10.1.4.2 Adder/Subtractor I/O Description

The following table lists the I/O description of an Adder/Subtractor.

Table 10-15. I/O Description
Port Name	Size	Type	Required/Optional	Function
DataA	WIDTH	Input	Required	Input Data
DataB	WIDTH	Input	Required	Input Data
Cin	1	Input	Optional	Carry-in
Sum	WIDTH	Output	Required	Sum
Cout	1	Output	Optional	Carry-out
Addsub	1	Input	Required	Addition (AddSub=1) or subtraction (AddSub=0)