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:
May. 14, 2019

Filed:

Jan. 30, 2015
Applicant:

Gigadevice Semiconductor (Beijing) Inc., Beijing, CN;

Inventors:

Baokui Li, Beijing, CN;

Jinghua Wang, Beijing, CN;

Nanfei Wang, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 12/14 (2006.01); G06F 21/60 (2013.01); G11C 16/22 (2006.01); G06F 21/79 (2013.01);
U.S. Cl.
CPC ...
G06F 3/0604 (2013.01); G06F 3/062 (2013.01); G06F 3/064 (2013.01); G06F 3/0659 (2013.01); G06F 3/0679 (2013.01); G06F 12/14 (2013.01); G06F 21/60 (2013.01); G06F 21/79 (2013.01); G11C 16/22 (2013.01); G06F 2221/2143 (2013.01);
Abstract

A flash controller and a control method for the flash controller. The flash controller comprises an instruction bus interface, a data bus interface, a configuration register, an erase access filter module, a read/write access filter module and a flash control module. The read/write access filter module is configured to receive control information and determine whether the read/write access is sent to the flash control module or not. The erase access filter module is configured to receive control information and determine whether the erase access is sent to the flash control module or not. The flash control module is configured to complete an access to a flash memory. The present disclosure is used to protect programs from being stolen by a client, and also protect against a situation where companies collaboratively developing a program are able to steal programs from one another.


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