A circuit arrangement for converting an alternating voltage into a rectified voltage comprises a first transistor whose first terminal is coupled to an input terminal of the circuit arrangement for feeding in the alternating voltage, and whose second connection is coupled to an output terminal of the circuit arrangement for delivery of the rectified voltage. This method comprises: 1) anticipating the need for the upstream bandwidth in advance of any specific request for said upstream bandwidth; and 2) scheduling the upstream bandwidth in accordance with such need. Each of the radiators independently operates according to an operating frequency band, to provide a multi-band characteristic. A special exception value is stored in the vector element in a vector register corresponding to the vector, indicative of the exception condition, without invoking an exception handler for the exception condition.