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    DEVICES AND METHODS TO SECURE A SYSTEM ON A CHIP
    82.
    发明申请
    DEVICES AND METHODS TO SECURE A SYSTEM ON A CHIP 有权

    公开(公告)号：US20210390180A1

    公开(公告)日：2021-12-16

    申请号：US17340164

    申请日：2021-06-07

    Applicant: STMicroelectronics (Alps) SAS ,  STMicroelectronics International N.V.

    Inventor： Asif Rashid Zargar ,  Gilles Eyzat ,  Charul Jain

    IPC: G06F21/55

    Abstract: A system on a chip comprising a set of one-time programmable memory elements that comprises a first valid configuration; a second valid configuration; and a plurality of invalid configurations. The system on a chip also comprises a programming indicator initially comprising a first value and configured to be permanently set to a second value. The system on a chip further comprises a decoder circuit in communication with the set of one-time programmable memory elements to determine whether the set of one-time programmable memory elements is in the first valid configuration, the second valid configuration, or any one of the plurality of invalid configurations. The decoder circuit generates a threat-detection signal when the set of one-time programmable memory elements is in any of the plurality of invalid configurations when the programming indicator is permanently set to the second value.

    INTERRUPT CONTROLLER AND METHOD OF MANAGING AN INTERRUPT CONTROLLER
    83.
    发明申请
    INTERRUPT CONTROLLER AND METHOD OF MANAGING AN INTERRUPT CONTROLLER 有权

    公开(公告)号：US20210318972A1

    公开(公告)日：2021-10-14

    申请号：US17229307

    申请日：2021-04-13

    Applicant: STMicroelectronics (Alps) SAS ,  STMicroelectronics (Grenoble 2) SAS

    Inventor： Jawad Benhammadi ,  Sylvain Meyer

    IPC: G06F13/24 ,  H03K19/20 ,  G06F13/16 ,  G06F21/85

    Abstract: In accordance with an embodiment, an electronic device includes: an interrupt controller having an input for receiving a controller clock signal, and an output, the interrupt controller configured to deliver an output interrupt signal on the output when the controller clock signal is active, and a control circuit comprising, an input interface for receiving at least one interrupt signal likely to emanate from at least one item of equipment external to the device, a clock input for receiving an external clock signal, and a first controller connected to the input interface and to the clock input, the first controller configured to automatically generate the controller clock signal from the external clock signal from when the at least one interrupt signal is asserted until a delivery of a corresponding output interrupt signal.

    Method for addressing an integrated circuit on a bus and corresponding device
    85.
    发明授权
    Method for addressing an integrated circuit on a bus and corresponding device 有权

    公开(公告)号：US11106618B2

    公开(公告)日：2021-08-31

    申请号：US16908253

    申请日：2020-06-22

    Applicant: STMicroelectronics (Alps) SAS

    Inventor： Patrick Arnould

    IPC: G06F13/42 ,  G06F13/16 ,  G06F9/54 ,  G06F9/32 ,  G06F9/24 ,  G06F1/24

    Abstract: A method can be used for addressing a slave integrated circuit connected to a bus. The slave integrated circuit has a default address on the bus. The method includes receiving, at the slave integrated circuit, an addressing message conveyed on the bus. The addressing message contains a replacement address. The method also includes replacing the default address within the slave integrated circuit with the replacement address upon receiving the addressing message, restarting the slave integrated circuit, and upon the restarting, assigning the replacement address as a new default address.

    SWITCHED-MODE POWER SUPPLY WITH BYPASS MODE
    86.
    发明申请
    SWITCHED-MODE POWER SUPPLY WITH BYPASS MODE 有权

    公开(公告)号：US20210203226A1

    公开(公告)日：2021-07-01

    申请号：US17200498

    申请日：2021-03-12

    Applicant: STMicroelectronics (Alps) SAS

    Inventor： Patrik Arno

    IPC: H02M3/156

    Abstract: In an embodiment, an SMPS comprises a half-bridge, and a driver configured to drive the half-bridge based on a PWM signal. The SMPS further comprising a first circuit coupled between the output of the driver and a control terminal of a high-side transistor of the half-bridge, wherein the first circuit is configured to maintain the first transistor on when the PWM signal has a duty cycle that is substantially 100%.

    ONE-WAY FUNCTION
    90.
    发明申请
    ONE-WAY FUNCTION 有权

    公开(公告)号：US20210019448A1

    公开(公告)日：2021-01-21

    申请号：US16928901

    申请日：2020-07-14

    Applicant: STMicroelectronics (Rousset) SAS ,  STMicroelectronics (ALPS) SAS

    Inventor： Marc BENVENISTE ,  Fabien JOURNET ,  Fabrice MARINET

    IPC: G06F21/75 ,  G06F21/44 ,  H04L9/32 ,  G06F1/08 ,  G06F3/12

    Abstract: Authenticating a device using processing circuitry that generates fingerprints based on states of a plurality of nodes that are coupled to a plurality of circuits. A first fingerprint is generated at a first time based on first states of the plurality of nodes. A second fingerprint is generated at a second time based on second states of the plurality of nodes, the first fingerprint influencing the second states. Electronic data is obtained from the device to be authenticated. The electronic data is compared with a fingerprint generated and a determination whether to authorize operation of the device is made based on a result of the comparison.

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