I just bought a second (I'm a big spender) TRK-USB-MPC5643L, and when it arrived the bag was marked "REV B".
Comparing with my Rev A, the only obvious difference, besides the silkscreen, is the addition of J11, which (no surprise here) doesn't appear in my Rev A schematic.
Does anyone know what J11 does? It comes not-connected (no jumper installed, e.g.); should I just leave it that way?
More generally: Are the Rev B schematics available somewhere?