公开(公告)号：US09329995B2

公开(公告)日：2016-05-03

申请号：US14548549

申请日：2014-11-20

Applicant: VIA TECHNOLOGIES, INC.

Inventor： Liang Chen ,  Chen Xiu

IPC: G06F12/02 ,  G06F11/14

CPC classification number: G06F12/0246 ,  G06F11/1441 ,  G06F2212/7201 ,  Y02D10/13

Abstract: The invention provides a memory device. The memory device includes a flash memory, a memory, and a controller. The flash memory includes a plurality of blocks for data storage. The memory stores an address mapping table recording relationships between logical addresses and physical addresses of the blocks therein. The controller divides the address mapping table stored in the memory to a plurality of mapping table units, updates relationships between the logical addresses and the physical addresses stored in the mapping table units, determines whether data access performed to the flash memory fulfills the conditions of a specific requirement, and when the data access fulfills the conditions of the specific requirement, the controller selects a target mapping table unit from the mapping table units, and stores the target mapping table unit and a corresponding time stamp as a mapping table unit data to the flash memory.

Abstract translation: 本发明提供一种存储装置。 存储器件包括闪存，存储器和控制器。 闪存包括用于数据存储的多个块。 存储器存储记录其中的块的逻辑地址和物理地址之间的关系的地址映射表。 控制器将存储在存储器中的地址映射表分成多个映射表单元，更新存储在映射表单元中的逻辑地址和物理地址之间的关系，确定对闪速存储器执行的数据访问是否满足条件 特定要求，并且当数据访问满足特定要求的条件时，控制器从映射表单元中选择目标映射表单元，并将目标映射表单元和对应的时间戳作为映射表单元数据存储到 闪存