Memory Device And Memory Control Method

According to one embodiment, a memory device saves data of a volatile memory to a first nonvolatile memory in response to an event of power loss. After recovery of power, based on management data indicating a relationship between an identifier of each of programs executed by a host system and addres...

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1. Verfasser: TADAAKI KINOSHITA
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:According to one embodiment, a memory device saves data of a volatile memory to a first nonvolatile memory in response to an event of power loss. After recovery of power, based on management data indicating a relationship between an identifier of each of programs executed by a host system and address data of each of a plurality of regions of the volatile memory being used respectively by the programs, the memory device identifies a region of the first nonvolatile memory where the data of the region of the volatile memory being used by a first program of the programs before the power loss has been saved. The memory device restores the data stored in the identified region into a first region of the volatile memory newly allocated to the first program by the host system. 本发明的实施方式提供能够将易失性存储器的状态还原为对主机系统有用的状态的存储装置以及存储控制方法。实施方式的存储装置响应于电源切断的事件,将易失性存储器的数据保存到第非易失性存储器中。在电源恢复后,存储装置基于表示由主机系统执行的多个程序的标识符与由所述多个程序使用的所述易失性存储器的多个区域各自的地址信息的对应关系的管理信息、和从主机系统接收的第程序的标识符,对保存由所述第程序在电源切断前所使用的所述易失性存储器的区域的数据的所述第非易失性存储器的区域进行识别,将存储在所述识别出的所