Forming a logical microcontroller from at least two physical microcontrollers on a common semiconductor substrate

A system, comprising:

• at least two microcontrollers on a common semiconductor substrate, each of the at least two microcontrollers having respectively one hardware interface, and the at least two microcontrollers being coupled in data-transmitting fashion via the respective hardware interfaces by a coupling device.

A processing unit, comprising:

• a system including at least two microcontrollers on a common semiconductor substrate, each of the at least two microcontrollers having respectively one hardware interface, and the at least two microcontrollers being coupled in data-transmitting fashion via the respective hardware interfaces by a coupling device;
• wherein the processing unit being designed to control an internal combustion engine.

A method of producing a system, the method comprising:

• producing at least two microcontrollers on a common semiconductor substrate, each of the at least two microcontrollers having respectively one hardware interface, and the at least two microcontrollers being coupled in data-transmitting fashion via the respective hardware interfaces by a coupling device, the at least two microcontroller being produced like a single microcontroller.