I am trying to use the analog comparator of a micro.
The Atmel docs from the micro page: http://www.atmel.com/Images/Atmel-7766-8-bit-AVR-ATmega16U4-32U4_Datasheet.pdf show AIN0 on pin PE6
The schematic for the micro: https://www.arduino.cc/en/uploads/Main/arduino-micro-schematic.pdf show AIN0 on also on PE6 connected to D7. However, it also shows AIN1 on PD2 connected to D0. AIN1 is not supposed to exist on this chip.
The green box labeled "Pin Mapping ATmega 32U4" on the micro page links to: https://www.arduino.cc/en/Hacking/PinMapping32u4 ....for the Arduino Leonardo
a tad confusing!