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. 31, 2023
Filed:
Jul. 30, 2021
Qualcomm Incorporated, San Diego, CA (US);
Girish Bhat, San Diego, CA (US);
Subbarao Palacharla, San Diego, CA (US);
Jeffrey Shabel, San Diego, CA (US);
Isaac Berk, San Diego, CA (US);
Kedar Bhole, San Diego, CA (US);
Vipul Gandhi, San Diego, CA (US);
George Patsilaras, San Diego, CA (US);
Sparsh Singhai, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Integrated circuits (ICs) employ subsystem shared cache memory for facilitating extension of low-power island (LPI) memory. An LPI subsystem and primary subsystems access a memory subsystem on a first access interface in a first power mode and the LPI subsystem accesses the memory subsystem by a second access interface in the low power mode. In the first power mode, the primary subsystems and the LPI subsystem may send a subsystem memory access request including a virtual memory address to a subsystem memory interface of the memory subsystem to access either data stored in an external memory or a version of the data stored in a shared memory circuit. In the low-power mode, the LPI subsystem sends an LPI memory access request including a direct memory address to an LPI memory interface of the memory subsystem to access the shared memory circuit to extend the LPI memory.