Patent ID: 7046184

Claim:
An analog/digital converter comprising: an analog/digital converting unit configured to convert analog measurement into digital data including converted data bits; a converted data storing unit configured to store the data converted in the analog/digital converting unit; a reference value storing unit configured to store reference value data for a process of a CPU, the reference value data including reference data bits; a comparing data storing unit configured to store comparing data that indicates which of the converted data bits of the converted data stored in the converted data storing unit are to be compared with which of the reference data bits of the reference value stored in the reference value storing unit; a comparing unit configured to select comparison bits among the converted data bits and the reference data bits and to perform a comparison between the converted data and the reference value data; and an interrupt request signal generating unit configured to generate an interrupt request signal to the CPU when the comparing unit detects coincidence between the converted data bits and the reference data bits.