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    • 1. 发明申请
    • MANAGEMENT DEVICE AND MANAGEMENT METHOD
    • 管理设备和管理方法
    • US20120215964A1
    • 2012-08-23
    • US13357873
    • 2012-01-25
    • Nobuhiro KANEKOShusuke SaekiKenji FudonoKazunori Yamamoto
    • Nobuhiro KANEKOShusuke SaekiKenji FudonoKazunori Yamamoto
    • G06F12/06G06F12/02
    • G06F12/0246G06F2212/7204
    • There is provided a management device including a management unit that manages a nonvolatile memory configured to allow data to be written, read, or erased electrically, allow writing and reading to be performed in units of a page, and allow erasing to be performed in units of a block including a plurality of pages. The management unit divides a plurality of physical blocks of the nonvolatile memory into a virtual area including virtual blocks corresponding to the physical blocks, and an alternate area including alternate blocks for replacing defective physical blocks in the virtual area, manages the nonvolatile memory in management units of three stages including management of the physical blocks, management of the virtual blocks, and management of extended blocks, and writes to the nonvolatile memory first, second, and third management information for use in the management of the physical blocks, the virtual blocks, and the extended blocks, respectively.
    • 提供了一种管理装置,其包括:管理单元,管理非易失性存储器,其被配置为允许电子地写入,读取或擦除数据,允许写入和读取以页面为单位执行,并且允许以单元执行擦除 包括多个页面的块。 管理单元将非易失性存储器的多个物理块划分成包括与物理块相对应的虚拟块的虚拟区域,以及包括用于替换虚拟区域中的有缺陷的物理块的替代块的备用区域,以管理单元管理非易失性存储器 包括物理块的管理,虚拟块的管理和扩展块的管理,以及用于物理块的管理的第一,第二和第三管理信息,虚拟块, 和扩展块。