A design scheme for 12-channel bonding based on FPGA

This article first introduces the research background and working principle of the TX phase alignment function of the Virtex-7 series FPGA. Then, according to the application requirements of the PCIe protocol, a design scheme for 12-channel bonding based on the GTH IP core is proposed. This solution solves the traditional High-speed serial transceivers only support up to eight channel bonding problems. The simulation results and board-level verification results of the solution show that the solution can stably achieve 12-channel bonding, and at the same time, the link bandwidth can be expanded to 1.5 times.