A 720Mbps fast auxiliary channel design for DisplayPort 1.2

This paper presents the design of a fast auxiliary channel bus for DisplayPort 1.2 interface. The fast auxiliary channel supports Manchester transactions at 1 Mbps and fast auxiliary transactions at 780 Mbps. The Manchester transaction is used for managing the main link and auxiliary channel and the fast auxiliary transaction is for data transfer via the auxiliary channel. Simplified serial bus architecture is proposed to be implemented in fast auxiliary channel. The fast auxiliary channel is synthesized using a FPGA board and it operates at 72 MHz to support 720 Mbps.