Is there any way to have datatype more than integer range ?

Thank you reply FvM : ) ,

I have one more question suppose i have a signal assignment as

signal acc : unsigned ((DATA_WIDTH) downto 0 ) ;

I am aware that DATA_WIDTH can be declared as generic or a constant type and cannot be changed even if I try to modify the DATA_WIDTH value inside the process block. But I need a clarification regarding is there any other method through which I can change the DATA_WIDTH value ? basically i am looking at re usability of the signal by assigning the value for the DATA_WIDTH inside the process statement flexibly rahter than giving its value through generic or constant

Siva

Siva