Patent ID: 8060343

Claim:
A semiconductor device for measuring noise generated in the semiconductor device, comprising: an analysis object information extracting section specifying analysis object information used to analyze noise associated with a malfunction from observed noise information and extracting the specified analysis object information from the noise information; and a communication section outputting the extracted analysis object information to the outside of the semiconductor device, wherein the analysis object information extracting section includes a comparator, a counter and a recording section, an output of the comparator and an output of the counter coupled to the recording section separately, wherein the comparator compares a value of an inputted noise information with a predetermined threshold, and extracts as the analysis object information the noise information with a size below the threshold or above the threshold, wherein the counter outputs a generation timing of the extracted noise information by counting clock signal, and wherein the recording section records a count value indicating the generation timing of the extracted noise information and the extracted noise information.