Invention Grant
- Patent Title: Memory access management for low-power use cases of a system on chip via secure non-volatile random access memory
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Application No.: US15798116Application Date: 2017-10-30
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Publication No.: US10591975B2Publication Date: 2020-03-17
- Inventor: Yanru Li , Azzedine Touzni , Dexter Tamio Chun
- 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
- Main IPC: G06F1/32
- IPC: G06F1/32 ; G06F1/3246 ; G06F15/78 ; G06F1/3234 ; G06F9/4401 ; G06F21/81 ; G06F1/3287 ; G06F21/79 ; G06F21/57

Abstract:
Systems and methods are disclosed for managing memory access for low-power use cases of a system on chip. One such method comprises booting a system on chip (SoC) comprising a plurality of SoC processing devices. A trusted channel is created to a secure non-volatile random access memory (NVRAM). The method determines a power-saving software program to be executed on the SoC by one of the plurality of SoC processing devices. A software image associated with the power-saving software program is loaded to the secure NVRAM. In response to loading the software image to the secure NVRAM, each of the plurality of SoC processing devices except the one executing the software image from the secure NVRAM are powered down.
Public/Granted literature
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