+= read registers from userland

[raggedstone] / dhwk / source / pci / config_mux_0.vhd

-- J.STELZNER
-- INFORMATIK-3 LABOR
-- 23.08.2006
-- File: CONFIG_MUX_0.VHD

library IEEE;
use IEEE.std_logic_1164.all;

entity CONFIG_MUX_0 is
        port
        (
                READ_SEL :in std_logic_vector( 2 downto 0);
                CONF_DATA_00H :in std_logic_vector(31 downto 0);
                CONF_DATA_04H :in std_logic_vector(31 downto 0);
                CONF_DATA_08H :in std_logic_vector(31 downto 0);
                CONF_DATA_10H :in std_logic_vector(31 downto 0);
                CONF_DATA_3CH :in std_logic_vector(31 downto 0);
                --CONF_DATA_40H :in std_logic_vector(31 downto 0);
                CONF_DATA :out std_logic_vector(31 downto 0)
        );
end entity CONFIG_MUX_0;

architecture CONFIG_MUX_0_DESIGN of CONFIG_MUX_0 is

        signal MUX :std_logic_vector (31 downto 0);

begin

 --*******************************************************************
 --******************* PCI Read Config-MUX **************************
 --*******************************************************************

        MUX <= CONF_DATA_00H when READ_SEL <= "000" else
               CONF_DATA_04H when READ_SEL <= "001" else
               CONF_DATA_08H when READ_SEL <= "010" else
               CONF_DATA_10H when READ_SEL <= "011" else
               CONF_DATA_3CH when READ_SEL <= "100" else
               -- CONF_DATA_40H when READ_SEL <= "101" else
               X"00000000";

        CONF_DATA <= MUX;

end architecture CONFIG_MUX_0_DESIGN;