?lvaro Lopes wrote: > I've some doubts about pullups/pulldowns: > > ECN0004: EXTONx pins have a -1/+2 uA current leakage limit. > Can't we just tie them to VB_SYS (like we do in ECN0003 for > SHUTDOWN<->GND) ? Yes, we could. I kept the pull-up so that the signal can be forced if necessary (e.g., for some embedded application). - Werner