Patent ID: 7839860

Claim:
A system on a chip, comprising: an interface that communicates with at least one bi-directional auxiliary channel and at least one uni-directional main link, the interface arranged to provide a communication channel between a first device and a second device, the first device having a first device transmitter unit, the second device connected by way of the interface to the first device, wherein the second device includes at least a second device input transceiver unit arranged to receive data from the first device transmitter unit by way of the at least one bi-directional auxiliary channel and the at least one uni-directional main link of the interface and a second device output transceiver unit arranged to receive data from the second device input transceiver unit by way of a second device linking unit that includes at least a second device main channel and at least a second device auxiliary channel, wherein the second device output transceiver unit includes a number of transmitter units connected to a system interface that includes at least a system main link and a system auxiliary channel, wherein a selected transmitter unit sends data over the system interface to a receiving circuit.