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:
Apr. 17, 2018
Filed:
Sep. 15, 2014
Applicant:
Stmicroelectronics International N.v., Amsterdam, NL;
Inventors:
Assignee:
STMicroelectronics International N.V., Schiphol, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/0862 (2016.01); G06F 12/1027 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0862 (2013.01); G06F 12/1027 (2013.01); G06F 2212/602 (2013.01); G06F 2212/654 (2013.01);
Abstract
A memory management system for managing a memory and includes a multi-stage memory management unit including control circuitry and cache memory. The cache memory may have a respective translation look-aside buffer for each stage of the multi-stage memory management unit. The control circuitry may be configured to generate a blank data request including a virtual address and information that specifies that data is not to be read from the memory, perform address translations based on the generated blank data request in multiple stages until a physical address is obtained, and discard the blank data request.