Abstract: A method for operating a microcontroller. The microcontroller includes a plurality of resources, a plurality of virtual machines being executed in the microcontroller, a coordination unit being superordinate to the plurality of virtual machines. Access information concerning accesses of the plurality of virtual machines to the plurality of resources is stored in the coordination unit. In the event that one of the virtual machines requests a reset of one of the resources, the coordination unit checks on the basis of the access information, which of the virtual machines are accessing this resource. The coordination unit determines on the basis of this check, whether the resource will be reset or whether a substitute measure will be taken.