Autonomous core perimeter for low power processor states

    公开(公告)号:US11042213B2

    公开(公告)日:2021-06-22

    申请号:US16370950

    申请日:2019-03-30

    Abstract: Embodiments include an autonomous core perimeter, configured to save the state of a core of a multi-core processor prior to the processor package being placed into a low-power state. The autonomous core perimeter of each core is configured to save an image of a microcontroller firmware to an external store if it has not been previously saved by another core, along with the unique working state information of that core's microcontroller. Upon restore, the single microcontroller firmware image is retrieved from the external store and pushed to each core along with each core's unique working state.

    System, Apparatus And Method For Probeless Field Scan Of A Processor

    公开(公告)号:US20200096569A1

    公开(公告)日:2020-03-26

    申请号:US16142591

    申请日:2018-09-26

    Abstract: In one embodiment, a processor includes a scan system controller to control test operations on the processor in response to test commands from an external test entity, and at least one core to execute instructions. The processor may further include a field scan controller to control a field test mode of the processor to perform a self-test of the at least one core during field operation, where the field scan controller is to obtain a test pattern from an external memory and cause the scan system controller to test circuitry of the first subsystem using the test pattern. Other embodiments are described and claimed.

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