System-on-Chip with DVFM Protection Circuit
    32.
    发明公开

    公开(公告)号:US20230259189A1

    公开(公告)日:2023-08-17

    申请号:US17673870

    申请日:2022-02-17

    Applicant: Apple Inc.

    CPC classification number: G06F1/28

    Abstract: A system includes multiple hardware circuits and protection circuitry. The multiple hardware circuits are coupled to respective power domains having respective sets of domain-specific power settings. The protection circuitry is configured to monitor requests in which one or more of the hardware circuits request transitions between the domain-specific power settings, to determine, from among multiple system-level combinations of the domain-specific power settings, a subset of system-level combinations that could potentially be traversed in performing the requested transitions, and to initiate a responsive action upon detecting that any of the system-level combinations in the subset is specified as invalid.

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