Abstract:
A processor is provided with a set of instructions formed, in general, of an operation section and an operand section. For at least one of the instructions, the operand section represents operation control signals of the processor. In this way, an extension of the set of instructions can be achieved for tailoring the set of instructions to the user's own requirements. Consequently, the processor control unit should be capable of coupling its outputs to its inputs upon receiving one such instruction, thereby to transfer such internal operation control signals without interpretation.
Abstract:
A digital interface for driving at least one complementary pair of first and second power elements connected in an inverter configuration between first and second voltage references is provided. The digital interface includes a first input terminal for receiving a PWM input signal, a first counter stage connected to the first input terminal, and a second counter stage connected to an output of the first counter stage. A toggle stage is connected to the first input terminal and to an output of the second counter stage. A first output terminal is connected to an output of the toggle stage, and is to be connected to a control terminal of the first power element. A second output terminal is connected to the output of the first counter stage for receiving a delayed PWM output signal therefrom, and is to be connected to a control terminal of the second power element. The toggle stage generates a second PWM output signal for the first output terminal. The second PWM output signal is kept at a desired low level in correspondence with switching of the PWM input signal having a lower duration than a predetermined duration.