Circuit architecture for expanded design for testability functionality

    公开(公告)号:US11263377B1

    公开(公告)日:2022-03-01

    申请号:US17219174

    申请日:2021-03-31

    申请人: Xilinx, Inc.

    摘要: A circuit architecture for expanded design for testability functionality is provided that includes an Intellectual Property (IP) core for use with a design for an integrated circuit (IC). The IP core provides an infrastructure harness circuit configured to control expanded design for testability functions available within the IC. An instance of the IP core can be included in a circuit block of the design for the IC. The infrastructure harness circuit can include an outward facing interface configured to connect to circuitry outside of the circuit block and an inward facing interface configured to connect to circuitry within the circuit block. The instance of the IP core can be parameterized to configure the infrastructure harness circuit to control a plurality of functions selected from the expanded design for testability functions based on a user parameterization of the instance of the IP core.

    Circuits for and methods of testing the operation of an input/output port
    3.
    发明授权
    Circuits for and methods of testing the operation of an input/output port 有权
    用于测试输入/输出端口操作的电路和方法

    公开(公告)号:US09500700B1

    公开(公告)日:2016-11-22

    申请号:US14081461

    申请日:2013-11-15

    申请人: Xilinx, Inc.

    IPC分类号: G01R31/02 G01R31/28

    摘要: An integrated circuit enabling the communication of data is described. The integrated circuit comprises an input/output port; a plurality of data converter circuits; and programmable interconnect circuits coupled between the input/output port and the plurality of data converter circuits, the programmable interconnect circuits enabling a connection of the plurality of data converter circuits to the input/output port of the integrated circuit. A method of enabling the communication of data in an integrated circuit is also described.

    摘要翻译: 描述了能够进行数据通信的集成电路。 集成电路包括输入/​​输出端口; 多个数据转换器电路; 以及耦合在所述输入/输出端口和所述多个数据转换器电路之间的可编程互连电路,所述可编程互连电路使得所述多个数据转换器电路能够连接到所述集成电路的输入/输出端口。 还描述了能够进行集成电路中的数据通信的方法。

    Breakpointing circuitry that evaluates breakpoint conditions while running clock to target circuit

    公开(公告)号:US10754759B1

    公开(公告)日:2020-08-25

    申请号:US15889001

    申请日:2018-02-05

    申请人: Xilinx, Inc.

    IPC分类号: G06F11/00 G06F11/36

    摘要: An execution circuit inputs a plurality of data units, performs unit operations on the data units, and registers results of the unit operations in response to oscillations of a clock signal. A control circuit controls activation of the unit operations, and outputs a start signal to the execution circuit to activate each unit operation and/or a completion signal to indicate completion of each unit operation. A debug circuit stores breakpoint flags associated with the unit operations. Each breakpoint flag has a state that specifies whether to stop oscillations of the clock signal. The debug circuit further receives the start and/or completion signal and evaluates, while the clock signal oscillates to the execution circuit, a state of the start and/or completion signal and a state of the breakpoint flag associated with the unit operation. Oscillations of the clock signal are stopped in response to the evaluation of the signals.

    Integrated circuit chip testing interface with reduced signal wires

    公开(公告)号:US11860228B2

    公开(公告)日:2024-01-02

    申请号:US17742363

    申请日:2022-05-11

    申请人: XILINX, INC.

    IPC分类号: G01R31/3185 G01R31/317

    摘要: An integrated circuit (IC) chip device includes testing interface circuity and testing circuitry to test the operation of the IC chips of the IC chip device. The IC chip device includes a first IC chip that comprises first testing circuitry. The first testing circuitry receives a mode select signal, a clock signal, and encoded signals, and comprises finite state machine (FSM) circuitry, decoder circuitry, and control circuitry. The FSM circuitry determines an instruction based on the mode select signal and the clock signal. The decoder circuitry decodes the encoded signals to generate a decoded signal. The control circuitry generates a control signal from the instruction and the decoded signal. The control signal indicates a test to be performed by the first testing circuitry.

    Programmable dynamic clock stretch for at-speed debugging of integrated circuits

    公开(公告)号:US11290095B1

    公开(公告)日:2022-03-29

    申请号:US17330042

    申请日:2021-05-25

    申请人: Xilinx, Inc.

    摘要: An integrated circuit can include one or more clock controllers. Each clock controller corresponds to a different clock signal of a set of one or more clock signals of the integrated circuit. Each clock controller is configured to implement a clock stretch mode that generates a modified clock signal having a frequency that is less than the clock signal. The integrated circuit can include a trigger circuit configured to enable selected ones of the one or more clock controllers to implement the clock stretch mode. The trigger circuit and the one or more clock controllers are hardwired and are programmable using control infrastructure circuitry of the integrated circuit.