lib/implementations/deserializer_3x1_impl.xml

   1 <!DOCTYPE deserializer_3x1>
   2 <block_impl ref_name="deserializer_3x1.xml" ref_md5="">
   3   <comments>
   4     <author lastname="" mail="" firstname=""/>
   5     <date creation="2018-01-10"/>
   6     <related_files list=""/>
   7     <description>gre</description>
   8     <notes>gre</notes>
   9   </comments>
  10   <libraries>
  11     <library name="ieee">
  12       <package name="std_logic_1164" use="all"/>
  13       <package name="numeric_std" use="all"/>
  14     </library>
  15   </libraries>
  16   <architecture>
  17 -- Signals
  18 signal do_out : std_logic;
  19 signal data1_reg : std_logic_vector(in_width-1 downto 0);
  20 signal data2_reg : std_logic_vector(in_width-1 downto 0);
  21
  22 signal count : unsigned(1 downto 0);
  23
  24 begin
  25
  26 deser_process : process (@{clk}, @{reset})
  27 begin
  28 if @{reset} = '1' then
  29 count &lt;= to_unsigned(0, 2);
  30 data1_reg &lt;= (others => '0');
  31 data2_reg &lt;= (others => '0');
  32 @{data1_out} &lt;= (others => '0');
  33 @{data2_out} &lt;= (others => '0');
  34 @{data3_out} &lt;= (others => '0');
  35 do_out &lt;= '0';
  36
  37 elsif rising_edge(@{clk}) then
  38
  39 do_out &lt;= '0';
  40 @{data1_out} &lt;= (others => '0');
  41 @{data2_out} &lt;= (others => '0');
  42 @{data3_out} &lt;= (others => '0');
  43
  44 if @{data_in_enb} = '1' then
  45
  46 if count = 0 then
  47 data1_reg &lt;= @{data_in};
  48 count &lt;= count + 1;
  49 elsif count = 1 then
  50 data2_reg &lt;= @{data_in};
  51 count &lt;= count + 1;
  52 elsif count = 2 then
  53 @{data1_out} &lt;= data1_reg;
  54 @{data2_out} &lt;= data2_reg;
  55 @{data3_out} &lt;= @{data_in};
  56 do_out &lt;= '1';
  57 count &lt;= to_unsigned(0, 2);
  58 end if;
  59 end if;
  60 end if;
  61
  62 end process deser_process;
  63
  64 @{data1_out_enb} &lt;= do_out;
  65 @{data2_out_enb} &lt;= do_out;
  66 @{data3_out_enb} &lt;= do_out;
  67 </architecture>
  68   <patterns>
  69     <delta value="3"/>
  70     <consumption>
  71       <input pattern="111" name="data_in_enb"/>
  72     </consumption>
  73     <production counter="3">
  74       <output pattern="0001" name="data1_out_enb"/>
  75       <output pattern="0001" name="data2_out_enb"/>
  76       <output pattern="0001" name="data3_out_enb"/>
  77     </production>
  78   </patterns>
  79 </block_impl>