Systems and methods for biasing a bus

A method of biasing a bi-directional differential bus interface that includes a differential transmitter having a non-inverting terminal and an inverting terminal and a differential receiver having a non-inverting terminal and an inverting terminal, the method comprising acts of:

• receiving an instruction to bias the bi-directional bus interface to a determined state;
• asserting a control signal in response to receipt of the instruction;
• and
• generating, in a biasing circuit that is electrically coupled to the non-inverting terminal of the differential transmitter and the inverting terminal of the differential transmitter, a voltage that is at least approximately 200 mV between the non-inverting terminal of the differential transmitter and the inverting terminal of the differential transmitter in response to the assertion of the control signal.

A bi-directional differential bus interface comprising:

• a differential transmitter having a non-inverting terminal and an inverting terminal;
• a differential receiver having a non-inverting terminal and an inverting terminal;
• and
• means, electrically coupled to the non-inverting terminal of the differential transmitter and the inverting terminal of the differential transmitter, for generating a voltage between the non-inverting terminal of the differential transmitter and the inverting terminal of the differential transmitter that is at least approximately 200 m V in response to assertion of a control signal.