Signal jump detection circuit and method

The invention provides a signal jump detection circuit and method, which can be applied to the technical field of integrated circuit design and the technical field of digital chips. According to the circuit, the input end of a phase inverter is electrically connected with the output end of a circuit to be detected, and the phase inverter is used for outputting a signal opposite to an output signal of the circuit to be detected according to the output signal of the circuit to be detected; a second input end of the first control sub-circuit is electrically connected with a clock signal end, and the first control sub-circuit is used for outputting a first signal according to a clock signal output by the clock signal end and an input signal of the phase inverter; a second input end of the second control sub-circuit is electrically connected with a clock signal end, and the second control sub-circuit is used for outputting a second signal according to a clock signal output by the clock signal end and an output sig