demux_generic.arch

来自「6端口寄存器IP内核VHDL源代码」· ARCH 代码 · 共 29 行

-- +-----------------------------+
-- |    Library:  multiplexer    |
-- |    designer : Tim Pagden    |
-- |     opened:  7 Jul 1998     |
-- +-----------------------------+
 
-- Architectures:
--   07.07.98 behaviour
 
library ieee;
library vfp;

-- behaviour
architecture behaviour of demux_generic is
  use ieee.std_logic_1164.all;
  use vfp.integer_plus.to_integer;
  
begin

  demux_a_to_y: process (a, enable)
  begin
    y <= (others => '0');
    if enable = '1' then
      y(to_integer(a)) <= '1';
    end if;
  end process;

end behaviour;