Working now in the USB section of my design. I planning to use the USB as dual role host & device port. The behaviour will be determined if a USB OTG adapter (like the ones included with some cell phones) is plugged (act as host) or not (act as device).
I am using a micro USB connector (5 Pin) that includes the OTG_ID.
I have wired the OTG_ID directly to pin 168 in SODIMM connector. I did not placed the R12 indicated in the CMIO board just wired the pin directly.
Am I missing something or that would be all?
By the way how does CMIO switch the USB behaviour?. From the schematic I understand the switch logic when VBUS is present or not but I don´t see anything driving the OTG_ID pin of the CM3.
Thanks for your comments!