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-- ICI_EGSE_PROTOCOL.vhd
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-- ICI_EGSE_PROTOCOL.vhd
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library IEEE;
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use IEEE.std_logic_1164.all;
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use IEEE.numeric_std.all;
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entity ICI_EGSE_PROTOCOL is
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generic(WordSize : integer := 8;WordCnt : integer :=144;MinFCount : integer := 64;Simu : integer :=0);
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port(
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clk : in std_logic;
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reset : in std_logic;
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WEN : in std_logic;
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WordCnt_in : in integer range 0 to WordCnt-1;
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MinfCnt_in : in integer range 0 to MinFCount-1;
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DATAIN : in std_logic_vector (WordSize-1 downto 0);
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FULL : in std_logic;
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WR : out std_logic;
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DATAOUT : out std_logic_vector (WordSize-1 downto 0)
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);
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end ICI_EGSE_PROTOCOL;
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architecture ar_ICI_EGSE_PROTOCOL of ICI_EGSE_PROTOCOL is
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type DATA_pipe_t is array(NATURAL RANGE <>) of std_logic_vector (WordSize-1 downto 0);
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signal DATA_pipe : DATA_pipe_t(12 downto 0);
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signal WR_pipe : std_logic_vector(12 downto 0);
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signal headerSended : std_logic := '0';
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signal counter : std_logic_vector(7 downto 0):=(others => '0');
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begin
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WR <= WR_pipe(0);
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DATAOUT <= DATA_pipe(0);
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process(reset,clk)
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begin
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if reset = '0' then
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WR_pipe(12 downto 0) <= (others => '1');
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counter <= (others => '0');
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rstloop: for i in 0 to 12 loop
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DATA_pipe(i) <= X"00";
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end loop;
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headerSended <= '0';
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elsif clk'event and clk ='1' then
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if WordCnt_in = 1 and headerSended = '0' then
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counter <= (others => '0');
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WR_pipe(4 downto 1) <= (others => '0');
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WR_pipe(1) <= '0';
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WR_pipe(3) <= '0';
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WR_pipe(5) <= '0';
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WR_pipe(7) <= '0';
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WR_pipe(9) <= '0';
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WR_pipe(11) <= '0';
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DATA_pipe(1) <= counter; -- Size
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DATA_pipe(3) <= X"5a";
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DATA_pipe(5) <= X"f0";
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DATA_pipe(7) <= X"0f";
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DATA_pipe(9) <= X"a5";
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DATA_pipe(11) <= std_logic_vector(TO_UNSIGNED(MinfCnt_in,WordSize));
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WR_pipe(0) <= '1';
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WR_pipe(2) <= '1';
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WR_pipe(4) <= '1';
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WR_pipe(6) <= '1';
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WR_pipe(8) <= '1';
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WR_pipe(10) <= '1';
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WR_pipe(12) <= '1';
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DATA_pipe(0) <= X"00";
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DATA_pipe(2) <= X"00";
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DATA_pipe(4) <= X"00";
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DATA_pipe(6) <= X"00";
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DATA_pipe(10) <= X"00";
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DATA_pipe(12) <= X"00";
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headerSended <= '1';
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elsif (FULL = '0') then
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if WordCnt_in /= 1 then
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headerSended <= '0';
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end if;
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DATA_pipe(0) <= DATA_pipe(1);
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DATA_pipe(1) <= DATA_pipe(2);
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DATA_pipe(2) <= DATA_pipe(3);
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DATA_pipe(3) <= DATA_pipe(4);
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DATA_pipe(4) <= DATA_pipe(5);
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DATA_pipe(5) <= DATA_pipe(6);
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DATA_pipe(6) <= DATA_pipe(7);
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DATA_pipe(7) <= DATA_pipe(8);
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DATA_pipe(8) <= DATA_pipe(9);
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DATA_pipe(9) <= DATA_pipe(10);
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DATA_pipe(10) <= DATA_pipe(11);
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DATA_pipe(11) <= DATA_pipe(12);
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DATA_pipe(12) <= DATAIN;
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WR_pipe(12 downto 0) <= WEN & WR_pipe(12 downto 1);
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if(WR_pipe(0) = '0') then
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counter <= std_logic_vector(UNSIGNED(counter) + 1);
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end if;
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else
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WR_pipe(0) <= '1';
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if WordCnt_in /= 1 then
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headerSended <= '0';
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end if;
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end if;
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end if;
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end process;
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end ar_ICI_EGSE_PROTOCOL;
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