发明申请
US20080209114A1 Reliability High Endurance Non-Volatile Memory Device with Zone-Based Non-Volatile Memory File System
审中-公开
具有基于区域的非易失性存储器文件系统的可靠性高耐久性非易失性存储器件
- 专利标题: Reliability High Endurance Non-Volatile Memory Device with Zone-Based Non-Volatile Memory File System
- 专利标题(中): 具有基于区域的非易失性存储器文件系统的可靠性高耐久性非易失性存储器件
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申请号: US12101877申请日: 2008-04-11
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公开(公告)号: US20080209114A1公开(公告)日: 2008-08-28
- 发明人: David Q. Chow , I-Kang Yu , Abraham Chih-Kang Ma , Ming-Shiang Shen
- 申请人: David Q. Chow , I-Kang Yu , Abraham Chih-Kang Ma , Ming-Shiang Shen
- 申请人地址: US CA San Jose
- 专利权人: Super Talent Electronics, Inc.
- 当前专利权人: Super Talent Electronics, Inc.
- 当前专利权人地址: US CA San Jose
- 主分类号: G06F12/00
- IPC分类号: G06F12/00
摘要:
Improved reliability high endurance non-volatile memory device with zone-based non-volatile memory file system is described. According to one aspect of the present invention, a zone-based non-volatile memory file system comprises a two-level address mapping scheme: a first level address mapping scheme maps linear or logic address received from a host computer system to a virtual zone address; and a second level address mapping scheme maps the virtual zone address to a physical zone address of a non-volatile memory module. The virtual zone address represents a number of zones each including a plurality of data sectors. Zone is configured as a unit smaller than data blocks and larger than data pages. Each of the data sector consists of 512-byte of data. The ratio between zone and the sectors is predefined by physical characteristics of the non-volatile memory module. A tracking table is used for correlating the virtual zone address with the physical zone address. Data programming and erasing are performed in a zone basis.
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