Patent ID: 8405423

Claim:
A bus driver comprising: a ground terminal and a first and a second terminal for a first and a second bus wire, wherein in a first operation mode the bus driver provides at the first terminal a first output voltage comprising a first data signal according to a peripheral sensor interface (PSI) bus protocol and provides at the second terminal a second output voltage comprising a second data signal according to the PSI bus protocol, wherein the ground terminal is connected to a third bus wire during the first operation mode, wherein in a second operation mode the bus driver provides at the first terminal a third output voltage comprising a third data signal according to a digital serial interface (DSI) bus protocol and provides at the second terminal an inverted third output voltage to provide a differential transmission of the third data signal according to the DSI bus protocol, wherein each of the third output voltage and the inverted third output voltage is an electric potential difference in relation to a potential of the ground terminal, wherein the ground terminal is not connected to the third bus wire during the second operation mode.