STORAGE DEVICE INCLUDING NONVOLATILE MEMORY DEVICE AND GARBAGE COLLECTION METHOD THEREOF
    1.
    发明申请
    STORAGE DEVICE INCLUDING NONVOLATILE MEMORY DEVICE AND GARBAGE COLLECTION METHOD THEREOF 审中-公开
    包含非易失性存储器件的存储器件及其收集方法

    公开(公告)号:US20160267004A1

    公开(公告)日:2016-09-15

    申请号:US15064185

    申请日:2016-03-08

    IPC分类号: G06F12/02

    摘要: A storage device is provided as follows. A nonvolatile memory device includes blocks, each block having sub-blocks erased independently. A memory controller performs a garbage collection operation on the nonvolatile memory device by selecting a garbage collection victim sub-block among the sub-blocks and erasing the selected garbage collection victim sub-block to generate a free sub-block. The memory controller selects the garbage collection victim sub-block using valid page information of each sub-block and valid page information of memory cells adjacent to each sub-block.

    摘要翻译: 存储装置如下提供。 非易失性存储器件包括块,每个块具有独立擦除的子块。 存储器控制器通过选择子块中的垃圾收集受害者子块并擦除所选择的垃圾收集受害者子块以产生空闲子块来对非易失性存储器件执行垃圾回收操作。 存储器控制器使用每个子块的有效页面信息和与每个子块相邻的存储器单元的有效页面信息来选择垃圾回收受害者子块。