Need some help in an area I'm struggling with.
I'm going to be using the atmega32u4 for my next project and I need to make sure I map out all the pins I will need and not use them for simultaneous operations.
SPI - locked to PORTB pins. 1,2,3
USART - I think D2 and D3
USB LUFA - has its own d- d+ pins on the chip.
twi - Unsure, can not tell if it's specific pins/ports or not?
That is what I know/don't know at the moment. Also c6, c7, those have any specific uses, or just general I/O. I see they are output for pulse width modulation but any pin can do that with in reason and is the input capture feature any better then using a normal interrupt IRQ?