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.