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:
May. 29, 2018
Filed:
Mar. 23, 2017
Applicant:
Arm Limited, Cambridge, GB;
Inventors:
Alan Jeremy Becker, Bushey, GB;
Peter Logan Harrod, Cambridge, GB;
Assignee:
ARM Limited, Cambridge, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/12 (2006.01); G01R 31/3187 (2006.01); G06F 11/08 (2006.01); G06F 12/14 (2006.01);
U.S. Cl.
CPC ...
G11C 29/12 (2013.01); G01R 31/3187 (2013.01); G06F 11/08 (2013.01); G06F 12/1433 (2013.01); G06F 2212/1052 (2013.01);
Abstract
A data processing apparatus includes a memory and memory protection circuitry for providing an operational path to the memory during operational use of the memory. A memory built-in self-test controllerperforms built-in self-test operations upon the memory using either an indirect test access path to the memory via the memory protection circuitry or a direct test access path to the memory which bypasses the memory protection circuitry. Thus, the correct operation of the memory protection circuitry itself can be tested in addition to the correct operation of the memory.