Invention Grant
- Patent Title: Power-reducing memory subsystem having a system cache and local resource management
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Application No.: US15081914Application Date: 2016-03-27
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Publication No.: US09778871B1Publication Date: 2017-10-03
- Inventor: Yanru Li , Dexter Tamio Chun , Alain Artieri
- Applicant: QUALCOMM INCORPORATED
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Smith Tempel Blaha LLC/Qualcom
- Main IPC: G06F1/32
- IPC: G06F1/32 ; G06F3/06 ; G06F12/0862 ; G11C11/406 ; G11C7/10

Abstract:
Systems, methods, and computer programs are disclosed for method for reducing memory subsystem power. In an exemplary method, a system resource manager provides memory performance requirements for a plurality of memory clients to a double data rate (DDR) subsystem. The DDR subsystem and the system resource manager reside on a system on chip (SoC) electrically coupled to a dynamic random access memory (DRAM). A cache hit rate is determined of each of the plurality of memory clients associated with a system cache residing on the DDR subsystem. The DDR subsystem controls a DDR clock frequency based on the memory performance requirements received from the system resource manager and the cache hit rates of the plurality of memory clients.
Public/Granted literature
- US20170277460A1 POWER-REDUCING MEMORY SUBSYSTEM HAVING A SYSTEM CACHE AND LOCAL RESOURCE MANAGEMENT Public/Granted day:2017-09-28
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