----  Copyright (c) 2003 Launchbird Design Systems, Inc.--  All rights reserved.--  --  Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:--    Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.--    Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.--  --  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,--  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.--  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,--  OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;--  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT--  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.--  --  --  Overview:--  --    Memory interleavers are often used in DSP for reordering continuous streaming data.--    The interleaver is comprised of two interleaving memories.  One memory loads and--    reorders data, while the other memory dumps the data to the output.--    Once loading and dumping of data are complete, the memories reverse roles.--    The dumping memory continuously cycles though the entire memory starting at address 0.--  --  Interface:--  --    Synchronization:--      clock_c  : Clock input.--  --    Inputs:--      swap_i   : Swap signal to interleave memories.  Pulse occurs one frame before the switch--                 and may coincide with the last input data.--      write_i  : Write enable for input data.--      addr_i   : Address for input data.--      data_i   : Input data.--  --    Outputs:--      sync_primary_o    : Output sync plus occurs one frame before data new dump.--      sync_secondary_o  : Secondary sync plus occurs one frame before data at address 0 is dumped.--      data_o            : Output data.--  --  Built In Parameters:--  --    Address Width  = 12--    Data Width     = 16--  --  --  --  --  Generated by Confluence 0.6.3  --  Launchbird Design Systems, Inc.  --  www.launchbird.com--  --  Build Date : Fri Aug 22 09:33:11 CDT 2003--  --  Interface--  --    Build Name    : cf_interleaver_12_16--    Clock Domains : clock_c  --    Vector Input  : swap_i(1)--    Vector Input  : write_i(1)--    Vector Input  : addr_i(12)--    Vector Input  : data_i(16)--    Vector Output : sync_primary_o(1)--    Vector Output : sync_secondary_o(1)--    Vector Output : data_o(16)--  --  --  library ieee;use ieee.std_logic_1164.all;use ieee.numeric_std.all;entity cf_interleaver_12_16_5 isport (i1 : in  unsigned(0 downto 0);i2 : in  unsigned(0 downto 0);i3 : in  unsigned(0 downto 0);i4 : in  unsigned(0 downto 0);i5 : in  unsigned(1 downto 0);o1 : out unsigned(0 downto 0));end entity cf_interleaver_12_16_5;architecture rtl of cf_interleaver_12_16_5 issignal n1 : unsigned(1 downto 0);signal n2 : unsigned(1 downto 0);signal n3 : unsigned(1 downto 0);signal n4 : unsigned(0 downto 0);signal n5 : unsigned(0 downto 0);signal n6 : unsigned(0 downto 0);signal n7 : unsigned(0 downto 0);signal n8 : unsigned(0 downto 0);signal n9 : unsigned(0 downto 0);beginn1 <= "00";n2 <= "10";n3 <= "01";n4 <= "1" when i5 = n1 else "0";n5 <= "1" when i5 = n2 else "0";n6 <= "1" when i5 = n3 else "0";n7 <= i2 when n6 = "1" else i1;n8 <= i3 when n5 = "1" else n7;n9 <= i4 when n4 = "1" else n8;o1 <= n9;end architecture rtl;library ieee;use ieee.std_logic_1164.all;use ieee.numeric_std.all;entity cf_interleaver_12_16_4 isport (i1 : in  unsigned(1 downto 0);o1 : out unsigned(0 downto 0));end entity cf_interleaver_12_16_4;architecture rtl of cf_interleaver_12_16_4 issignal n1 : unsigned(0 downto 0);signal n2 : unsigned(0 downto 0);signal n3 : unsigned(1 downto 0);signal n4 : unsigned(1 downto 0);signal n5 : unsigned(0 downto 0);signal n6 : unsigned(0 downto 0);signal n7 : unsigned(0 downto 0);signal n8 : unsigned(0 downto 0);signal n9 : unsigned(0 downto 0);beginn1 <= "0";n2 <= "0";n3 <= "00";n4 <= "10";n5 <= "1" when i1 = n3 else "0";n6 <= "1" when i1 = n4 else "0";n7 <= n1 when n6 = "1" else n9;n8 <= n2 when n5 = "1" else n7;n9 <= "1";o1 <= n8;end architecture rtl;library ieee;use ieee.std_logic_1164.all;use ieee.numeric_std.all;entity cf_interleaver_12_16_3 isport (clock_c : in std_logic;i1 : in  unsigned(0 downto 0);i2 : in  unsigned(0 downto 0);i3 : in  unsigned(0 downto 0);o1 : out unsigned(0 downto 0));end entity cf_interleaver_12_16_3;architecture rtl of cf_interleaver_12_16_3 issignal n1 : unsigned(0 downto 0);signal n2 : unsigned(0 downto 0);signal n3 : unsigned(0 downto 0);signal n4 : unsigned(0 downto 0);signal n5 : unsigned(1 downto 0);signal n6 : unsigned(0 downto 0) := "0";signal s7_1 : unsigned(0 downto 0);signal s8_1 : unsigned(0 downto 0);component cf_interleaver_12_16_5 isport (i1 : in  unsigned(0 downto 0);i2 : in  unsigned(0 downto 0);i3 : in  unsigned(0 downto 0);i4 : in  unsigned(0 downto 0);i5 : in  unsigned(1 downto 0);o1 : out unsigned(0 downto 0));end component cf_interleaver_12_16_5;component cf_interleaver_12_16_4 isport (i1 : in  unsigned(1 downto 0);o1 : out unsigned(0 downto 0));end component cf_interleaver_12_16_4;beginn1 <= "0";n2 <= "1";n3 <= "1";n4 <= "0";n5 <= i3 & n6;process (clock_c) begin  if rising_edge(clock_c) then    if i2 = "1" then      n6 <= "0";    elsif i1 = "1" then      n6 <= s7_1;    end if;  end if;end process;s7 : cf_interleaver_12_16_5 port map (n1, n2, n3, n4, n5, s7_1);s8 : cf_interleaver_12_16_4 port map (n5, s8_1);o1 <= s8_1;end architecture rtl;library ieee;use ieee.std_logic_1164.all;use ieee.numeric_std.all;entity cf_interleaver_12_16_2 isport (clock_c : in std_logic;i1 : in  unsigned(0 downto 0);i2 : in  unsigned(0 downto 0);i3 : in  unsigned(0 downto 0);i4 : in  unsigned(0 downto 0);i5 : in  unsigned(11 downto 0);i6 : in  unsigned(15 downto 0);o1 : out unsigned(0 downto 0);o2 : out unsigned(0 downto 0);o3 : out unsigned(15 downto 0));end entity cf_interleaver_12_16_2;architecture rtl of cf_interleaver_12_16_2 issignal n1 : unsigned(11 downto 0);signal n2 : unsigned(11 downto 0);signal n3 : unsigned(11 downto 0) := "000000000000";signal n4 : unsigned(0 downto 0);signal n5 : unsigned(0 downto 0) := "0";signal n6 : unsigned(11 downto 0);signal n7 : unsigned(0 downto 0);signal n8 : unsigned(0 downto 0);signal n9 : unsigned(15 downto 0);signal n9a : unsigned(11 downto 0) := "000000000000";type   n9mt is array (4095 downto 0) of unsigned(15 downto 0);signal n9m : n9mt;signal n10 : unsigned(0 downto 0);signal n11 : unsigned(15 downto 0);signal n11a : unsigned(11 downto 0) := "000000000000";type   n11mt is array (4095 downto 0) of unsigned(15 downto 0);signal n11m : n11mt;signal n12 : unsigned(0 downto 0) := "0";signal n13 : unsigned(15 downto 0);signal s14_1 : unsigned(0 downto 0);component cf_interleaver_12_16_3 isport (clock_c : in std_logic;i1 : in  unsigned(0 downto 0);i2 : in  unsigned(0 downto 0);i3 : in  unsigned(0 downto 0);o1 : out unsigned(0 downto 0));end component cf_interleaver_12_16_3;beginn1 <= "000000000001";n2 <= n3 + n1;process (clock_c) begin  if rising_edge(clock_c) then    if i3 = "1" then      n3 <= "000000000000";    elsif i1 = "1" then      n3 <= n2;    end if;  end if;end process;n4 <= not s14_1;process (clock_c) begin  if rising_edge(clock_c) then    if i2 = "1" then      n5 <= "0";    elsif i1 = "1" then      n5 <= i3;    end if;  end if;end process;n6 <= "000000000000";n7 <= "1" when n3 = n6 else "0";n8 <= i4 and n4;process (clock_c) begin  if rising_edge(clock_c) then    if i1 = "1" then      if n8 = "1" then        n9m(to_integer(i5)) <= i6;      end if;      n9a <= n3;    end if;  end if;end process;n9 <= n9m(to_integer(n9a));n10 <= i4 and s14_1;process (clock_c) begin  if rising_edge(clock_c) then    if i1 = "1" then      if n10 = "1" then        n11m(to_integer(i5)) <= i6;      end if;      n11a <= n3;    end if;  end if;end process;n11 <= n11m(to_integer(n11a));process (clock_c) begin  if rising_edge(clock_c) then    if i2 = "1" then      n12 <= "0";    elsif i1 = "1" then      n12 <= n4;    end if;  end if;end process;n13 <= n11 when n12 = "1" else n9;s14 : cf_interleaver_12_16_3 port map (clock_c, i1, i2, i3, s14_1);o3 <= n13;o2 <= n7;o1 <= n5;end architecture rtl;library ieee;use ieee.std_logic_1164.all;use ieee.numeric_std.all;entity cf_interleaver_12_16_1 isport (clock_c : in std_logic;i1 : in  unsigned(0 downto 0);i2 : in  unsigned(0 downto 0);i3 : in  unsigned(11 downto 0);i4 : in  unsigned(15 downto 0);o1 : out unsigned(0 downto 0);o2 : out unsigned(0 downto 0);o3 : out unsigned(15 downto 0));end entity cf_interleaver_12_16_1;architecture rtl of cf_interleaver_12_16_1 issignal n1 : unsigned(0 downto 0);signal n2 : unsigned(0 downto 0);signal s3_1 : unsigned(0 downto 0);signal s3_2 : unsigned(0 downto 0);signal s3_3 : unsigned(15 downto 0);component cf_interleaver_12_16_2 isport (clock_c : in std_logic;i1 : in  unsigned(0 downto 0);i2 : in  unsigned(0 downto 0);i3 : in  unsigned(0 downto 0);i4 : in  unsigned(0 downto 0);i5 : in  unsigned(11 downto 0);i6 : in  unsigned(15 downto 0);o1 : out unsigned(0 downto 0);o2 : out unsigned(0 downto 0);o3 : out unsigned(15 downto 0));end component cf_interleaver_12_16_2;beginn1 <= "1";n2 <= "0";s3 : cf_interleaver_12_16_2 port map (clock_c, n1, n2, i1, i2, i3, i4, s3_1, s3_2, s3_3);o3 <= s3_3;o2 <= s3_2;o1 <= s3_1;end architecture rtl;library ieee;use ieee.std_logic_1164.all;use ieee.numeric_std.all;entity cf_interleaver_12_16 isport(signal clock_c : in std_logic;signal swap_i : in unsigned(0 downto 0);signal write_i : in unsigned(0 downto 0);signal addr_i : in unsigned(11 downto 0);signal data_i : in unsigned(15 downto 0);signal sync_primary_o : out unsigned(0 downto 0);signal sync_secondary_o : out unsigned(0 downto 0);signal data_o : out unsigned(15 downto 0));end entity cf_interleaver_12_16;architecture rtl of cf_interleaver_12_16 iscomponent cf_interleaver_12_16_1 isport (clock_c : in std_logic;i1 : in  unsigned(0 downto 0);i2 : in  unsigned(0 downto 0);i3 : in  unsigned(11 downto 0);i4 : in  unsigned(15 downto 0);o1 : out unsigned(0 downto 0);o2 : out unsigned(0 downto 0);o3 : out unsigned(15 downto 0));end component cf_interleaver_12_16_1;signal n1 : unsigned(0 downto 0);signal n2 : unsigned(0 downto 0);signal n3 : unsigned(15 downto 0);begins1 : cf_interleaver_12_16_1 port map (clock_c, swap_i, write_i, addr_i, data_i, n1, n2, n3);sync_primary_o <= n1;sync_secondary_o <= n2;data_o <= n3;end architecture rtl;