hexadecimal Definition
The base 16 number system (radix). Hexadecimal digits are 0 through 9 and A through F.
Hexadecimal numbers are indicated with the following notation:
| 
                               Language  | 
                           
                               Notation  | 
                        
|---|---|
| 
                               AHDL  | 
                           
                               
 or 
  | 
                        
| 
                               VHDL  | 
                           
                               
  | 
                        
| 
                               Verilog HDL  | 
                           
                               
  | 
                        
Examples:
H"123AECF"
                  (AHDL)
                     16#FF# (VHDL)
                     'h837FF (Verilog HDL)