The USB On-The-Go (OTG) Supplement addresses the need for mobile interconnectivity between portable devices when a PC is not available.
Many people think that they need OTG when they need both USB host and device functionality on the same device.
That is not correct.
OTG provides the capability to switch the roles of a USB controller between USB host and USB device ( aka “peripheral”). These two roles cannot work simultaneously.
If your...
preview:
http://www.smxrtos.com/articles/usb_art/whenotg.htm
1/8/2009
