i'm trying to port over some code from an Uno to the Due and I've nearly got everything covered except for the part that deals with serial communication. i've looked through the Atmel data sheet but i'm not quite sure about the equivalent data registry and controls.
the original code makes reference to the following:
UCSRA UDRE UDR
and from reading in the datasheet, the nearest equivalent i can find to them (respectively) are:
US_CR ENDRX US_RHR
could someone please confirm/correct this? thank you!