Hi Heiko, Unfortunately, after the discussion with IC, we feel that we can not make hardware automatic switch; The reason for this is that if you accidentally configure all of these configurations, the hardware doesn't know which one to choose, and then it's not good for our debug, because I don't know which option the current hardware is switching to. So we still maintain the current way, but ask them to write more clearly and easily in the TRM file. ? 2017/5/23 0:29, Heiko Stuebner ??: > I was talking with David Wu about that a short while ago as well:-) . > > From what I've heared, in the future socs may be able to select that > routing themselfs based on the iomux and having had time to ponder > the whole issue for some time now, I do guess some sort of list would be > the least intrusive solution.