The XIO2213B datasheet (TI doc SCPS210F - May 2013) says to leave the CNA pin unconnected if not used and the XIO2213B EVM also leaves it unconnected.
But, the XIO2213B implementation guide (TI doc SCPA048 - Oct 2010) says "If the CNA terminal is not used, then it must be connected to GND through a 43-kΩ resistor".
Which is correct?
