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    Reset isolation for an embedded safety island in a system on a chip
    1.
    发明授权
    Reset isolation for an embedded safety island in a system on a chip 有权

    公开(公告)号：US11509302B2

    公开(公告)日：2022-11-22

    申请号：US17080239

    申请日：2020-10-26

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Chunhua Hu ,  Venkateswar Reddy Kowkutla ,  Charles Fuoco

    IPC: H03K17/22

    Abstract: Disclosed embodiments include an electronic system with a power on reset (POR) circuit. The POR circuit includes first voltage detection circuitry to perform a first detection on a supply voltage and to output a first control signal in response to the first detection, second voltage detection circuitry to perform a second detection on the supply voltage and to output a second control signal in response to the second detection, and third voltage detection circuitry to perform a third detection on the supply voltage and to output at least one third control signal in response to the third detection. The POR circuit further has sequencing circuitry with a first input to receive the at least one third control signal and to output a reset signal in response to the at least one third control signal.

    Reset isolation for an embedded safety island in a system on a chip
    3.
    发明授权
    Reset isolation for an embedded safety island in a system on a chip 有权

    公开(公告)号：US10819334B2

    公开(公告)日：2020-10-27

    申请号：US16299544

    申请日：2019-03-12

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Chunhua Hu ,  Venkateswar Reddy Kowkutla ,  Charles Fuoco

    IPC: H03K17/22

    Abstract: Disclosed embodiments include an electronic system with a power on reset (POR) circuit. The POR circuit includes first voltage detection circuitry to perform a first detection on a supply voltage and to output a first control signal in response to the first detection, second voltage detection circuitry to perform a second detection on the supply voltage and to output a second control signal in response to the second detection, and third voltage detection circuitry to perform a third detection on the supply voltage and to output at least one third control signal in response to the third detection. The POR circuit further has sequencing circuitry with a first input to receive the at least one third control signal and to output a reset signal in response to the at least one third control signal.

    FLEXIBLE HYBRID FIREWALL ARCHITECTURE
    4.
    发明申请
    FLEXIBLE HYBRID FIREWALL ARCHITECTURE 审中-公开

    公开(公告)号：US20200304464A1

    公开(公告)日：2020-09-24

    申请号：US16786734

    申请日：2020-02-10

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Amritpal Singh Mundra ,  Brian J. Karguth ,  Timothy Anderson ,  Kai Chirca ,  Charles Fuoco

    IPC: H04L29/06

    Abstract: A flexible hybrid firewall architecture is disclosed. A system implementing such an architecture includes an access control register, a memory having at least a region to which access is controllable by the access control register, the access control register including first field that contains a privilege identifier (ID) and a plurality of additional fields, each additional field containing control bits corresponding to a respective one of a plurality of permission levels, and control circuitry that, in response to receiving a transaction containing a transaction privilege ID, a security indicator, and a privilege indicator, controls access to the region when the transaction privilege ID matches the privilege ID contained in the first field by using the control bits of a field of the additional fields that corresponds to a security level indicated by the security indicator and a privilege level indicated by the privilege indicator of the transaction.

    Flexible hybrid firewall architecture
    5.
    发明授权
    Flexible hybrid firewall architecture 有权

    公开(公告)号：US11212256B2

    公开(公告)日：2021-12-28

    申请号：US16786734

    申请日：2020-02-10

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Amritpal Singh Mundra ,  Brian J. Karguth ,  Timothy Anderson ,  Kai Chirca ,  Charles Fuoco

    IPC: H04L29/06

    Abstract: A flexible hybrid firewall architecture is disclosed. A system implementing such an architecture includes an access control register, a memory having at least a region to which access is controllable by the access control register, the access control register including first field that contains a privilege identifier (ID) and a plurality of additional fields, each additional field containing control bits corresponding to a respective one of a plurality of permission levels, and control circuitry that, in response to receiving a transaction containing a transaction privilege ID, a security indicator, and a privilege indicator, controls access to the region when the transaction privilege ID matches the privilege ID contained in the first field by using the control bits of a field of the additional fields that corresponds to a security level indicated by the security indicator and a privilege level indicated by the privilege indicator of the transaction.

    RESET ISOLATION FOR AN EMBEDDED SAFETY ISLAND IN A SYSTEM ON A CHIP
    7.
    发明申请
    RESET ISOLATION FOR AN EMBEDDED SAFETY ISLAND IN A SYSTEM ON A CHIP 有权

    公开(公告)号：US20210044292A1

    公开(公告)日：2021-02-11

    申请号：US17080239

    申请日：2020-10-26

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Chunhua Hu ,  Venkateswar Reddy Kowkutla ,  Charles Fuoco

    IPC: H03K17/22

    Abstract: Disclosed embodiments include an electronic system with a power on reset (POR) circuit. The POR circuit includes first voltage detection circuitry to perform a first detection on a supply voltage and to output a first control signal in response to the first detection, second voltage detection circuitry to perform a second detection on the supply voltage and to output a second control signal in response to the second detection, and third voltage detection circuitry to perform a third detection on the supply voltage and to output at least one third control signal in response to the third detection. The POR circuit further has sequencing circuitry with a first input to receive the at least one third control signal and to output a reset signal in response to the at least one third control signal.

    RESET ISOLATION FOR AN EMBEDDED SAFETY ISLAND IN A SYSTEM ON A CHIP
    9.
    发明申请
    RESET ISOLATION FOR AN EMBEDDED SAFETY ISLAND IN A SYSTEM ON A CHIP 审中-公开

    公开(公告)号：US20190212794A1

    公开(公告)日：2019-07-11

    申请号：US16299544

    申请日：2019-03-12

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Chunhua Hu ,  Venkateswar Reddy Kowkutla ,  Charles Fuoco

    IPC: G06F1/24 ,  G06F1/28 ,  G06F11/22

    CPC classification number: G06F1/24 ,  G06F1/28 ,  G06F11/22

    Abstract: Disclosed embodiments include an electronic system with a power on reset (POR) circuit. The POR circuit includes first voltage detection circuitry to perform a first detection on a supply voltage and to output a first control signal in response to the first detection, second voltage detection circuitry to perform a second detection on the supply voltage and to output a second control signal in response to the second detection, and third voltage detection circuitry to perform a third detection on the supply voltage and to output at least one third control signal in response to the third detection. The POR circuit further has sequencing circuitry with a first input to receive the at least one third control signal and to output a reset signal in response to the at least one third control signal.

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