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专利名称:MEMORY CONTROLLER, NONVOLATILE
STORAGE DEVICE, NONVOLATILE STORAGESYSTEM, AND MEMORY CONTROL METHOD
发明人:Hirokazu SO,Toshiyuki HONDA申请号:US15356778申请日:20161121
公开号:US20170269870A1公开日:20170921
专利附图:
摘要:A memory controller controls a nonvolatile memory having physical blocks. Thememory controller includes a control unit and a host interface unit. The control unit
writes data into a physical block. The host interface unit receives and transmits data fromand to the external device. The control unit manages first vacant blocks and secondvacant blocks based on a physical-block management table for managing states of thephysical blocks. The first vacant block can be used in garbage collection processing ofarranging data stored in the nonvolatile memory. The second vacant block cannot beused in garbage collection processing. The control unit increases a quantity of the secondvacant blocks when the control unit does not receive an instruction from the externaldevice. The control unit writes data into the second vacant blocks when the control unitreceives an instruction for writing data from the external device.
申请人:Panasonic Intellectual Property Management Co., Ltd.
地址:Osaka JP
国籍:JP
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