NETWORK COMMUNICATION CONTROL APPARATUS, SYSTEM AND METHOD

摘要

Aspects of the present disclosure are directed to single-wire bus communications. In accordance with one or more embodiments, a pull-up current is delimited when a single-wire bus circuit is operated at a dominant level during the transmission of data on the single-wire bus circuit. This approach can be implemented to facilitate power savings, such as in applications involving a master control circuit that transmits signals by driving the single-wire bus circuit between dominant and recessive levels.

主权项

1. An apparatus comprising:
a voltage source; a master control circuit configured and arranged to transmit signals by driving a single-wire bus circuit at a dominant level and at a recessive level; an impedance-bias circuit configured and arranged with the voltage source to pull up a voltage level on the bus circuit, using a pull-up current that passes through the impedance-bias circuit, while the master control circuit transmits the signals; and a current delimiter circuit connected between the voltage source and the impedance-bias circuit, the current delimiter circuit being configured and arranged to
delimit the pull-up current in response to a transition of the bus circuit from the recessive level to the dominant level, andcease delimiting of the pull-up current in response to a transition of the bus circuit from the dominant level to the recessive level.