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	`X"` `<series of digits` `0` `to` `9` `,` `A` `to` `F` `>` `"` `or` `H"` `<series of digits` `0` `to` `9` `,` `A` `to` `F` `>` `"`
VHDL	`16#` `<series of digits` `0` `to` `9` `,` `A` `to` `F` `>` `#`
Verilog HDL	`'h` `<series of digits` `0` `to` `9` `,` `A` `to` `F` `>`

Language

Notation

AHDL

X" <series of digits 0 to 9 , A to F > "

or

H" <series of digits 0 to 9 , A to F > "

VHDL

16# <series of digits 0 to 9 , A to F > #

Verilog HDL

'h <series of digits 0 to 9 , A to F >

Examples:

H"123AECF" (AHDL)16#FF#(VHDL)'h837FF(Verilog HDL)