发明授权
US08700840B2 Nonvolatile memory with write cache having flush/eviction methods
有权
具有写入缓存的非易失性存储器具有刷新/驱逐方法
- 专利标题： Nonvolatile memory with write cache having flush/eviction methods
- 专利标题（中）： 具有写入缓存的非易失性存储器具有刷新/驱逐方法
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申请号： US12348895申请日： 2009-01-05
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公开(公告)号： US08700840B2公开(公告)日： 2014-04-15
- 发明人: Alexander Paley , Sergey Anatolievich Gorobets , Eugene Zilberman , Alan David Bennett , Shai Traister , Andrew Tomlin , William S. Wu , Bum Suck So
- 申请人： Alexander Paley , Sergey Anatolievich Gorobets , Eugene Zilberman , Alan David Bennett , Shai Traister , Andrew Tomlin , William S. Wu , Bum Suck So
- 申请人地址： US TX Plano
- 专利权人： Sandisk Technologies, Inc.
- 当前专利权人： Sandisk Technologies, Inc.
- 当前专利权人地址： US TX Plano
- 代理机构： Davis Wright Tremaine LLP
- 主分类号： G06F12/08
- IPC分类号： G06F12/08 ; G11C11/34
摘要：
A portion of a nonvolatile memory is partitioned from a main multi-level memory array to operate as a cache. The cache memory is configured to store at less capacity per memory cell and finer granularity of write units compared to the main memory. In a block-oriented memory architecture, the cache has multiple functions, not merely to improve access speed, but is an integral part of a sequential update block system. Decisions to archive data from the cache memory to the main memory depend on the attributes of the data to be archived, the state of the blocks in the main memory portion and the state of the blocks in the cache portion.
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