发明授权
US07925843B2 Memory controller having a plurality of memory regions for protection against power failure 有权
存储器控制器具有用于防止电源故障的多个存储区域

  • 专利标题: Memory controller having a plurality of memory regions for protection against power failure
  • 专利标题(中): 存储器控制器具有用于防止电源故障的多个存储区域
  • 申请号: US11032213
    申请日: 2005-01-11
  • 公开(公告)号: US07925843B2
    公开(公告)日: 2011-04-12
  • 发明人: Keizo UenoMasaki Okamoto
  • 申请人: Keizo UenoMasaki Okamoto
  • 申请人地址: JP Kawasaki
  • 专利权人: Fujitsu Limited
  • 当前专利权人: Fujitsu Limited
  • 当前专利权人地址: JP Kawasaki
  • 代理机构: Staas & Halsey LLP
  • 主分类号: G06F13/14
  • IPC分类号: G06F13/14
Memory controller having a plurality of memory regions for protection against power failure
摘要:
A memory controller (1) writes data continuously to a first and a second blocks (20A), (20B) which are provided by dividing a memory region of a nonvolatile memory (2), and reads the data therefrom. The controller includes: a first writer (12A) which writes data to the first block (20A); and a second writer (12B) which writes data to the second block (20B) after completion of the writing by the first writer (12A) and a lapse of a waiting time generally equal to a length of time necessary for a power breakdown to drop a power source voltage down to a voltage value to at least disable the writing of data to the memory region.
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