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--

-- BLK MEM GEN v6.2 Core - Top-level wrapper

--

--------------------------------------------------------------------------------

--

-- (c) Copyright 2006-2011 Xilinx, Inc. All rights reserved.

--

-- This file contains confidential and proprietary information

-- of Xilinx, Inc. and is protected under U.S. and

-- international copyright and other intellectual property

-- laws.

--

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-- otherwise provided in a valid license issued to you by

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--

--------------------------------------------------------------------------------

--

-- Filename: bmg_wrapper.vhd

--

-- Description:

--   This is the top-level BMG wrapper (over BMG core).

--

--------------------------------------------------------------------------------

-- Author: IP Solutions Division

--

-- History: August 31, 2005 - First Release

--------------------------------------------------------------------------------

--

-- Configured Core Parameter Values:

-- (Refer to the SIM Parameters table in the datasheet for more information on

-- the these parameters.)

--    C_FAMILY                    :  spartan6 

--    C_XDEVICEFAMILY             :  spartan6 

--    C_INTERFACE_TYPE            :  0 

--    C_AXI_TYPE                  :  1 

--    C_AXI_SLAVE_TYPE            :  0 

--    C_AXI_ID_WIDTH              :  4 

--    C_MEM_TYPE                  :  2 

--    C_BYTE_SIZE                 :  9 

--    C_ALGORITHM                 :  1 

--    C_PRIM_TYPE                 :  1 

--    C_LOAD_INIT_FILE            :  0 

--    C_INIT_FILE_NAME            :  no_coe_file_loaded 

--    C_USE_DEFAULT_DATA          :  0 

--    C_DEFAULT_DATA              :  0 

--    C_RST_TYPE                  :  SYNC 

--    C_HAS_RSTA                  :  0 

--    C_RST_PRIORITY_A            :  CE 

--    C_RSTRAM_A                  :  0 

--    C_INITA_VAL                 :  0 

--    C_HAS_ENA                   :  1 

--    C_HAS_REGCEA                :  0 

--    C_USE_BYTE_WEA              :  0 

--    C_WEA_WIDTH                 :  1 

--    C_WRITE_MODE_A              :  WRITE_FIRST 

--    C_WRITE_WIDTH_A             :  8 

--    C_READ_WIDTH_A              :  8 

--    C_WRITE_DEPTH_A             :  4096 

--    C_READ_DEPTH_A              :  4096 

--    C_ADDRA_WIDTH               :  12 

--    C_HAS_RSTB                  :  0 

--    C_RST_PRIORITY_B            :  CE 

--    C_RSTRAM_B                  :  0 

--    C_INITB_VAL                 :  0 

--    C_HAS_ENB                   :  1 

--    C_HAS_REGCEB                :  0 

--    C_USE_BYTE_WEB              :  0 

--    C_WEB_WIDTH                 :  1 

--    C_WRITE_MODE_B              :  WRITE_FIRST 

--    C_WRITE_WIDTH_B             :  32 

--    C_READ_WIDTH_B              :  32 

--    C_WRITE_DEPTH_B             :  1024 

--    C_READ_DEPTH_B              :  1024 

--    C_ADDRB_WIDTH               :  10 

--    C_HAS_MEM_OUTPUT_REGS_A     :  0 

--    C_HAS_MEM_OUTPUT_REGS_B     :  0 

--    C_HAS_MUX_OUTPUT_REGS_A     :  0 

--    C_HAS_MUX_OUTPUT_REGS_B     :  0 

--    C_HAS_SOFTECC_INPUT_REGS_A  :  0 

--    C_HAS_SOFTECC_OUTPUT_REGS_B :  0 

--    C_MUX_PIPELINE_STAGES       :  0 

--    C_USE_ECC                   :  0 

--    C_USE_SOFTECC               :  0 

--    C_HAS_INJECTERR             :  0 

--    C_SIM_COLLISION_CHECK       :  ALL 

--    C_COMMON_CLK                :  1 

--    C_DISABLE_WARN_BHV_COLL     :  0 

--    C_DISABLE_WARN_BHV_RANGE    :  0 

--------------------------------------------------------------------------------

-- Library Declarations

--------------------------------------------------------------------------------

LIBRARY IEEE;

USE IEEE.STD_LOGIC_1164.ALL;

USE IEEE.STD_LOGIC_ARITH.ALL;

USE IEEE.STD_LOGIC_UNSIGNED.ALL;

LIBRARY UNISIM;

USE UNISIM.VCOMPONENTS.ALL;

--------------------------------------------------------------------------------

-- Entity Declaration

--------------------------------------------------------------------------------

ENTITY bmg_wrapper IS

  PORT (

    --Port A

    CLKA       : IN STD_LOGIC;

    RSTA       : IN STD_LOGIC;  --opt port

    ENA        : IN STD_LOGIC;  --optional port

    REGCEA     : IN STD_LOGIC;  --optional port

    WEA        : IN STD_LOGIC_VECTOR(0 DOWNTO 0);

    ADDRA      : IN STD_LOGIC_VECTOR(11 DOWNTO 0);

    DINA       : IN STD_LOGIC_VECTOR(7 DOWNTO 0);

    DOUTA      : OUT STD_LOGIC_VECTOR(7 DOWNTO 0);

    --Port B

    CLKB       : IN STD_LOGIC;

    RSTB       : IN STD_LOGIC;  --opt port

    ENB        : IN STD_LOGIC;  --optional port

    REGCEB     : IN STD_LOGIC;  --optional port

    WEB        : IN STD_LOGIC_VECTOR(0 DOWNTO 0);

    ADDRB      : IN STD_LOGIC_VECTOR(9 DOWNTO 0);

    DINB       : IN STD_LOGIC_VECTOR(31 DOWNTO 0);

    DOUTB      : OUT STD_LOGIC_VECTOR(31 DOWNTO 0);

    --ECC

    INJECTSBITERR  : IN STD_LOGIC; --optional port

    INJECTDBITERR  : IN STD_LOGIC; --optional port

    SBITERR        : OUT STD_LOGIC; --optional port

    DBITERR        : OUT STD_LOGIC; --optional port

    RDADDRECC      : OUT STD_LOGIC_VECTOR(9 DOWNTO 0); --optional port

 -- AXI BMG Input and Output Port Declarations

    -- AXI Global Signals

    S_ACLK                         : IN  STD_LOGIC;

    S_AXI_AWID                     : IN  STD_LOGIC_VECTOR(3 DOWNTO 0);

    S_AXI_AWADDR                   : IN  STD_LOGIC_VECTOR(31 DOWNTO 0);

    S_AXI_AWLEN                    : IN  STD_LOGIC_VECTOR(7 DOWNTO 0);

    S_AXI_AWSIZE                   : IN  STD_LOGIC_VECTOR(2 DOWNTO 0);

    S_AXI_AWBURST                  : IN  STD_LOGIC_VECTOR(1 DOWNTO 0);

    S_AXI_AWVALID                  : IN  STD_LOGIC;

    S_AXI_AWREADY                  : OUT STD_LOGIC;

    S_AXI_WDATA                    : IN  STD_LOGIC_VECTOR(7  DOWNTO 0);

    S_AXI_WSTRB                    : IN  STD_LOGIC_VECTOR(0  DOWNTO 0);

    S_AXI_WLAST                    : IN  STD_LOGIC;

    S_AXI_WVALID                   : IN  STD_LOGIC;

    S_AXI_WREADY                   : OUT STD_LOGIC;

    S_AXI_BID                      : OUT STD_LOGIC_VECTOR(3  DOWNTO 0):= (OTHERS => '0');

    S_AXI_BRESP                    : OUT STD_LOGIC_VECTOR(1 DOWNTO 0);

    S_AXI_BVALID                   : OUT STD_LOGIC;

    S_AXI_BREADY                   : IN  STD_LOGIC;

    -- AXI Full/Lite Slave Read (Write side)

    S_AXI_ARID                     : IN  STD_LOGIC_VECTOR(3  DOWNTO 0);

    S_AXI_ARADDR                   : IN  STD_LOGIC_VECTOR(31 DOWNTO 0);

    S_AXI_ARLEN                    : IN  STD_LOGIC_VECTOR(7 DOWNTO 0);

    S_AXI_ARSIZE                   : IN  STD_LOGIC_VECTOR(2 DOWNTO 0);

    S_AXI_ARBURST                  : IN  STD_LOGIC_VECTOR(1 DOWNTO 0);

    S_AXI_ARVALID                  : IN  STD_LOGIC;

    S_AXI_ARREADY                  : OUT STD_LOGIC;

    S_AXI_RID                      : OUT STD_LOGIC_VECTOR(3  DOWNTO 0):= (OTHERS => '0');

    S_AXI_RDATA                    : OUT STD_LOGIC_VECTOR(31  DOWNTO 0);

    S_AXI_RRESP                    : OUT STD_LOGIC_VECTOR(1 DOWNTO 0);

    S_AXI_RLAST                    : OUT STD_LOGIC;

    S_AXI_RVALID                   : OUT STD_LOGIC;

    S_AXI_RREADY                   : IN  STD_LOGIC;

    -- AXI Full/Lite Sideband Signals

    S_AXI_INJECTSBITERR            : IN  STD_LOGIC;

    S_AXI_INJECTDBITERR            : IN  STD_LOGIC;

    S_AXI_SBITERR                  : OUT STD_LOGIC;

    S_AXI_DBITERR                  : OUT STD_LOGIC;

    S_AXI_RDADDRECC                : OUT STD_LOGIC_VECTOR(9  DOWNTO 0);

    S_ARESETN                      : IN  STD_LOGIC

  );

END bmg_wrapper;

ARCHITECTURE xilinx OF bmg_wrapper IS

  COMPONENT buffermem_top IS

  PORT (

      --Port A

    ENA            : IN STD_LOGIC;  --opt port

    WEA            : IN STD_LOGIC_VECTOR(0 DOWNTO 0);

    ADDRA          : IN STD_LOGIC_VECTOR(11 DOWNTO 0);

    DINA           : IN STD_LOGIC_VECTOR(7 DOWNTO 0);

    DOUTA          : OUT STD_LOGIC_VECTOR(7 DOWNTO 0);

    CLKA       : IN STD_LOGIC;

      --Port B

    ENB            : IN STD_LOGIC;  --opt port

    WEB            : IN STD_LOGIC_VECTOR(0 DOWNTO 0);

    ADDRB          : IN STD_LOGIC_VECTOR(9 DOWNTO 0);

    DINB           : IN STD_LOGIC_VECTOR(31 DOWNTO 0);

    DOUTB          : OUT STD_LOGIC_VECTOR(31 DOWNTO 0);

    CLKB           : IN STD_LOGIC

  );

  END COMPONENT;

BEGIN

  bmg0 : buffermem_top

    PORT MAP (

      --Port A

      ENA        => ENA,

      WEA        => WEA,

      ADDRA      => ADDRA,

      DINA       => DINA,

      DOUTA      => DOUTA,

      CLKA       => CLKA,

      --Port B

      ENB        => ENB,

      WEB        => WEB,

      ADDRB      => ADDRB,

      DINB       => DINB,

      DOUTB      => DOUTB,

      CLKB       => CLKB

      );

END xilinx;