The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 27, 2021

Filed:

May. 16, 2019
Applicant:

Silicon Motion Inc., Hsinchu County, TW;

Inventors:

Guan-Yao Huang, Kaohsiung, TW;

Yu-Chih Lin, Hsinchu County, TW;

Chang-Wei Shen, Taoyuan, TW;

Assignee:

Silicon Motion, Inc., Hsinchu County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0611 (2013.01); G06F 3/0625 (2013.01); G06F 3/0634 (2013.01); G06F 3/0656 (2013.01); G06F 3/0659 (2013.01); G06F 3/0679 (2013.01);
Abstract

The present invention provides a flash memory controller, wherein the flash memory controller is arranged to access a flash memory module, the flash memory module includes a plurality of flash memory chips, the flash memory controller includes a buffer memory and a microcontroller, and the buffer memory is arranged to store an in-system programming (ISP) code. When the flash memory controller enters a power saving mode, the microcontroller disables a portion of the buffer memory to make at least one portion of the ISP code disappear; and when the flash memory controller enters a normal mode from the power saving mode, the microcontroller reads said at least one portion of the ISP code from N flash memory chips within the plurality of flash memory chips, wherein N is a positive integer greater than one.


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