专利标题（中）： 文件系统包括具有多个存储体的非易失性半导体存储器件
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申请号： US10166636申请日： 2002-06-12
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公开(公告)号： US06871259B2公开(公告)日： 2005-03-22
- 发明人: Masato Hagiwara , Mamoru Sakamoto
- 申请人： Masato Hagiwara , Mamoru Sakamoto
- 申请人地址： JP Tokyo
- 专利权人： Renesas Technology Corp.
- 当前专利权人： Renesas Technology Corp.
- 当前专利权人地址： JP Tokyo
- 代理机构： McDermott Will & Emery LLP
- 优先权： JP2001-377610 20011211
- 主分类号： G06F12/16
- IPC分类号： G06F12/16 ; G06F12/00 ; G06F12/02
摘要：
A flash memory includes a data bank having a plurality of banks, a merge bank, and an update data bank. A file system using the flash memory includes a unit storing update data corresponding to a data rewrite command into the update data bank, a unit selecting the latest update data for each block from update data stored in the update data bank when the update data bank becomes full, and a processing unit processing the latest update data. The processing unit includes a unit storing latest update data into a merge bank, a unit selecting data associated with the latest update data from the data bank to store the selected data into the merge bank, and a unit setting the merge bank as a new data bank.
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