what model of mcu can I use to mux/demux two data signals?

[rbhawcroft]

I need to either multiplex a 16 bit 13.5MHz video signal with a 2 bit 12MHz USB signal and then demultiplex them after optical transmission over a simplex connection, or alternatively drop them onto a 10 bit bus which would require a 8bit data bus, plus 8b/10b encoding in software, plus comma insertion and buffering in a cache at the receiver end so that a smooth video and USB stream could be reestablished, is this possible to do in software and what model of mcu could be used? It would require a 10bit output bus containing the video and USB signals embedded operating at something like 40MHz. Aso are there any other good mcu forums? Thanks for any help you can offer.