TauConditionsBDT.vhd

library IEEE;
use IEEE.STD_LOGIC_1164.all;
use IEEE.NUMERIC_STD.all;
 
library work;
use work.DataTypes.all;
 
entity TauConditionsBDT is
  port (
    CLK                 : in  std_logic;
    IN_BDTScore         : in std_logic_vector(BDT_SCORE_WIDTH - 1 downto 0);
    IN_BDT_Thr          : in AlgoParameters(2 downto 0);
    IN_Max_BDT_E_threshold      : in  DataWord;
    IN_Min_BDT_E_threshold      : in  DataWord;
    IN_Total_Energy             : in  DataWord;
    IN_Total_Energy_of          : in  std_logic;
    OUT_BDTCondition        : out std_logic_vector (1 downto 0);
    OUT_BDTScore        : out std_logic_vector(BDT_SCORE_WIDTH - 1 downto 0)
    );
 
end TauConditionsBDT;
 
architecture Behavioral of TauConditionsBDT is
begin
  CONDITIONS : process (CLK)
  variable BDTScore_MSB: std_logic_vector(PAR_WIDTH-1 downto 0);
  begin
    if rising_edge(CLK) then
      BDTScore_MSB := IN_BDTScore(BDT_SCORE_WIDTH - 1 downto BDT_SCORE_WIDTH - PAR_WIDTH);
 
      if IN_Total_Energy_of = '0' and IN_Total_Energy < IN_Max_BDT_E_threshold then 
    if IN_Total_Energy < IN_Min_BDT_E_threshold then
          OUT_BDTCondition <= "11";
    else
          if (BDTScore_MSB < IN_BDT_Thr(0)) then
              OUT_BDTCondition <= "00";
          elsif (BDTScore_MSB < IN_BDT_Thr(1)) then
              OUT_BDTCondition <= "01";
          elsif (BDTScore_MSB < IN_BDT_Thr(2)) then
              OUT_BDTCondition <= "10";
          else
              OUT_BDTCondition <= "11";
          end if;
        end if;
      else
        OUT_BDTCondition <= "11";
      end if;
 
      OUT_BDTScore <= IN_BDTScore;
    end if;
  end process;
end Behavioral;