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.
Patent No.:
Date of Patent:
Oct. 27, 2020
Filed:
Oct. 26, 2017
Silicon Laboratories Inc., Austin, TX (US);
Partha Sarathy Murali, San Jose, CA (US);
Venkata Siva Prasad Pulagam, Secunderabad, IN;
Sailaja Dharani Naga Sankabathula, San Jose, CA (US);
Venkat Rao Gunturu, Hyderabad, IN;
Subba Reddy Kallam, Los Altos Hills, CA (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
A flash memory controller is operative to receive serial commands and command arguments. A flash permissions table identifies each segment of flash memory as READ_ONLY, PRIVATE_R/W or OPEN_R/W. A memory interface is coupled to a flash memory and also the flash permissions table. When a flash memory write operation is received with an associated command argument corresponding to an address indicated as READ_ONLY in the flash permissions table and a DISABLE_WR_REG is true, the write operation is ignored or converted into a non-write command and issued to the flash memory.