电路在每个clk下降沿检查输入数据.输入数据为串行位流din.当输入数据流出现10110时,输出Asm输出一个clk宽的1,否则为0. -Clk falling edge of each circuit checks the input data. Input data for the serial bit stream din. Occurs when the input data stream 10110, the output Asm output of a clk-wide one,