A multimode i/o signaling circuit

Details A multimode i/o signaling circuit A multimode i/o signaling circuit

G - Physics

08

C

G08C 19/02 (2006.01)

Patent

CA 2344936

An I/O signaling circuit (250) having a single path through the circuit (250) which can be configured to operate in one of a plurality of modes. A first circuit (251) in the I/O signaling circuit adjusts the current flowing from a power supply to ground. A second circuit (252) adjusts the voltage between a positive potential terminal and negative potential terminal through a secondary processing device. A processor determines the proper mode in which the circuit is to operate and then generates signals to adjust the first and second circuits to configure the circuit.

L'invention concerne un circuit (250) de signalisation d'E/S ne constituant qu'un seul parcours à travers le circuit (250), lequel peut être configuré pour fonctionner selon une pluralité de modes. Un premier circuit (251) dans le circuit de signalisation d'E/S permet de régler le courant passant d'une source d'énergie à la terre. Un second circuit (252) permet de régler la tension entre une borne positive et une borne négative au moyen d'un dispositif de traitement secondaire. Un processeur détermine le mode de fonctionnement adéquat du circuit, puis génère des signaux de servant à régler le premier et le second circuits pour configurer le circuit.

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