hard to say for sure, but U109 and U208 could be UART into those Cisco baseband or radio chips. one placement for the 2.4 GHz (G) and 5 GHz (A), respectively. would be interesting to probe around there and see if you get a serial interface to it… obviously for extra credit ;-)
TSMC
edit: downvote all you want, the fundamental circuit level design is not in question here… it’s how you make the damn thing and TSMC can do it better. intel talks a big game yet continues to fail on delivering any of it. i’ll believe half of what they say when i see it… and it helps that good ol’ uncle sam is helping them out, they’re gonna need it.