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    • 4. 发明授权
    • Synchronous circuit, method of designing a synchronous circuit, and method of validating a synchronous circuit
    • 同步电路,同步电路的设计方法以及同步电路的验证方法
    • US09244123B1
    • 2016-01-26
    • US14552543
    • 2014-11-25
    • Thomas KochIlhan HatirnazMichael Rohleder
    • Thomas KochIlhan HatirnazMichael Rohleder
    • G06F17/50G01R31/317G01R31/3177
    • G01R31/31726G01R31/31727G01R31/3177G06F17/505
    • A synchronous circuit comprises a functional circuitry and one or more validation circuits for validating synchronization of the functional circuitry. The functional and the validation circuits are clocked by a clock source. Each validation circuit comprises a clock distribution network, a test signal generator, a capture cell, a test signal path from the test signal generator to the capture cell, and a verification unit. The clock distribution network applies a launch clock signal at the test signal generator and a capture clock signal at the capture cell. The test signal generator produces a bi-level test signal. The test signal path transmits the test signal to the capture cell, which generates a proof sequence by sampling the test signal. The verification unit determines whether the proof sequence is identical to the test sequence.A method of designing a synchronous circuit and method of validating a synchronous circuit are also described.
    • 同步电路包括功能电路和用于验证功能电路的同步的一个或多个确认电路。 功能和验证电路由时钟源提供时钟。 每个验证电路包括时钟分配网络,测试信号发生器,捕获单元,从测试信号发生器到捕获单元的测试信号路径,以及验证单元。 时钟分配网络在测试信号发生器处应用发射时钟信号,并在捕捉单元处施加捕获时钟信号。 测试信号发生器产生双电平测试信号。 测试信号路径将测试信号发送到捕获单元,其通过对测试信号进行采样来产生校验序列。 验证单元确定验证序列是否与测试序列相同。 还描述了设计同步电路的方法和验证同步电路的方法。