dataout_l  : out std_logic_vector(width-1 downto 0);
    combout    : out std_logic_vector(width-1 downto 0);
    dqsundelayedout : out std_logic_vector(width-1 downto 0);
    padio      : inout std_logic_vector(width-1 downto 0)
);
end component;

component altcdr_rx
generic (
        number_of_channels     : positive := 1;
        deserialization_factor : positive := 1;
        inclock_period         : positive;
        inclock_boost          : positive := 1;
        run_length             : integer := 62;
        bypass_fifo            : string := "OFF";
        intended_device_family : string := "MERCURY";
        lpm_type               : string := "altcdr_rx"
        );
port (
        rx_in        : in std_logic_vector(number_of_channels-1 downto 0);
        rx_inclock   : in std_logic;
        rx_coreclock : in std_logic;
        rx_aclr      : in std_logic := '0';
        rx_pll_aclr  : in std_logic := '0';
        rx_fifo_rden : in std_logic_vector(number_of_channels-1 downto 0) := (others => '1');
        rx_out       : out std_logic_vector(deserialization_factor*number_of_channels-1 downto 0);
        rx_outclock  : out std_logic;
        rx_pll_locked: out std_logic;
        rx_locklost  : out std_logic_vector(number_of_channels-1 downto 0);
        rx_rlv       : out std_logic_vector(number_of_channels-1 downto 0);
        rx_full      : out std_logic_vector(number_of_channels-1 downto 0);
        rx_empty     : out std_logic_vector(number_of_channels-1 downto 0);
        rx_rec_clk   : out std_logic_vector(number_of_channels-1 downto 0)
      );
end component;

component altcdr_tx
generic (
    number_of_channels     : positive := 1;
    deserialization_factor : positive := 1;
    inclock_period         : positive;  -- required parameter
    inclock_boost          : positive := 1;
    bypass_fifo            : string := "OFF";
    intended_device_family : string := "MERCURY";
    lpm_type               : string := "altcdr_tx"
);
port (
    tx_in        : in std_logic_vector(deserialization_factor*number_of_channels-1 downto 0);
    tx_inclock   : in std_logic;
    tx_coreclock : in std_logic;
    tx_aclr      : in std_logic := '0';
    tx_pll_aclr  : in std_logic := '0';
    tx_fifo_wren : in std_logic_vector(number_of_channels-1 downto 0) := (others => '1');

    tx_out       : out std_logic_vector(number_of_channels-1 downto 0);
    tx_outclock  : out std_logic;
    tx_pll_locked: out std_logic;
    tx_empty     : out std_logic_vector(number_of_channels-1 downto 0);
    tx_full      : out std_logic_vector(number_of_channels-1 downto 0)
);
end component;

component CARRY
        port ( a_in : in STD_LOGIC;
               a_out : out STD_LOGIC);
end component;

component CASCADE
        port ( a_in : in STD_LOGIC;
               a_out : out STD_LOGIC);
end component;

component LCELL
        port ( a_in : in STD_LOGIC;
               a_out : out STD_LOGIC);
end component;

component GLOBAL
        port ( a_in : in STD_LOGIC;
               a_out : out STD_LOGIC);
end component;

component CARRY_SUM
        port ( sin : in STD_LOGIC;
               cin : in STD_LOGIC;
               sout : out STD_LOGIC;
               cout : out STD_LOGIC);
end component;

component EXP
        port ( a_in : in STD_LOGIC;
               a_out : out STD_LOGIC);
end component;

component altshift_taps
generic (
         number_of_taps    : integer := 4;
         tap_distance      : integer := 3;
         width             : integer := 8;
         power_up_state : string := "CLEARED";
         lpm_hint          : string := "UNUSED";
         lpm_type          : string := "altshift_taps" );

port   (
        shiftin  : in std_logic_vector (width-1 downto 0);
        clock    : in std_logic;
        clken    : in std_logic := '1';
        shiftout : out std_logic_vector (width-1 downto 0);
        taps     : out std_logic_vector ((width*number_of_taps)-1 downto 0));

end component;



component altmult_add 
    generic (
        WIDTH_A                      : integer := 1;
        WIDTH_B                      : integer := 1;
        WIDTH_RESULT                 : integer := 1;
        NUMBER_OF_MULTIPLIERS        : integer := 1;

    -- A inputs
        INPUT_REGISTER_A0            : string := "CLOCK0";
        INPUT_ACLR_A0                : string := "ACLR3";
        INPUT_SOURCE_A0              : string := "DATAA";

        INPUT_REGISTER_A1            : string := "CLOCK0";
        INPUT_ACLR_A1                : string := "ACLR3";
        INPUT_SOURCE_A1              : string := "DATAA";

        INPUT_REGISTER_A2            : string := "CLOCK0";
        INPUT_ACLR_A2                : string := "ACLR3";
        INPUT_SOURCE_A2              : string := "DATAA";

        INPUT_REGISTER_A3            : string := "CLOCK0";
        INPUT_ACLR_A3                : string := "ACLR3";
        INPUT_SOURCE_A3              : string := "DATAA";

        REPRESENTATION_A             : string := "UNSIGNED";
        SIGNED_REGISTER_A            : string := "CLOCK0";
        SIGNED_ACLR_A                : string := "ACLR3";
        SIGNED_PIPELINE_REGISTER_A   : string := "CLOCK0";
        SIGNED_PIPELINE_ACLR_A       : string := "ACLR3";

    -- B inputs
        INPUT_REGISTER_B0            : string := "CLOCK0";
        INPUT_ACLR_B0                : string := "ACLR3";
        INPUT_SOURCE_B0              : string := "DATAB";

        INPUT_REGISTER_B1            : string := "CLOCK0";
        INPUT_ACLR_B1                : string := "ACLR3";
        INPUT_SOURCE_B1              : string := "DATAB";

        INPUT_REGISTER_B2            : string := "CLOCK0";
        INPUT_ACLR_B2                : string := "ACLR3";
        INPUT_SOURCE_B2              : string := "DATAB";

        INPUT_REGISTER_B3            : string := "CLOCK0";
        INPUT_ACLR_B3                : string := "ACLR3";
        INPUT_SOURCE_B3              : string := "DATAB";

        REPRESENTATION_B             : string := "UNSIGNED";
        SIGNED_REGISTER_B            : string := "CLOCK0";
        SIGNED_ACLR_B                : string := "ACLR3";
        SIGNED_PIPELINE_REGISTER_B   : string := "CLOCK0";
        SIGNED_PIPELINE_ACLR_B       : string := "ACLR3";

        MULTIPLIER_REGISTER0         : string := "CLOCK0";
        MULTIPLIER_ACLR0             : string := "ACLR3";
        MULTIPLIER_REGISTER1         : string := "CLOCK0";
        MULTIPLIER_ACLR1             : string := "ACLR3";
        MULTIPLIER_REGISTER2         : string := "CLOCK0";
        MULTIPLIER_ACLR2             : string := "ACLR3";
        MULTIPLIER_REGISTER3         : string := "CLOCK0";
        MULTIPLIER_ACLR3             : string := "ACLR3";

        ADDNSUB_MULTIPLIER_REGISTER1 : string := "CLOCK0";
        ADDNSUB_MULTIPLIER_ACLR1     : string := "ACLR3";
        ADDNSUB_MULTIPLIER_PIPELINE_REGISTER1 : string := "CLOCK0";
        ADDNSUB_MULTIPLIER_PIPELINE_ACLR1 : string := "ACLR3";
                
        ADDNSUB_MULTIPLIER_REGISTER3 : string := "CLOCK0";
        ADDNSUB_MULTIPLIER_ACLR3     : string := "ACLR3";
        ADDNSUB_MULTIPLIER_PIPELINE_REGISTER3: string := "CLOCK0";
        ADDNSUB_MULTIPLIER_PIPELINE_ACLR3 : string := "ACLR3";

        ADDNSUB1_ROUND_ACLR                   : string := "ACLR3";
        ADDNSUB1_ROUND_PIPELINE_ACLR          : string := "ACLR3";
        ADDNSUB1_ROUND_REGISTER               : string := "CLOCK0";
        ADDNSUB1_ROUND_PIPELINE_REGISTER      : string := "CLOCK0";
        ADDNSUB3_ROUND_ACLR                   : string := "ACLR3";
        ADDNSUB3_ROUND_PIPELINE_ACLR          : string := "ACLR3";
        ADDNSUB3_ROUND_REGISTER               : string := "CLOCK0";
        ADDNSUB3_ROUND_PIPELINE_REGISTER      : string := "CLOCK0";

        MULT01_ROUND_ACLR                     : string := "ACLR3";
        MULT01_ROUND_REGISTER                 : string := "CLOCK0";
        MULT01_SATURATION_REGISTER            : string := "CLOCK0";
	MULT01_SATURATION_ACLR                : string := "ACLR3";
        MULT23_ROUND_REGISTER                 : string := "CLOCK0";
        MULT23_ROUND_ACLR                     : string := "ACLR3";
        MULT23_SATURATION_REGISTER            : string := "CLOCK0";
        MULT23_SATURATION_ACLR                : string := "ACLR3";

        multiplier1_direction        : string := "ADD";
        multiplier3_direction        : string := "ADD";

        OUTPUT_REGISTER              : string := "CLOCK0";
        OUTPUT_ACLR                  : string := "ACLR0";

        -- StratixII parameters
        multiplier01_rounding    : string := "NO";
        multiplier01_saturation : string := "NO";
        multiplier23_rounding    : string := "NO";
        multiplier23_saturation : string := "NO";
        adder1_rounding         : string := "NO";
        adder3_rounding         : string := "NO";
        port_mult0_is_saturated : string := "UNUSED";
        port_mult1_is_saturated : string := "UNUSED";
        port_mult2_is_saturated : string := "UNUSED";
        port_mult3_is_saturated : string := "UNUSED";

        EXTRA_LATENCY                : integer :=0;
        DEDICATED_MULTIPLIER_CIRCUITRY:string  := "AUTO";
        DSP_BLOCK_BALANCING          : string := "AUTO";
        lpm_hint                     : string := "UNUSED";
        lpm_type                     : string := "altmult_add";
        intended_device_family       : string := "Stratix"
        );
                        
    port (
           dataa : in std_logic_vector(NUMBER_OF_MULTIPLIERS * WIDTH_A -1 downto 0);
           datab : in std_logic_vector(NUMBER_OF_MULTIPLIERS * WIDTH_B -1 downto 0);

           scanina : in std_logic_vector(width_a -1 downto 0) := (others => '0');
           scaninb : in std_logic_vector(width_b -1 downto 0) := (others => '0');

           sourcea : in std_logic_vector((number_of_multipliers -1) downto 0) := (others => '0');
           sourceb : in std_logic_vector((number_of_multipliers -1) downto 0) := (others => '0');
                
           -- clock ports
           clock3     : in std_logic := '1';
           clock2     : in std_logic := '1';
           clock1     : in std_logic := '1';
           clock0     : in std_logic := '1';
           aclr3      : in std_logic := '0';
           aclr2      : in std_logic := '0';
           aclr1      : in std_logic := '0';
           aclr0      : in std_logic := '0';
           ena3       : in std_logic := '1';
           ena2       : in std_logic := '1';
           ena1       : in std_logic := '1';
           ena0       : in std_logic := '1';

           -- control signals
           signa      : in std_logic := 'Z';
           signb      : in std_logic := 'Z';
           addnsub1   : in std_logic := 'Z';
           addnsub3   : in std_logic := 'Z';

           -- StratixII only input ports
           mult01_round        : in std_logic := '0';
           mult23_round        : in std_logic := '0';
           mult01_saturation   : in std_logic := '0';
           mult23_saturation   : in std_logic := '0';
           addnsub1_round      : in std_logic := '0';
           addnsub3_round      : in std_logic := '0';