Invention Grant
- Patent Title: Systems, methods, and apparatus for frequency reset of a memory
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Application No.: US15170742Application Date: 2016-06-01
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Publication No.: US10331526B2Publication Date: 2019-06-25
- Inventor: Edwin Jose , Tao Wang
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Main IPC: G06F11/14
- IPC: G06F11/14 ; G06F3/06 ; G06F13/16

Abstract:
Some aspects of the disclosure include a self-refresh entry sequence for a memory, such as a DRAM, that may be used to avoid a frequency mismatch between a system processor and a system memory. The self-refresh entry sequence may signal the memory to reset the frequency set point state and default to the power-up state upon a self-refresh process exit. In another aspect, a new mode register may be used to indicate that the frequency set point needs to be reset after the next self-refresh entry command. In this aspect, the processor will execute a mode register write command followed by a self-refresh entry in response to the occurrence of a crash event. Then, the memory will reset to the default frequency set point by the end of self-refresh entry execution.
Public/Granted literature
- US20170031785A1 SYSTEMS, METHODS, AND APPARATUS FOR FREQUENCY RESET OF A MEMORY Public/Granted day:2017-02-02
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