گروه فنی مهندسی آرکام

entity gs8320z36gt_sram_ctrl is

    generic

    (

        sram_hold_time      : time        := 500 ps;

        read_after_write    : integer     := 0;

        data_width          : integer     := 36;

        addr_width          : integer     := 20

    );    

    port   

    (   

        clk                 : in          std_logic;

        rst                 : in          std_logic;

        sram_addr           : in          std_logic_vector(addr_width-1 downto 0);

        sram_rd_en          : in          std_logic;

        sram_wr_en          : in          std_logic;

        sram_din            : in          std_logic_vector(data_width - 1 downto 0);

        sram_dout           : out         std_logic_vector(data_width - 1 downto 0);

        sram_rd_ack         : out         std_logic;

        sram_wr_ack         : out         std_logic;

        SRAM_DQ             : inout       std_logic_vector(data_width - 1 downto 0);

        SRAM_A              : out         std_logic_vector(addr_width - 1 downto 0);

        SRAM_CLK            : out         std_logic;

        SRAM_CLKEL          : out         std_logic;

        SRAM_WL             : out         std_logic;

        SRAM_GL             : out         std_logic;

        SRAM_E1L            : out         std_logic;

        SRAM_BAL            : out         std_logic;

        SRAM_BBL            : out         std_logic;

        SRAM_ADV            : out         std_logic;

        SRAM_ZZ             : out         std_logic;

        SRAM_FTL            : out         std_logic;

        SRAM_LBOL           : out         std_logic

    );

end entity;

...

    signal io_direction     : std_logic; -- output = '0' / input = '1'

...

    IOBUF1_for:

    for i in 0 to data_width - 1 generate

        IOBUF_Inst: IOBUF

        port map

        (

            O                => sram_dout(i),

            IO               => SRAM_DQ(i),

            I                => sram_din_r3(i),

            T                => io_direction

        );

    end generate;