公开(公告)号：US11126558B2

公开(公告)日：2021-09-21

申请号：US16728294

申请日：2019-12-27

Applicant: Silicon Motion, Inc.

Inventor： Wei-Lin Kao ,  Yang-Chih Shen ,  Jian-Yu Chen

IPC: G06F12/08 ,  G06F12/0882 ,  G06F12/0873 ,  G06F9/54 ,  G06F13/16 ,  G06F12/02

Abstract: A high-performance data storage device is disclosed. A controller updates a sub mapping table on the temporary storage in response to a write command of the non-volatile memory issued by a host. The mapping sub-table corresponds to a logical group involved in the write command and is downloaded from the non-volatile memory. When the mapping sub-table has not been completely downloaded to the temporary storage memory, the controller pushes the write command to a waiting queue to avoid dragging the performance of the data storage device.

公开(公告)号：US11182286B2

公开(公告)日：2021-11-23

申请号：US16585583

申请日：2019-09-27

Applicant: Silicon Motion, Inc.

Inventor： Jian-Yu Chen ,  Bo-Yan Jhan ,  Yuh-Jang Lo ,  Shih-Chang Chang

IPC: G06F12/02

Abstract: A high-performance data storage device is disclosed. A non-volatile memory stores a logical-to-physical address mapping table that maps logical addresses recognized by a host to a physical space in the non-volatile memory. The logical-to-physical address mapping table is divided into a plurality of sub mapping tables. A memory controller utilizes temporary storage when controlling the non-volatile memory. The memory controller plans a sub mapping table area in the temporary storage to store sub mapping tables corresponding to a plurality of nodes which are linked and managed by multiple linked lists.