Integrated circuit and method for diagnosing an integrated circuit

A method for performing diagnostics on an integrated circuit comprising an electronic module configured to generate a signal at an output, and an electronic control circuit coupled to the output of the electronic module, wherein the electronic control circuit comprises an emissive electronic component, the electronic control circuit is configured to cause the emissive electronic component to emit light radiation as a function of a value of the signal at the output of the electronic module relative to a value of an operating signal of the electronic module, the operating signal is specific thereto during normal operation of this electronic module, and the light radiation emitted by the emissive electronic component is configured to diffuse to an outer face of the integrated circuit, the method comprising:

• turning on the integrated circuit;
• monitoring the emissive electronic component for emitted light radiation;
• and
• determining whether the electronic module is faulty based on the monitoring.

A system comprising:

• a diagnostic device configured to be coupled to an integrated circuit comprising an electronic module configured to generate a signal at an output, and an electronic control circuit coupled to the output of the electronic module, wherein the electronic control circuit comprises an emissive electronic component, the electronic control circuit is configured to cause the emissive electronic component to emit light radiation as a function of a value of the signal at the output of the electronic module relative to a value of an operating signal of the electronic module, the operating signal is specific thereto during normal operation of this electronic module, and the light radiation emitted by the emissive electronic component is configured to diffuse to an outer face of the integrated circuit, wherein the diagnostic device is configured to:
• turn-on the integrated circuit;
• monitor the emissive electronic component for the emitted light radiation;
• and
• determine whether the electronic module is faulty based on the monitoring.