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debugging of mupix unpacker.
authorTobias Weber <toweber86@gmail.com>
Mon, 23 Jul 2018 19:58:23 +0000 (21:58 +0200)
committerTobias Weber <toweber86@gmail.com>
Mon, 23 Jul 2018 19:58:23 +0000 (21:58 +0200)
mupix/Mupix8/sources/Datapath/DataWidthConversion.vhd patch | blob | history
mupix/Mupix8/sources/Datapath/MuPixDataLink_new.vhd patch | blob | history
mupix/Mupix8/sources/Datapath/MuPixUnpacker.vhd patch | blob | history
mupix/Mupix8/sources/Simulation/8b10_dec.vhd patch | blob | history
mupix/Mupix8/tb/MupixUnpackerTest.vhd [new file with mode: 0644] patch | blob

diff --git a/mupix/Mupix8/sources/Datapath/DataWidthConversion.vhd b/mupix/Mupix8/sources/Datapath/DataWidthConversion.vhd
index 0591b46d5cbbf0eb39fbbbe0857d00c745397c50..a78359237914e70af796c24b05050fe11818005c 100644 (file)
--- a/mupix/Mupix8/sources/Datapath/DataWidthConversion.vhd
+++ b/mupix/Mupix8/sources/Datapath/DataWidthConversion.vhd
@@ -1,7 +1,8 @@
 -------------------------------------------------------------------------------------------
 -- converts the 40 bit input data of the mupix into
 -- 32 bit portions + padding of the last word for readout with the TRB
--- TODO: after adding the hit time sorter the data width conversion should be moved there
+-- TODO: move this after circular buffer and implement new slow control readout
+--       this should make extra bonadry word unneccessary
 -- T. Weber
 -------------------------------------------------------------------------------------------
 library ieee;
@@ -48,7 +49,7 @@ architecture rtl of DataWidthConversion is
   type counter_array is array (0 to 1) of integer range 0 to 4;
   signal wordstosend                          : counter_array                := (0, 0);
   signal fifo_wrcnt_reg                       : std_logic_vector(9 downto 0) := (others => '1');
-  signal pause_cnt_i                          : integer range 0 to 7         := 0;
+  signal pause_cnt_i                          : integer range 0 to 24        := 0;
   signal readenable_cnt_i                     : integer range 0 to 4         := 0;
   signal fill_index                           : integer range 0 to 1         := 0;
   signal fill_cnt                             : integer range 0 to 4         := 0;
@@ -81,7 +82,7 @@ begin  -- architecture rtl
               readenable_cnt_i        <= 1;
               wordstosend(fill_index) <= 4;
               pause_cnt_i             <= 0;
-            elsif pause_cnt_i = 6 then
+            elsif pause_cnt_i = 23 then
               pause_cnt_i    <= 0;
               fifo_wrcnt_reg <= fifo_wrcnt;
               if fifo_wrcnt = fifo_wrcnt_reg and fifo_empty = '0' then
@@ -94,6 +95,7 @@ begin  -- architecture rtl
               fifo_read_fsm           <= idle;
               wordstosend(fill_index) <= 0;
             end if;
+            
           when waitfifo =>
             fifo_wrcnt_reg <= (others => '1');
             fifo_read_fsm  <= reading;
@@ -101,6 +103,7 @@ begin  -- architecture rtl
               readenable_cnt_i <= 2;
               fifo_rden        <= '1';
             end if;
+            
           when reading =>
             if readenable_cnt_i < wordstosend(fill_index) then
               readenable_cnt_i <= readenable_cnt_i + 1;
@@ -153,12 +156,16 @@ begin  -- architecture rtl
               start_sending_accpted <= '1';
               writing_fsm           <= writing;
               wordssend             <= 0;
+              -- extra bondary word, remove for testbench
+              buff_wren_i <= '1';
+              dataout_i   <= x"F0F0F0F0";
               if read_index = 1 then
                 read_index <= 0;
               else
                 read_index <= read_index + 1;
               end if;
             end if;
+            
           when writing =>
             case wordssend is
               when 0 =>
diff --git a/mupix/Mupix8/sources/Datapath/MuPixDataLink_new.vhd b/mupix/Mupix8/sources/Datapath/MuPixDataLink_new.vhd
index 22a71ccbc70c16baa570db2633205185d306dc54..29cc9f00aa015709d194bb0a483ac4af7bc5477e 100644 (file)
--- a/mupix/Mupix8/sources/Datapath/MuPixDataLink_new.vhd
+++ b/mupix/Mupix8/sources/Datapath/MuPixDataLink_new.vhd
@@ -221,8 +221,6 @@ architecture rtl of MupixDataLinkWithUnpacker is
       valid             : in  std_logic;
       hit_out           : out std_logic_vector(g_hitsize - 1 downto 0);
       hit_enable        : out std_logic;
-      coarsecounter     : out std_logic_vector(g_countersize - 1 downto 0);
-      counter_enable    : out std_logic;
       link_flag         : out std_logic;
       errorcounter_gray : out std_logic_vector(31 downto 0);
       errorcounter      : out std_logic_vector(31 downto 0));
@@ -527,8 +525,6 @@ begin
         valid             => unpacker_valid_i(j),
         hit_out           => fifo_data_ii((j + 1)*c_mupixhitsize - 1 downto j*c_mupixhitsize),
         hit_enable        => fifo_wren_i(j),
-        coarsecounter     => open,
-        counter_enable    => open,
         link_flag         => open,
         errorcounter_gray => unpacker_error_counter(j),
         errorcounter      => open);
diff --git a/mupix/Mupix8/sources/Datapath/MuPixUnpacker.vhd b/mupix/Mupix8/sources/Datapath/MuPixUnpacker.vhd
index 6ce33e1d003ed4d4be25dc45ca4e8e712125640d..96a25e077d52762a5ba1a4b6d53a831063ae4627 100644 (file)
--- a/mupix/Mupix8/sources/Datapath/MuPixUnpacker.vhd
+++ b/mupix/Mupix8/sources/Datapath/MuPixUnpacker.vhd
@@ -23,8 +23,6 @@ entity MupixUnpacker is
     valid             : in  std_logic;  -- incoming data valid
     hit_out           : out std_logic_vector(g_hitsize - 1 downto 0);  -- mupix 8 word output
     hit_enable        : out std_logic;  -- new hit word
-    coarsecounter     : out std_logic_vector(g_countersize - 1 downto 0);  --coarsecounter output
-    counter_enable    : out std_logic;  -- new counter value
     link_flag         : out std_logic;  -- link flag
     errorcounter_gray : out std_logic_vector(31 downto 0);  -- error counter gray code
     errorcounter      : out std_logic_vector(31 downto 0));  -- error counter
@@ -35,13 +33,13 @@ architecture RTL of MupixUnpacker is
   type unpacker_fsm_type is (idle, receive_err, counter, link, data);
   signal unpacker_state : unpacker_fsm_type := idle;
 
-  signal data_i         : std_logic_vector(31 downto 0);
-  signal errorcounter_i : unsigned(31 downto 0);
-  signal link_i         : std_logic_vector(7 downto 0);
-  signal link_reg       : std_logic_vector(7 downto 0);
+  signal data_i         : std_logic_vector(31 downto 0) := (others => '0');
+  signal errorcounter_i : unsigned(31 downto 0) := (others => '0');
+  signal link_i         : std_logic_vector(7 downto 0) := (others => '0');
+  signal link_reg       : std_logic_vector(7 downto 0) := (others => '0');
   signal link_toggle    : std_logic;
   signal data_mode      : std_logic;
-  signal cnt4           : unsigned(1 downto 0);
+  signal cnt4           : unsigned(1 downto 0) := (others => '0');
   signal counter_seen   : std_logic;
   signal coarse_reg     : std_logic;
   signal hit_reg        : std_logic;
@@ -78,13 +76,14 @@ begin
 
         hit_enable     <= '0';
         hit_out        <= (others => '0');
-        coarsecounter  <= (others => '0');
-        counter_enable <= '0';
+        data_i         <= (others => '0');
         link_flag      <= '0';
         link_flag_reg  <= '0';
 
         link_i      <= (others => '0');
         link_reg    <= (others => '0');
+        hit_reg     <= '0';
+        coarse_reg  <= '0';
         link_toggle <= '0';
 
         errorcounter_i <= (others => '0');
@@ -102,15 +101,13 @@ begin
         hit_reg        <= '0';
         inc_en_i       <= '0';
         hit_enable     <= hit_reg or coarse_reg;
-        counter_enable <= coarse_reg;
         link_flag      <= link_flag_reg;
 
-        coarsecounter <= data_i(7 downto 0) & data_i(31 downto 8);
         if coarse_reg = '1' then
-          hit_out <= data_i(31 downto 8) & link_i(3 downto 0) & x"3" & data_i(7 downto 0);
-        -- binary counter & link & x"3" & gray counter
+          hit_out <= x"3" & link_i(3 downto 0) & data_i(31 downto 0);
+        -- x"3" & link & binary counter
         elsif hit_reg = '1' then
-          hit_out <= link_i & data_i(7 downto 0) & data_i(31 downto 24) & data_i(23 downto 18) & data_i(17 downto 8);
+          hit_out <= link_i & data_i(7 downto 0) & data_i(15 downto 8) & data_i(21 downto 16) & data_i(31 downto 22);
         -- Link & Row & Col & Charge & TS
         end if;
 
@@ -176,16 +173,16 @@ begin
               end if;
 
             when data =>
-              if komma = '1' then
+              if komma = '0' then
                 cnt4 <= cnt4 + 1;
                 if cnt4 = "11" then
                   hit_reg        <= '1';
                   unpacker_state <= idle;
-                elsif komma = '1' and data_in = k28_5 then
-                  unpacker_state <= idle;
-                else
-                  unpacker_state <= receive_err;
                 end if;
+              elsif komma = '1' and data_in = k28_5 then
+                unpacker_state <= idle;
+              else
+                unpacker_state <= receive_err;
               end if;
 
             when receive_err =>
diff --git a/mupix/Mupix8/sources/Simulation/8b10_dec.vhd b/mupix/Mupix8/sources/Simulation/8b10_dec.vhd
index b239e921b9c959bd3be993f8db5db0813b58dc76..a3e5b8262e3a8a539b627df6e65d89f87f17f71c 100644 (file)
--- a/mupix/Mupix8/sources/Simulation/8b10_dec.vhd
+++ b/mupix/Mupix8/sources/Simulation/8b10_dec.vhd
@@ -1,1541 +1,238 @@
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+-------------------------------------------------------------------------------
+--
+-- Title       : 8b/10b Decoder
+-- Design      : 10-bit to 8-bit Decoder
+-- Project     : 8000 - 8b10b_encdec
+-- Author      : Ken Boyette
+-- Company     : Critia Computer, Inc.
+--
+-------------------------------------------------------------------------------
+--
+-- File                        : 8b10b_dec.vhd
+-- Version             : 1.0
+-- Generated   : 09.27.2006
+-- By                  : Itf2Vhdl ver. 1.20
+--
+-------------------------------------------------------------------------------
+--
+-- Description :
+--     This module provides 10-bit to 9-bit encoding.
+--     It accepts 10-bit encoded parallel data input and generates 8-bit decoded 
+--     data output in accordance with the 8b/10b standard method.  This method was
+--     described in the 1983 IBM publication "A DC-Balanced, Partitioned-Block, 
+--     8B/10B Transmission Code" by A.X. Widmer and P.A. Franaszek.  The method
+--     WAS granted a U.S. Patent #4,486,739 in 1984; now expired.
+--
+--             The parallel 10-bit Binary input represent 1024 possible values, called
+--             characters - only 268 of which are valid.
+--
+--             The     input is a 10-bit encoded character whose bits are identified as:
+--                     AI, BI, CI, DI, EI, II, FI, GI, HI, JI (Least Significant to Most)
+--
+--             In addition to 256 data output characters, there are 12 special control
+--             or K, characters defined for command and synchronization use.
+--
+--             The eight data output bits are identified as:
+--                     HI, GI, FI, EI, DI, CI, BI, AI (Most Significant to Least)
+--
+--             The output, KO, is used to indicate the output value is one of the
+--             control characters.
+--
+--             All inputs and outputs are synchronous with an externally supplied
+--             byte rate clock BYTECLK.
+--             The encoded output is valid one clock after the input.
+--             There is a reset input, RESET, to reset the logic.  The next rising
+--             BYTECLK after RESET is deasserted latches valid input data.
+--
+--             Note: This VHDL structure closely follows the discrete logic defined
+--             in the original article and the subsequent patent.  The Figures 
+--             referenced are those in the patent.
+-------------------------------------------------------------------------------
+--     This program is licensed under the GPL
+-------------------------------------------------------------------------------
+
+library IEEE;
+use IEEE.STD_LOGIC_1164.all;
+
+entity dec_8b10b is    
+    port(
+               RESET : in std_logic ;  -- Global asynchronous reset (AH) 
+               RBYTECLK : in std_logic ;       -- Master synchronous receive byte clock
+               input : in std_logic_vector(9 downto 0); -- Encoded input (LS..MS)              
+               KO : out std_logic ;    -- Control (K) character indicator (AH)
+               output : out std_logic_vector(7 downto 0)       -- Decoded out (MS..LS)
+           );
+end dec_8b10b;
+
+architecture behavioral of dec_8b10b is
+
+-- Signals to tie things together
+       signal ANEB, CNED, EEI, P13, P22, P31 : std_logic ;     -- Figure 10 Signals
+       signal IKA, IKB, IKC : std_logic ;      -- Figure 11 Signals
+       signal XA, XB, XC, XD, XE : std_logic ; -- Figure 12 Signals    
+       signal OR121, OR122, OR123, OR124, OR125, OR126, OR127 : std_logic ;
+       signal XF, XG, XH : std_logic ; -- Figure 13 Signals
+       signal OR131, OR132, OR133, OR134, IOR134 : std_logic ;
+       signal AI, BI, CI, DI, EI, II, FI, GI, HI, JI : std_logic;
+       signal HO, GO, FO, EO, DO, CO, BO, AO : std_logic;
+
+begin
     
+    AI <= input(0);
+    BI <= input(1);
+    CI <= input(2);
+    DI <= input(3);
+    EI <= input(4);
+    II <= input(5);
+    FI <= input(6);
+    GI <= input(7);
+    HI <= input(8);
+    JI <= input(9);
     
+    output <= HO & GO & FO & EO & DO & CO & BO & AO;
     
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-        <td id="L1" class="blob-num js-line-number" data-line-number="1"></td>
-        <td id="LC1" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>-----------------------------------------------------------------------------</span></td>
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-        <td id="L2" class="blob-num js-line-number" data-line-number="2"></td>
-        <td id="LC2" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span></span></td>
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-        <td id="L3" class="blob-num js-line-number" data-line-number="3"></td>
-        <td id="LC3" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span> Title      : 8b/10b Decoder</span></td>
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-        <td id="L4" class="blob-num js-line-number" data-line-number="4"></td>
-        <td id="LC4" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span> Design     : 10-bit to 8-bit Decoder</span></td>
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-        <td id="L5" class="blob-num js-line-number" data-line-number="5"></td>
-        <td id="LC5" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span> Project    : 8000 - 8b10b_encdec</span></td>
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-        <td id="LC6" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span> Author     : Ken Boyette</span></td>
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-        <td id="LC7" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span> Company    : Critia Computer, Inc.</span></td>
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-        <td id="LC8" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span></span></td>
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-        <td id="LC10" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span></span></td>
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-        <td id="LC11" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span> File                      : 8b10b_dec.vhd</span></td>
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-        <td id="L12" class="blob-num js-line-number" data-line-number="12"></td>
-        <td id="LC12" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span> Version           : 1.0</span></td>
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-        <td id="L13" class="blob-num js-line-number" data-line-number="13"></td>
-        <td id="LC13" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span> Generated : 09.27.2006</span></td>
-      </tr>
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-        <td id="L14" class="blob-num js-line-number" data-line-number="14"></td>
-        <td id="LC14" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span> By                        : Itf2Vhdl ver. 1.20</span></td>
-      </tr>
-      <tr>
-        <td id="L15" class="blob-num js-line-number" data-line-number="15"></td>
-        <td id="LC15" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L16" class="blob-num js-line-number" data-line-number="16"></td>
-        <td id="LC16" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>-----------------------------------------------------------------------------</span></td>
-      </tr>
-      <tr>
-        <td id="L17" class="blob-num js-line-number" data-line-number="17"></td>
-        <td id="LC17" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span></span></td>
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-      <tr>
-        <td id="L18" class="blob-num js-line-number" data-line-number="18"></td>
-        <td id="LC18" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span> Description :</span></td>
-      </tr>
-      <tr>
-        <td id="L19" class="blob-num js-line-number" data-line-number="19"></td>
-        <td id="LC19" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>   This module provides 10-bit to 9-bit encoding.</span></td>
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-        <td id="LC20" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>   It accepts 10-bit encoded parallel data input and generates 8-bit decoded </span></td>
-      </tr>
-      <tr>
-        <td id="L21" class="blob-num js-line-number" data-line-number="21"></td>
-        <td id="LC21" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>   data output in accordance with the 8b/10b standard method.  This method was</span></td>
-      </tr>
-      <tr>
-        <td id="L22" class="blob-num js-line-number" data-line-number="22"></td>
-        <td id="LC22" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>   described in the 1983 IBM publication &quot;A DC-Balanced, Partitioned-Block, </span></td>
-      </tr>
-      <tr>
-        <td id="L23" class="blob-num js-line-number" data-line-number="23"></td>
-        <td id="LC23" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>   8B/10B Transmission Code&quot; by A.X. Widmer and P.A. Franaszek.  The method</span></td>
-      </tr>
-      <tr>
-        <td id="L24" class="blob-num js-line-number" data-line-number="24"></td>
-        <td id="LC24" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>   WAS granted a U.S. Patent #4,486,739 in 1984; now expired.</span></td>
-      </tr>
-      <tr>
-        <td id="L25" class="blob-num js-line-number" data-line-number="25"></td>
-        <td id="LC25" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L26" class="blob-num js-line-number" data-line-number="26"></td>
-        <td id="LC26" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           The parallel 10-bit Binary input represent 1024 possible values, called</span></td>
-      </tr>
-      <tr>
-        <td id="L27" class="blob-num js-line-number" data-line-number="27"></td>
-        <td id="LC27" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           characters - only 268 of which are valid.</span></td>
-      </tr>
-      <tr>
-        <td id="L28" class="blob-num js-line-number" data-line-number="28"></td>
-        <td id="LC28" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L29" class="blob-num js-line-number" data-line-number="29"></td>
-        <td id="LC29" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           The     input is a 10-bit encoded character whose bits are identified as:</span></td>
-      </tr>
-      <tr>
-        <td id="L30" class="blob-num js-line-number" data-line-number="30"></td>
-        <td id="LC30" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>                   AI, BI, CI, DI, EI, II, FI, GI, HI, JI (Least Significant to Most)</span></td>
-      </tr>
-      <tr>
-        <td id="L31" class="blob-num js-line-number" data-line-number="31"></td>
-        <td id="LC31" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L32" class="blob-num js-line-number" data-line-number="32"></td>
-        <td id="LC32" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           In addition to 256 data output characters, there are 12 special control</span></td>
-      </tr>
-      <tr>
-        <td id="L33" class="blob-num js-line-number" data-line-number="33"></td>
-        <td id="LC33" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           or K, characters defined for command and synchronization use.</span></td>
-      </tr>
-      <tr>
-        <td id="L34" class="blob-num js-line-number" data-line-number="34"></td>
-        <td id="LC34" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L35" class="blob-num js-line-number" data-line-number="35"></td>
-        <td id="LC35" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           The eight data output bits are identified as:</span></td>
-      </tr>
-      <tr>
-        <td id="L36" class="blob-num js-line-number" data-line-number="36"></td>
-        <td id="LC36" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>                   HI, GI, FI, EI, DI, CI, BI, AI (Most Significant to Least)</span></td>
-      </tr>
-      <tr>
-        <td id="L37" class="blob-num js-line-number" data-line-number="37"></td>
-        <td id="LC37" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L38" class="blob-num js-line-number" data-line-number="38"></td>
-        <td id="LC38" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           The output, KO, is used to indicate the output value is one of the</span></td>
-      </tr>
-      <tr>
-        <td id="L39" class="blob-num js-line-number" data-line-number="39"></td>
-        <td id="LC39" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           control characters.</span></td>
-      </tr>
-      <tr>
-        <td id="L40" class="blob-num js-line-number" data-line-number="40"></td>
-        <td id="LC40" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L41" class="blob-num js-line-number" data-line-number="41"></td>
-        <td id="LC41" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           All inputs and outputs are synchronous with an externally supplied</span></td>
-      </tr>
-      <tr>
-        <td id="L42" class="blob-num js-line-number" data-line-number="42"></td>
-        <td id="LC42" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           byte rate clock BYTECLK.</span></td>
-      </tr>
-      <tr>
-        <td id="L43" class="blob-num js-line-number" data-line-number="43"></td>
-        <td id="LC43" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           The encoded output is valid one clock after the input.</span></td>
-      </tr>
-      <tr>
-        <td id="L44" class="blob-num js-line-number" data-line-number="44"></td>
-        <td id="LC44" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           There is a reset input, RESET, to reset the logic.  The next rising</span></td>
-      </tr>
-      <tr>
-        <td id="L45" class="blob-num js-line-number" data-line-number="45"></td>
-        <td id="LC45" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           BYTECLK after RESET is deasserted latches valid input data.</span></td>
-      </tr>
-      <tr>
-        <td id="L46" class="blob-num js-line-number" data-line-number="46"></td>
-        <td id="LC46" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L47" class="blob-num js-line-number" data-line-number="47"></td>
-        <td id="LC47" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           Note: This VHDL structure closely follows the discrete logic defined</span></td>
-      </tr>
-      <tr>
-        <td id="L48" class="blob-num js-line-number" data-line-number="48"></td>
-        <td id="LC48" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           in the original article and the subsequent patent.  The Figures </span></td>
-      </tr>
-      <tr>
-        <td id="L49" class="blob-num js-line-number" data-line-number="49"></td>
-        <td id="LC49" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>           referenced are those in the patent.</span></td>
-      </tr>
-      <tr>
-        <td id="L50" class="blob-num js-line-number" data-line-number="50"></td>
-        <td id="LC50" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>-----------------------------------------------------------------------------</span></td>
-      </tr>
-      <tr>
-        <td id="L51" class="blob-num js-line-number" data-line-number="51"></td>
-        <td id="LC51" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>   This program is licensed under the GPL</span></td>
-      </tr>
-      <tr>
-        <td id="L52" class="blob-num js-line-number" data-line-number="52"></td>
-        <td id="LC52" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span>-----------------------------------------------------------------------------</span></td>
-      </tr>
-      <tr>
-        <td id="L53" class="blob-num js-line-number" data-line-number="53"></td>
-        <td id="LC53" class="blob-code blob-code-inner js-file-line">
-</td>
-      </tr>
-      <tr>
-        <td id="L54" class="blob-num js-line-number" data-line-number="54"></td>
-        <td id="LC54" class="blob-code blob-code-inner js-file-line"><span class="pl-k">library</span> IEEE;</td>
-      </tr>
-      <tr>
-        <td id="L55" class="blob-num js-line-number" data-line-number="55"></td>
-        <td id="LC55" class="blob-code blob-code-inner js-file-line"><span class="pl-k">use</span> IEEE.STD_LOGIC_1164.<span class="pl-k">all</span>;</td>
-      </tr>
-      <tr>
-        <td id="L56" class="blob-num js-line-number" data-line-number="56"></td>
-        <td id="LC56" class="blob-code blob-code-inner js-file-line">
-</td>
-      </tr>
-      <tr>
-        <td id="L57" class="blob-num js-line-number" data-line-number="57"></td>
-        <td id="LC57" class="blob-code blob-code-inner js-file-line"><span class="pl-k">entity</span> <span class="pl-en">dec_8b10b</span> <span class="pl-k">is</span>        </td>
-      </tr>
-      <tr>
-        <td id="L58" class="blob-num js-line-number" data-line-number="58"></td>
-        <td id="LC58" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">port</span>(</td>
-      </tr>
-      <tr>
-        <td id="L59" class="blob-num js-line-number" data-line-number="59"></td>
-        <td id="LC59" class="blob-code blob-code-inner js-file-line">          RESET : <span class="pl-k">in</span> <span class="pl-c1">std_logic</span> ;     <span class="pl-c"><span class="pl-c">--</span> Global asynchronous reset (AH) </span></td>
-      </tr>
-      <tr>
-        <td id="L60" class="blob-num js-line-number" data-line-number="60"></td>
-        <td id="LC60" class="blob-code blob-code-inner js-file-line">          RBYTECLK : <span class="pl-k">in</span> <span class="pl-c1">std_logic</span> ;  <span class="pl-c"><span class="pl-c">--</span> Master synchronous receive byte clock</span></td>
-      </tr>
-      <tr>
-        <td id="L61" class="blob-num js-line-number" data-line-number="61"></td>
-        <td id="LC61" class="blob-code blob-code-inner js-file-line">          AI, BI, CI, DI, EI, II : <span class="pl-k">in</span> <span class="pl-c1">std_logic</span> ;</td>
-      </tr>
-      <tr>
-        <td id="L62" class="blob-num js-line-number" data-line-number="62"></td>
-        <td id="LC62" class="blob-code blob-code-inner js-file-line">          FI, GI, HI, JI : <span class="pl-k">in</span> <span class="pl-c1">std_logic</span> ; <span class="pl-c"><span class="pl-c">--</span> Encoded input (LS..MS)             </span></td>
-      </tr>
-      <tr>
-        <td id="L63" class="blob-num js-line-number" data-line-number="63"></td>
-        <td id="LC63" class="blob-code blob-code-inner js-file-line">          KO : <span class="pl-k">out</span> <span class="pl-c1">std_logic</span> ;       <span class="pl-c"><span class="pl-c">--</span> Control (K) character indicator (AH)</span></td>
-      </tr>
-      <tr>
-        <td id="L64" class="blob-num js-line-number" data-line-number="64"></td>
-        <td id="LC64" class="blob-code blob-code-inner js-file-line">          HO, GO, FO, EO, DO, CO, BO, AO : <span class="pl-k">out</span> <span class="pl-c1">std_logic</span>     <span class="pl-c"><span class="pl-c">--</span> Decoded out (MS..LS)</span></td>
-      </tr>
-      <tr>
-        <td id="L65" class="blob-num js-line-number" data-line-number="65"></td>
-        <td id="LC65" class="blob-code blob-code-inner js-file-line">      );</td>
-      </tr>
-      <tr>
-        <td id="L66" class="blob-num js-line-number" data-line-number="66"></td>
-        <td id="LC66" class="blob-code blob-code-inner js-file-line"><span class="pl-k">end</span> <span class="pl-en">dec_8b10b</span>;</td>
-      </tr>
-      <tr>
-        <td id="L67" class="blob-num js-line-number" data-line-number="67"></td>
-        <td id="LC67" class="blob-code blob-code-inner js-file-line">
-</td>
-      </tr>
-      <tr>
-        <td id="L68" class="blob-num js-line-number" data-line-number="68"></td>
-        <td id="LC68" class="blob-code blob-code-inner js-file-line"><span class="pl-k">architecture</span> <span class="pl-en">behavioral</span> <span class="pl-k">of</span> <span class="pl-en">dec_8b10b</span> <span class="pl-k">is</span></td>
-      </tr>
-      <tr>
-        <td id="L69" class="blob-num js-line-number" data-line-number="69"></td>
-        <td id="LC69" class="blob-code blob-code-inner js-file-line">
-</td>
-      </tr>
-      <tr>
-        <td id="L70" class="blob-num js-line-number" data-line-number="70"></td>
-        <td id="LC70" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">--</span> Signals to tie things together</span></td>
-      </tr>
-      <tr>
-        <td id="L71" class="blob-num js-line-number" data-line-number="71"></td>
-        <td id="LC71" class="blob-code blob-code-inner js-file-line">  <span class="pl-k">signal</span> ANEB, CNED, EEI, P13, P22, P31 : <span class="pl-c1">std_logic</span> ;        <span class="pl-c"><span class="pl-c">--</span> Figure 10 Signals</span></td>
-      </tr>
-      <tr>
-        <td id="L72" class="blob-num js-line-number" data-line-number="72"></td>
-        <td id="LC72" class="blob-code blob-code-inner js-file-line">  <span class="pl-k">signal</span> IKA, IKB, IKC : <span class="pl-c1">std_logic</span> ; <span class="pl-c"><span class="pl-c">--</span> Figure 11 Signals</span></td>
-      </tr>
-      <tr>
-        <td id="L73" class="blob-num js-line-number" data-line-number="73"></td>
-        <td id="LC73" class="blob-code blob-code-inner js-file-line">  <span class="pl-k">signal</span> XA, XB, XC, XD, XE : <span class="pl-c1">std_logic</span> ;    <span class="pl-c"><span class="pl-c">--</span> Figure 12 Signals       </span></td>
-      </tr>
-      <tr>
-        <td id="L74" class="blob-num js-line-number" data-line-number="74"></td>
-        <td id="LC74" class="blob-code blob-code-inner js-file-line">  <span class="pl-k">signal</span> OR121, OR122, OR123, OR124, OR125, OR126, OR127 : <span class="pl-c1">std_logic</span> ;</td>
-      </tr>
-      <tr>
-        <td id="L75" class="blob-num js-line-number" data-line-number="75"></td>
-        <td id="LC75" class="blob-code blob-code-inner js-file-line">  <span class="pl-k">signal</span> XF, XG, XH : <span class="pl-c1">std_logic</span> ;    <span class="pl-c"><span class="pl-c">--</span> Figure 13 Signals</span></td>
-      </tr>
-      <tr>
-        <td id="L76" class="blob-num js-line-number" data-line-number="76"></td>
-        <td id="LC76" class="blob-code blob-code-inner js-file-line">  <span class="pl-k">signal</span> OR131, OR132, OR133, OR134, IOR134 : <span class="pl-c1">std_logic</span> ;</td>
-      </tr>
-      <tr>
-        <td id="L77" class="blob-num js-line-number" data-line-number="77"></td>
-        <td id="LC77" class="blob-code blob-code-inner js-file-line">
-</td>
-      </tr>
-      <tr>
-        <td id="L78" class="blob-num js-line-number" data-line-number="78"></td>
-        <td id="LC78" class="blob-code blob-code-inner js-file-line"><span class="pl-k">begin</span></td>
-      </tr>
-      <tr>
-        <td id="L79" class="blob-num js-line-number" data-line-number="79"></td>
-        <td id="LC79" class="blob-code blob-code-inner js-file-line">
-</td>
-      </tr>
-      <tr>
-        <td id="L80" class="blob-num js-line-number" data-line-number="80"></td>
-        <td id="LC80" class="blob-code blob-code-inner js-file-line">  <span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L81" class="blob-num js-line-number" data-line-number="81"></td>
-        <td id="LC81" class="blob-code blob-code-inner js-file-line">  <span class="pl-c"><span class="pl-c">--</span> 6b Input Function (Reference: Figure 10)</span></td>
-      </tr>
-      <tr>
-        <td id="L82" class="blob-num js-line-number" data-line-number="82"></td>
-        <td id="LC82" class="blob-code blob-code-inner js-file-line">  <span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L83" class="blob-num js-line-number" data-line-number="83"></td>
-        <td id="LC83" class="blob-code blob-code-inner js-file-line">  </td>
-      </tr>
-      <tr>
-        <td id="L84" class="blob-num js-line-number" data-line-number="84"></td>
-        <td id="LC84" class="blob-code blob-code-inner js-file-line">  <span class="pl-c"><span class="pl-c">--</span> One 1 and three 0&#39;s</span></td>
-      </tr>
-      <tr>
-        <td id="L85" class="blob-num js-line-number" data-line-number="85"></td>
-        <td id="LC85" class="blob-code blob-code-inner js-file-line">  P13 <span class="pl-k">&lt;=</span>     (ANEB <span class="pl-k">and</span> (<span class="pl-k">not</span> CI <span class="pl-k">and</span> <span class="pl-k">not</span> DI))</td>
-      </tr>
-      <tr>
-        <td id="L86" class="blob-num js-line-number" data-line-number="86"></td>
-        <td id="LC86" class="blob-code blob-code-inner js-file-line">                  <span class="pl-k">or</span> (CNED <span class="pl-k">and</span> (<span class="pl-k">not</span> AI <span class="pl-k">and</span> <span class="pl-k">not</span> BI)) ;</td>
-      </tr>
-      <tr>
-        <td id="L87" class="blob-num js-line-number" data-line-number="87"></td>
-        <td id="LC87" class="blob-code blob-code-inner js-file-line">  <span class="pl-c"><span class="pl-c">--</span> Three 1&#39;s and one 0         </span></td>
-      </tr>
-      <tr>
-        <td id="L88" class="blob-num js-line-number" data-line-number="88"></td>
-        <td id="LC88" class="blob-code blob-code-inner js-file-line">  P31 <span class="pl-k">&lt;=</span>     (ANEB <span class="pl-k">and</span> CI <span class="pl-k">and</span> DI)</td>
-      </tr>
-      <tr>
-        <td id="L89" class="blob-num js-line-number" data-line-number="89"></td>
-        <td id="LC89" class="blob-code blob-code-inner js-file-line">                  <span class="pl-k">or</span> (CNED <span class="pl-k">and</span> AI <span class="pl-k">and</span> BI) ;</td>
-      </tr>
-      <tr>
-        <td id="L90" class="blob-num js-line-number" data-line-number="90"></td>
-        <td id="LC90" class="blob-code blob-code-inner js-file-line">  <span class="pl-c"><span class="pl-c">--</span> Two 1&#39;s and two 0&#39;s</span></td>
-      </tr>
-      <tr>
-        <td id="L91" class="blob-num js-line-number" data-line-number="91"></td>
-        <td id="LC91" class="blob-code blob-code-inner js-file-line">  P22 <span class="pl-k">&lt;=</span>     (AI <span class="pl-k">and</span> BI <span class="pl-k">and</span> (<span class="pl-k">not</span> CI <span class="pl-k">and</span> <span class="pl-k">not</span> DI))</td>
-      </tr>
-      <tr>
-        <td id="L92" class="blob-num js-line-number" data-line-number="92"></td>
-        <td id="LC92" class="blob-code blob-code-inner js-file-line">                  <span class="pl-k">or</span> (CI <span class="pl-k">and</span> DI <span class="pl-k">and</span> (<span class="pl-k">not</span> AI <span class="pl-k">and</span> <span class="pl-k">not</span> BI))</td>
-      </tr>
-      <tr>
-        <td id="L93" class="blob-num js-line-number" data-line-number="93"></td>
-        <td id="LC93" class="blob-code blob-code-inner js-file-line">                  <span class="pl-k">or</span> (ANEB <span class="pl-k">and</span> CNED) ;</td>
-      </tr>
-      <tr>
-        <td id="L94" class="blob-num js-line-number" data-line-number="94"></td>
-        <td id="LC94" class="blob-code blob-code-inner js-file-line">                  </td>
-      </tr>
-      <tr>
-        <td id="L95" class="blob-num js-line-number" data-line-number="95"></td>
-        <td id="LC95" class="blob-code blob-code-inner js-file-line">  <span class="pl-c"><span class="pl-c">--</span> Intermediate term for &quot;AI is Not Equal to BI&quot;</span></td>
-      </tr>
-      <tr>
-        <td id="L96" class="blob-num js-line-number" data-line-number="96"></td>
-        <td id="LC96" class="blob-code blob-code-inner js-file-line">  ANEB <span class="pl-k">&lt;=</span>  AI <span class="pl-k">xor</span>  BI ;</td>
-      </tr>
-      <tr>
-        <td id="L97" class="blob-num js-line-number" data-line-number="97"></td>
-        <td id="LC97" class="blob-code blob-code-inner js-file-line">  </td>
-      </tr>
-      <tr>
-        <td id="L98" class="blob-num js-line-number" data-line-number="98"></td>
-        <td id="LC98" class="blob-code blob-code-inner js-file-line">  <span class="pl-c"><span class="pl-c">--</span> Intermediate term for &quot;CI is Not Equal to DI&quot;</span></td>
-      </tr>
-      <tr>
-        <td id="L99" class="blob-num js-line-number" data-line-number="99"></td>
-        <td id="LC99" class="blob-code blob-code-inner js-file-line">  CNED <span class="pl-k">&lt;=</span>  CI <span class="pl-k">xor</span>  DI ;</td>
-      </tr>
-      <tr>
-        <td id="L100" class="blob-num js-line-number" data-line-number="100"></td>
-        <td id="LC100" class="blob-code blob-code-inner js-file-line"> </td>
-      </tr>
-      <tr>
-        <td id="L101" class="blob-num js-line-number" data-line-number="101"></td>
-        <td id="LC101" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span> Intermediate term for &quot;E is Equal to I&quot;</span></td>
-      </tr>
-      <tr>
-        <td id="L102" class="blob-num js-line-number" data-line-number="102"></td>
-        <td id="LC102" class="blob-code blob-code-inner js-file-line"> EEI <span class="pl-k">&lt;=</span> EI <span class="pl-k">xnor</span> II ;</td>
-      </tr>
-      <tr>
-        <td id="L103" class="blob-num js-line-number" data-line-number="103"></td>
-        <td id="LC103" class="blob-code blob-code-inner js-file-line"> </td>
-      </tr>
-      <tr>
-        <td id="L104" class="blob-num js-line-number" data-line-number="104"></td>
-        <td id="LC104" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L105" class="blob-num js-line-number" data-line-number="105"></td>
-        <td id="LC105" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span> K Decoder - Figure 11</span></td>
-      </tr>
-      <tr>
-        <td id="L106" class="blob-num js-line-number" data-line-number="106"></td>
-        <td id="LC106" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L107" class="blob-num js-line-number" data-line-number="107"></td>
-        <td id="LC107" class="blob-code blob-code-inner js-file-line"> </td>
-      </tr>
-      <tr>
-        <td id="L108" class="blob-num js-line-number" data-line-number="108"></td>
-        <td id="LC108" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span> Intermediate terms</span></td>
-      </tr>
-      <tr>
-        <td id="L109" class="blob-num js-line-number" data-line-number="109"></td>
-        <td id="LC109" class="blob-code blob-code-inner js-file-line"> IKA     <span class="pl-k">&lt;=</span> (CI <span class="pl-k">and</span> DI <span class="pl-k">and</span> EI <span class="pl-k">and</span> II)</td>
-      </tr>
-      <tr>
-        <td id="L110" class="blob-num js-line-number" data-line-number="110"></td>
-        <td id="LC110" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (<span class="pl-k">not</span> CI <span class="pl-k">and</span> <span class="pl-k">not</span> DI <span class="pl-k">and</span> <span class="pl-k">not</span> EI <span class="pl-k">and</span> <span class="pl-k">not</span> II) ;</td>
-      </tr>
-      <tr>
-        <td id="L111" class="blob-num js-line-number" data-line-number="111"></td>
-        <td id="LC111" class="blob-code blob-code-inner js-file-line"> IKB <span class="pl-k">&lt;=</span> P13 <span class="pl-k">and</span> (<span class="pl-k">not</span> EI <span class="pl-k">and</span> II <span class="pl-k">and</span> GI <span class="pl-k">and</span> HI <span class="pl-k">and</span> JI) ;</td>
-      </tr>
-      <tr>
-        <td id="L112" class="blob-num js-line-number" data-line-number="112"></td>
-        <td id="LC112" class="blob-code blob-code-inner js-file-line"> IKC <span class="pl-k">&lt;=</span> P31 <span class="pl-k">and</span> (EI <span class="pl-k">and</span> <span class="pl-k">not</span> II <span class="pl-k">and</span> <span class="pl-k">not</span> GI <span class="pl-k">and</span> <span class="pl-k">not</span> HI <span class="pl-k">and</span> <span class="pl-k">not</span> JI) ;</td>
-      </tr>
-      <tr>
-        <td id="L113" class="blob-num js-line-number" data-line-number="113"></td>
-        <td id="LC113" class="blob-code blob-code-inner js-file-line"> </td>
-      </tr>
-      <tr>
-        <td id="L114" class="blob-num js-line-number" data-line-number="114"></td>
-        <td id="LC114" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span> PROCESS: KFN; Determine K output</span></td>
-      </tr>
-      <tr>
-        <td id="L115" class="blob-num js-line-number" data-line-number="115"></td>
-        <td id="LC115" class="blob-code blob-code-inner js-file-line"> <span class="pl-en">KFN</span>: <span class="pl-k">process</span> (RESET, RBYTECLK, IKA, IKB, IKC)</td>
-      </tr>
-      <tr>
-        <td id="L116" class="blob-num js-line-number" data-line-number="116"></td>
-        <td id="LC116" class="blob-code blob-code-inner js-file-line"> <span class="pl-k">begin</span></td>
-      </tr>
-      <tr>
-        <td id="L117" class="blob-num js-line-number" data-line-number="117"></td>
-        <td id="LC117" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">if</span> RESET <span class="pl-k">=</span> <span class="pl-c1">&#39;1&#39;</span> <span class="pl-k">then</span></td>
-      </tr>
-      <tr>
-        <td id="L118" class="blob-num js-line-number" data-line-number="118"></td>
-        <td id="LC118" class="blob-code blob-code-inner js-file-line">                 KO <span class="pl-k">&lt;=</span> <span class="pl-c1">&#39;0&#39;</span>;</td>
-      </tr>
-      <tr>
-        <td id="L119" class="blob-num js-line-number" data-line-number="119"></td>
-        <td id="LC119" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">elsif</span> RBYTECLK<span class="pl-k">&#39;event</span> <span class="pl-k">and</span> RBYTECLK <span class="pl-k">=</span> <span class="pl-c1">&#39;0&#39;</span> <span class="pl-k">then</span></td>
-      </tr>
-      <tr>
-        <td id="L120" class="blob-num js-line-number" data-line-number="120"></td>
-        <td id="LC120" class="blob-code blob-code-inner js-file-line">                 KO <span class="pl-k">&lt;=</span> IKA <span class="pl-k">or</span> IKB <span class="pl-k">or</span> IKC;</td>
-      </tr>
-      <tr>
-        <td id="L121" class="blob-num js-line-number" data-line-number="121"></td>
-        <td id="LC121" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">end</span> <span class="pl-k">if</span>;</td>
-      </tr>
-      <tr>
-        <td id="L122" class="blob-num js-line-number" data-line-number="122"></td>
-        <td id="LC122" class="blob-code blob-code-inner js-file-line"> <span class="pl-k">end</span> <span class="pl-k">process</span> <span class="pl-en">KFN</span>;</td>
-      </tr>
-      <tr>
-        <td id="L123" class="blob-num js-line-number" data-line-number="123"></td>
-        <td id="LC123" class="blob-code blob-code-inner js-file-line"> </td>
-      </tr>
-      <tr>
-        <td id="L124" class="blob-num js-line-number" data-line-number="124"></td>
-        <td id="LC124" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L125" class="blob-num js-line-number" data-line-number="125"></td>
-        <td id="LC125" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span> 5b Decoder Figure 12</span></td>
-      </tr>
-      <tr>
-        <td id="L126" class="blob-num js-line-number" data-line-number="126"></td>
-        <td id="LC126" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L127" class="blob-num js-line-number" data-line-number="127"></td>
-        <td id="LC127" class="blob-code blob-code-inner js-file-line"> </td>
-      </tr>
-      <tr>
-        <td id="L128" class="blob-num js-line-number" data-line-number="128"></td>
-        <td id="LC128" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span> Logic to determine complimenting A,B,C,D,E,I inputs</span></td>
-      </tr>
-      <tr>
-        <td id="L129" class="blob-num js-line-number" data-line-number="129"></td>
-        <td id="LC129" class="blob-code blob-code-inner js-file-line"> OR121 <span class="pl-k">&lt;=</span> (P22 <span class="pl-k">and</span> (<span class="pl-k">not</span> AI <span class="pl-k">and</span> <span class="pl-k">not</span> CI <span class="pl-k">and</span> EEI))</td>
-      </tr>
-      <tr>
-        <td id="L130" class="blob-num js-line-number" data-line-number="130"></td>
-        <td id="LC130" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (P13 <span class="pl-k">and</span> <span class="pl-k">not</span> EI) ;</td>
-      </tr>
-      <tr>
-        <td id="L131" class="blob-num js-line-number" data-line-number="131"></td>
-        <td id="LC131" class="blob-code blob-code-inner js-file-line"> OR122 <span class="pl-k">&lt;=</span> (AI <span class="pl-k">and</span> BI <span class="pl-k">and</span> EI <span class="pl-k">and</span> II)</td>
-      </tr>
-      <tr>
-        <td id="L132" class="blob-num js-line-number" data-line-number="132"></td>
-        <td id="LC132" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (<span class="pl-k">not</span> CI <span class="pl-k">and</span> <span class="pl-k">not</span> DI <span class="pl-k">and</span> <span class="pl-k">not</span> EI <span class="pl-k">and</span> <span class="pl-k">not</span> II)</td>
-      </tr>
-      <tr>
-        <td id="L133" class="blob-num js-line-number" data-line-number="133"></td>
-        <td id="LC133" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (P31 <span class="pl-k">and</span> II) ;</td>
-      </tr>
-      <tr>
-        <td id="L134" class="blob-num js-line-number" data-line-number="134"></td>
-        <td id="LC134" class="blob-code blob-code-inner js-file-line"> OR123 <span class="pl-k">&lt;=</span> (P31 <span class="pl-k">and</span> II)</td>
-      </tr>
-      <tr>
-        <td id="L135" class="blob-num js-line-number" data-line-number="135"></td>
-        <td id="LC135" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (P22 <span class="pl-k">and</span> BI <span class="pl-k">and</span> CI <span class="pl-k">and</span> EEI)</td>
-      </tr>
-      <tr>
-        <td id="L136" class="blob-num js-line-number" data-line-number="136"></td>
-        <td id="LC136" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (P13 <span class="pl-k">and</span> DI <span class="pl-k">and</span> EI <span class="pl-k">and</span> II) ;</td>
-      </tr>
-      <tr>
-        <td id="L137" class="blob-num js-line-number" data-line-number="137"></td>
-        <td id="LC137" class="blob-code blob-code-inner js-file-line"> OR124 <span class="pl-k">&lt;=</span> (P22 <span class="pl-k">and</span> AI <span class="pl-k">and</span> CI <span class="pl-k">and</span> EEI)</td>
-      </tr>
-      <tr>
-        <td id="L138" class="blob-num js-line-number" data-line-number="138"></td>
-        <td id="LC138" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (P13 <span class="pl-k">and</span> <span class="pl-k">not</span> EI) ;</td>
-      </tr>
-      <tr>
-        <td id="L139" class="blob-num js-line-number" data-line-number="139"></td>
-        <td id="LC139" class="blob-code blob-code-inner js-file-line"> OR125 <span class="pl-k">&lt;=</span> (P13 <span class="pl-k">and</span> <span class="pl-k">not</span> EI)</td>
-      </tr>
-      <tr>
-        <td id="L140" class="blob-num js-line-number" data-line-number="140"></td>
-        <td id="LC140" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (<span class="pl-k">not</span> CI <span class="pl-k">and</span> <span class="pl-k">not</span> DI <span class="pl-k">and</span> <span class="pl-k">not</span> EI <span class="pl-k">and</span> <span class="pl-k">not</span> II)</td>
-      </tr>
-      <tr>
-        <td id="L141" class="blob-num js-line-number" data-line-number="141"></td>
-        <td id="LC141" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (<span class="pl-k">not</span> AI <span class="pl-k">and</span> <span class="pl-k">not</span> BI <span class="pl-k">and</span> <span class="pl-k">not</span> EI <span class="pl-k">and</span> <span class="pl-k">not</span> II) ;</td>
-      </tr>
-      <tr>
-        <td id="L142" class="blob-num js-line-number" data-line-number="142"></td>
-        <td id="LC142" class="blob-code blob-code-inner js-file-line"> OR126 <span class="pl-k">&lt;=</span> (P22 <span class="pl-k">and</span> <span class="pl-k">not</span> AI <span class="pl-k">and</span> <span class="pl-k">not</span> CI <span class="pl-k">and</span> EEI)</td>
-      </tr>
-      <tr>
-        <td id="L143" class="blob-num js-line-number" data-line-number="143"></td>
-        <td id="LC143" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (P13 <span class="pl-k">and</span> <span class="pl-k">not</span> II) ;</td>
-      </tr>
-      <tr>
-        <td id="L144" class="blob-num js-line-number" data-line-number="144"></td>
-        <td id="LC144" class="blob-code blob-code-inner js-file-line"> OR127 <span class="pl-k">&lt;=</span> (P13 <span class="pl-k">and</span> DI <span class="pl-k">and</span> EI <span class="pl-k">and</span> II)</td>
-      </tr>
-      <tr>
-        <td id="L145" class="blob-num js-line-number" data-line-number="145"></td>
-        <td id="LC145" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (P22 <span class="pl-k">and</span> <span class="pl-k">not</span> BI <span class="pl-k">and</span> <span class="pl-k">not</span> CI <span class="pl-k">and</span> EEI) ;</td>
-      </tr>
-      <tr>
-        <td id="L146" class="blob-num js-line-number" data-line-number="146"></td>
-        <td id="LC146" class="blob-code blob-code-inner js-file-line"> </td>
-      </tr>
-      <tr>
-        <td id="L147" class="blob-num js-line-number" data-line-number="147"></td>
-        <td id="LC147" class="blob-code blob-code-inner js-file-line"> XA <span class="pl-k">&lt;=</span> OR127</td>
-      </tr>
-      <tr>
-        <td id="L148" class="blob-num js-line-number" data-line-number="148"></td>
-        <td id="LC148" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> OR121</td>
-      </tr>
-      <tr>
-        <td id="L149" class="blob-num js-line-number" data-line-number="149"></td>
-        <td id="LC149" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> OR122 ;</td>
-      </tr>
-      <tr>
-        <td id="L150" class="blob-num js-line-number" data-line-number="150"></td>
-        <td id="LC150" class="blob-code blob-code-inner js-file-line"> XB <span class="pl-k">&lt;=</span> OR122</td>
-      </tr>
-      <tr>
-        <td id="L151" class="blob-num js-line-number" data-line-number="151"></td>
-        <td id="LC151" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> OR123</td>
-      </tr>
-      <tr>
-        <td id="L152" class="blob-num js-line-number" data-line-number="152"></td>
-        <td id="LC152" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> OR124 ;</td>
-      </tr>
-      <tr>
-        <td id="L153" class="blob-num js-line-number" data-line-number="153"></td>
-        <td id="LC153" class="blob-code blob-code-inner js-file-line"> XC <span class="pl-k">&lt;=</span> OR121</td>
-      </tr>
-      <tr>
-        <td id="L154" class="blob-num js-line-number" data-line-number="154"></td>
-        <td id="LC154" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> OR123</td>
-      </tr>
-      <tr>
-        <td id="L155" class="blob-num js-line-number" data-line-number="155"></td>
-        <td id="LC155" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> OR125 ;</td>
-      </tr>
-      <tr>
-        <td id="L156" class="blob-num js-line-number" data-line-number="156"></td>
-        <td id="LC156" class="blob-code blob-code-inner js-file-line"> XD <span class="pl-k">&lt;=</span> OR122</td>
-      </tr>
-      <tr>
-        <td id="L157" class="blob-num js-line-number" data-line-number="157"></td>
-        <td id="LC157" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> OR124</td>
-      </tr>
-      <tr>
-        <td id="L158" class="blob-num js-line-number" data-line-number="158"></td>
-        <td id="LC158" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> OR127 ;</td>
-      </tr>
-      <tr>
-        <td id="L159" class="blob-num js-line-number" data-line-number="159"></td>
-        <td id="LC159" class="blob-code blob-code-inner js-file-line"> XE <span class="pl-k">&lt;=</span> OR125</td>
-      </tr>
-      <tr>
-        <td id="L160" class="blob-num js-line-number" data-line-number="160"></td>
-        <td id="LC160" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> OR126</td>
-      </tr>
-      <tr>
-        <td id="L161" class="blob-num js-line-number" data-line-number="161"></td>
-        <td id="LC161" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> OR127 ; </td>
-      </tr>
-      <tr>
-        <td id="L162" class="blob-num js-line-number" data-line-number="162"></td>
-        <td id="LC162" class="blob-code blob-code-inner js-file-line"> </td>
-      </tr>
-      <tr>
-        <td id="L163" class="blob-num js-line-number" data-line-number="163"></td>
-        <td id="LC163" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span> PROCESS: DEC5B; Generate and latch LS 5 decoded bits</span></td>
-      </tr>
-      <tr>
-        <td id="L164" class="blob-num js-line-number" data-line-number="164"></td>
-        <td id="LC164" class="blob-code blob-code-inner js-file-line"> <span class="pl-en">DEC5B</span>: <span class="pl-k">process</span> (RESET, RBYTECLK, XA, XB, XC, XD, XE, AI, BI, CI, DI, EI)</td>
-      </tr>
-      <tr>
-        <td id="L165" class="blob-num js-line-number" data-line-number="165"></td>
-        <td id="LC165" class="blob-code blob-code-inner js-file-line"> <span class="pl-k">begin</span></td>
-      </tr>
-      <tr>
-        <td id="L166" class="blob-num js-line-number" data-line-number="166"></td>
-        <td id="LC166" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">if</span> RESET <span class="pl-k">=</span> <span class="pl-c1">&#39;1&#39;</span> <span class="pl-k">then</span></td>
-      </tr>
-      <tr>
-        <td id="L167" class="blob-num js-line-number" data-line-number="167"></td>
-        <td id="LC167" class="blob-code blob-code-inner js-file-line">                 AO <span class="pl-k">&lt;=</span> <span class="pl-c1">&#39;0&#39;</span> ;</td>
-      </tr>
-      <tr>
-        <td id="L168" class="blob-num js-line-number" data-line-number="168"></td>
-        <td id="LC168" class="blob-code blob-code-inner js-file-line">                 BO <span class="pl-k">&lt;=</span> <span class="pl-c1">&#39;0&#39;</span> ;</td>
-      </tr>
-      <tr>
-        <td id="L169" class="blob-num js-line-number" data-line-number="169"></td>
-        <td id="LC169" class="blob-code blob-code-inner js-file-line">                 CO <span class="pl-k">&lt;=</span> <span class="pl-c1">&#39;0&#39;</span> ;</td>
-      </tr>
-      <tr>
-        <td id="L170" class="blob-num js-line-number" data-line-number="170"></td>
-        <td id="LC170" class="blob-code blob-code-inner js-file-line">                 DO <span class="pl-k">&lt;=</span> <span class="pl-c1">&#39;0&#39;</span> ;</td>
-      </tr>
-      <tr>
-        <td id="L171" class="blob-num js-line-number" data-line-number="171"></td>
-        <td id="LC171" class="blob-code blob-code-inner js-file-line">                 EO <span class="pl-k">&lt;=</span> <span class="pl-c1">&#39;0&#39;</span> ;</td>
-      </tr>
-      <tr>
-        <td id="L172" class="blob-num js-line-number" data-line-number="172"></td>
-        <td id="LC172" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">elsif</span> RBYTECLK<span class="pl-k">&#39;event</span> <span class="pl-k">and</span> RBYTECLK <span class="pl-k">=</span> <span class="pl-c1">&#39;0&#39;</span> <span class="pl-k">then</span></td>
-      </tr>
-      <tr>
-        <td id="L173" class="blob-num js-line-number" data-line-number="173"></td>
-        <td id="LC173" class="blob-code blob-code-inner js-file-line">                 AO <span class="pl-k">&lt;=</span> XA <span class="pl-k">XOR</span> AI ;        <span class="pl-c"><span class="pl-c">--</span> Least significant bit 0</span></td>
-      </tr>
-      <tr>
-        <td id="L174" class="blob-num js-line-number" data-line-number="174"></td>
-        <td id="LC174" class="blob-code blob-code-inner js-file-line">                 BO <span class="pl-k">&lt;=</span> XB <span class="pl-k">XOR</span> BI ;</td>
-      </tr>
-      <tr>
-        <td id="L175" class="blob-num js-line-number" data-line-number="175"></td>
-        <td id="LC175" class="blob-code blob-code-inner js-file-line">                 CO <span class="pl-k">&lt;=</span> XC <span class="pl-k">XOR</span> CI ;</td>
-      </tr>
-      <tr>
-        <td id="L176" class="blob-num js-line-number" data-line-number="176"></td>
-        <td id="LC176" class="blob-code blob-code-inner js-file-line">                 DO <span class="pl-k">&lt;=</span> XD <span class="pl-k">XOR</span> DI ;</td>
-      </tr>
-      <tr>
-        <td id="L177" class="blob-num js-line-number" data-line-number="177"></td>
-        <td id="LC177" class="blob-code blob-code-inner js-file-line">                 EO <span class="pl-k">&lt;=</span> XE <span class="pl-k">XOR</span> EI ;        <span class="pl-c"><span class="pl-c">--</span> Most significant bit 6</span></td>
-      </tr>
-      <tr>
-        <td id="L178" class="blob-num js-line-number" data-line-number="178"></td>
-        <td id="LC178" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">end</span> <span class="pl-k">if</span>;</td>
-      </tr>
-      <tr>
-        <td id="L179" class="blob-num js-line-number" data-line-number="179"></td>
-        <td id="LC179" class="blob-code blob-code-inner js-file-line"> <span class="pl-k">end</span> <span class="pl-k">process</span> <span class="pl-en">DEC5B</span>;</td>
-      </tr>
-      <tr>
-        <td id="L180" class="blob-num js-line-number" data-line-number="180"></td>
-        <td id="LC180" class="blob-code blob-code-inner js-file-line"> </td>
-      </tr>
-      <tr>
-        <td id="L181" class="blob-num js-line-number" data-line-number="181"></td>
-        <td id="LC181" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L182" class="blob-num js-line-number" data-line-number="182"></td>
-        <td id="LC182" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span> 3b Decoder - Figure 13</span></td>
-      </tr>
-      <tr>
-        <td id="L183" class="blob-num js-line-number" data-line-number="183"></td>
-        <td id="LC183" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span></span></td>
-      </tr>
-      <tr>
-        <td id="L184" class="blob-num js-line-number" data-line-number="184"></td>
-        <td id="LC184" class="blob-code blob-code-inner js-file-line"> </td>
-      </tr>
-      <tr>
-        <td id="L185" class="blob-num js-line-number" data-line-number="185"></td>
-        <td id="LC185" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span> Logic for complimenting F,G,H outputs</span></td>
-      </tr>
-      <tr>
-        <td id="L186" class="blob-num js-line-number" data-line-number="186"></td>
-        <td id="LC186" class="blob-code blob-code-inner js-file-line"> OR131 <span class="pl-k">&lt;=</span> (GI <span class="pl-k">and</span> HI <span class="pl-k">and</span> JI)</td>
-      </tr>
-      <tr>
-        <td id="L187" class="blob-num js-line-number" data-line-number="187"></td>
-        <td id="LC187" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (FI <span class="pl-k">and</span> HI <span class="pl-k">and</span> JI) </td>
-      </tr>
-      <tr>
-        <td id="L188" class="blob-num js-line-number" data-line-number="188"></td>
-        <td id="LC188" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (IOR134);</td>
-      </tr>
-      <tr>
-        <td id="L189" class="blob-num js-line-number" data-line-number="189"></td>
-        <td id="LC189" class="blob-code blob-code-inner js-file-line"> OR132 <span class="pl-k">&lt;=</span> (FI <span class="pl-k">and</span> GI <span class="pl-k">and</span> JI)</td>
-      </tr>
-      <tr>
-        <td id="L190" class="blob-num js-line-number" data-line-number="190"></td>
-        <td id="LC190" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (<span class="pl-k">not</span> FI <span class="pl-k">and</span> <span class="pl-k">not</span> GI <span class="pl-k">and</span> <span class="pl-k">not</span> HI)</td>
-      </tr>
-      <tr>
-        <td id="L191" class="blob-num js-line-number" data-line-number="191"></td>
-        <td id="LC191" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (<span class="pl-k">not</span> FI <span class="pl-k">and</span> <span class="pl-k">not</span> GI <span class="pl-k">and</span> HI <span class="pl-k">and</span> JI);</td>
-      </tr>
-      <tr>
-        <td id="L192" class="blob-num js-line-number" data-line-number="192"></td>
-        <td id="LC192" class="blob-code blob-code-inner js-file-line"> OR133 <span class="pl-k">&lt;=</span> (<span class="pl-k">not</span> FI <span class="pl-k">and</span> <span class="pl-k">not</span> HI <span class="pl-k">and</span> <span class="pl-k">not</span> JI)</td>
-      </tr>
-      <tr>
-        <td id="L193" class="blob-num js-line-number" data-line-number="193"></td>
-        <td id="LC193" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (IOR134)</td>
-      </tr>
-      <tr>
-        <td id="L194" class="blob-num js-line-number" data-line-number="194"></td>
-        <td id="LC194" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (<span class="pl-k">not</span> GI <span class="pl-k">and</span> <span class="pl-k">not</span> HI <span class="pl-k">and</span> <span class="pl-k">not</span> JI) ;</td>
-      </tr>
-      <tr>
-        <td id="L195" class="blob-num js-line-number" data-line-number="195"></td>
-        <td id="LC195" class="blob-code blob-code-inner js-file-line"> OR134 <span class="pl-k">&lt;=</span> (<span class="pl-k">not</span> GI <span class="pl-k">and</span> <span class="pl-k">not</span> HI <span class="pl-k">and</span> <span class="pl-k">not</span> JI)</td>
-      </tr>
-      <tr>
-        <td id="L196" class="blob-num js-line-number" data-line-number="196"></td>
-        <td id="LC196" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (FI <span class="pl-k">and</span> HI <span class="pl-k">and</span> JI)</td>
-      </tr>
-      <tr>
-        <td id="L197" class="blob-num js-line-number" data-line-number="197"></td>
-        <td id="LC197" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> (IOR134) ;</td>
-      </tr>
-      <tr>
-        <td id="L198" class="blob-num js-line-number" data-line-number="198"></td>
-        <td id="LC198" class="blob-code blob-code-inner js-file-line"> IOR134 <span class="pl-k">&lt;=</span> (<span class="pl-k">not</span> (HI <span class="pl-k">and</span> JI))</td>
-      </tr>
-      <tr>
-        <td id="L199" class="blob-num js-line-number" data-line-number="199"></td>
-        <td id="LC199" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">and</span> (<span class="pl-k">not</span> (<span class="pl-k">not</span> HI <span class="pl-k">and</span> <span class="pl-k">not</span> JI))</td>
-      </tr>
-      <tr>
-        <td id="L200" class="blob-num js-line-number" data-line-number="200"></td>
-        <td id="LC200" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">and</span> (<span class="pl-k">not</span> CI <span class="pl-k">and</span> <span class="pl-k">not</span> DI <span class="pl-k">and</span> <span class="pl-k">not</span> EI <span class="pl-k">and</span> <span class="pl-k">not</span> II) ;</td>
-      </tr>
-      <tr>
-        <td id="L201" class="blob-num js-line-number" data-line-number="201"></td>
-        <td id="LC201" class="blob-code blob-code-inner js-file-line"> </td>
-      </tr>
-      <tr>
-        <td id="L202" class="blob-num js-line-number" data-line-number="202"></td>
-        <td id="LC202" class="blob-code blob-code-inner js-file-line"> XF <span class="pl-k">&lt;=</span> OR131</td>
-      </tr>
-      <tr>
-        <td id="L203" class="blob-num js-line-number" data-line-number="203"></td>
-        <td id="LC203" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> OR132 ;</td>
-      </tr>
-      <tr>
-        <td id="L204" class="blob-num js-line-number" data-line-number="204"></td>
-        <td id="LC204" class="blob-code blob-code-inner js-file-line"> XG <span class="pl-k">&lt;=</span> OR132 </td>
-      </tr>
-      <tr>
-        <td id="L205" class="blob-num js-line-number" data-line-number="205"></td>
-        <td id="LC205" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> OR133 ;</td>
-      </tr>
-      <tr>
-        <td id="L206" class="blob-num js-line-number" data-line-number="206"></td>
-        <td id="LC206" class="blob-code blob-code-inner js-file-line"> XH <span class="pl-k">&lt;=</span> OR132</td>
-      </tr>
-      <tr>
-        <td id="L207" class="blob-num js-line-number" data-line-number="207"></td>
-        <td id="LC207" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">or</span> OR134 ;</td>
-      </tr>
-      <tr>
-        <td id="L208" class="blob-num js-line-number" data-line-number="208"></td>
-        <td id="LC208" class="blob-code blob-code-inner js-file-line"> </td>
-      </tr>
-      <tr>
-        <td id="L209" class="blob-num js-line-number" data-line-number="209"></td>
-        <td id="LC209" class="blob-code blob-code-inner js-file-line"> <span class="pl-c"><span class="pl-c">--</span> PROCESS: DEC3B; Generate and latch MS 3 decoded bits</span></td>
-      </tr>
-      <tr>
-        <td id="L210" class="blob-num js-line-number" data-line-number="210"></td>
-        <td id="LC210" class="blob-code blob-code-inner js-file-line"> <span class="pl-en">DEC3B</span>: <span class="pl-k">process</span> (RESET, RBYTECLK, XF, XG, XH, FI, GI, HI)</td>
-      </tr>
-      <tr>
-        <td id="L211" class="blob-num js-line-number" data-line-number="211"></td>
-        <td id="LC211" class="blob-code blob-code-inner js-file-line"> <span class="pl-k">begin</span></td>
-      </tr>
-      <tr>
-        <td id="L212" class="blob-num js-line-number" data-line-number="212"></td>
-        <td id="LC212" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">if</span> RESET <span class="pl-k">=</span> <span class="pl-c1">&#39;1&#39;</span> <span class="pl-k">then</span></td>
-      </tr>
-      <tr>
-        <td id="L213" class="blob-num js-line-number" data-line-number="213"></td>
-        <td id="LC213" class="blob-code blob-code-inner js-file-line">                 FO <span class="pl-k">&lt;=</span> <span class="pl-c1">&#39;0&#39;</span> ;</td>
-      </tr>
-      <tr>
-        <td id="L214" class="blob-num js-line-number" data-line-number="214"></td>
-        <td id="LC214" class="blob-code blob-code-inner js-file-line">                 GO <span class="pl-k">&lt;=</span> <span class="pl-c1">&#39;0&#39;</span> ;</td>
-      </tr>
-      <tr>
-        <td id="L215" class="blob-num js-line-number" data-line-number="215"></td>
-        <td id="LC215" class="blob-code blob-code-inner js-file-line">                 HO <span class="pl-k">&lt;=</span> <span class="pl-c1">&#39;0&#39;</span> ;</td>
-      </tr>
-      <tr>
-        <td id="L216" class="blob-num js-line-number" data-line-number="216"></td>
-        <td id="LC216" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">elsif</span> RBYTECLK<span class="pl-k">&#39;event</span> <span class="pl-k">and</span> RBYTECLK <span class="pl-k">=</span><span class="pl-c1">&#39;0&#39;</span> <span class="pl-k">then</span></td>
-      </tr>
-      <tr>
-        <td id="L217" class="blob-num js-line-number" data-line-number="217"></td>
-        <td id="LC217" class="blob-code blob-code-inner js-file-line">                 FO <span class="pl-k">&lt;=</span> XF <span class="pl-k">XOR</span> FI ;        <span class="pl-c"><span class="pl-c">--</span> Least significant bit 7</span></td>
-      </tr>
-      <tr>
-        <td id="L218" class="blob-num js-line-number" data-line-number="218"></td>
-        <td id="LC218" class="blob-code blob-code-inner js-file-line">                 GO <span class="pl-k">&lt;=</span> XG <span class="pl-k">XOR</span> GI ;</td>
-      </tr>
-      <tr>
-        <td id="L219" class="blob-num js-line-number" data-line-number="219"></td>
-        <td id="LC219" class="blob-code blob-code-inner js-file-line">                 HO <span class="pl-k">&lt;=</span> XH <span class="pl-k">XOR</span> HI ;        <span class="pl-c"><span class="pl-c">--</span> Most significant bit 10</span></td>
-      </tr>
-      <tr>
-        <td id="L220" class="blob-num js-line-number" data-line-number="220"></td>
-        <td id="LC220" class="blob-code blob-code-inner js-file-line">         <span class="pl-k">end</span> <span class="pl-k">if</span>;</td>
-      </tr>
-      <tr>
-        <td id="L221" class="blob-num js-line-number" data-line-number="221"></td>
-        <td id="LC221" class="blob-code blob-code-inner js-file-line"> <span class="pl-k">end</span> <span class="pl-k">process</span> <span class="pl-en">DEC3B</span> ;</td>
-      </tr>
-      <tr>
-        <td id="L222" class="blob-num js-line-number" data-line-number="222"></td>
-        <td id="LC222" class="blob-code blob-code-inner js-file-line">                         </td>
-      </tr>
-      <tr>
-        <td id="L223" class="blob-num js-line-number" data-line-number="223"></td>
-        <td id="LC223" class="blob-code blob-code-inner js-file-line"><span class="pl-k">end</span> <span class="pl-en">behavioral</span>;</td>
-      </tr>
-      <tr>
-        <td id="L224" class="blob-num js-line-number" data-line-number="224"></td>
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+       --
+       -- 6b Input Function (Reference: Figure 10)
+       --
+       
+       -- One 1 and three 0's
+       P13 <=  (ANEB and (not CI and not DI))
+                       or (CNED and (not AI and not BI)) ;
+       -- Three 1's and one 0          
+       P31 <=  (ANEB and CI and DI)
+                       or (CNED and AI and BI) ;
+       -- Two 1's and two 0's
+       P22 <=  (AI and BI and (not CI and not DI))
+                       or (CI and DI and (not AI and not BI))
+                       or (ANEB and CNED) ;
+                       
+       -- Intermediate term for "AI is Not Equal to BI"
+       ANEB <=  AI xor BI ;
+       
+       -- Intermediate term for "CI is Not Equal to DI"
+       CNED <=  CI xor DI ;
+       
+       -- Intermediate term for "E is Equal to I"
+       EEI <= EI xnor II ;
+       
+       --
+       -- K Decoder - Figure 11
+       --
+       
+       -- Intermediate terms
+       IKA     <= (CI and DI and EI and II)
+               or (not CI and not DI and not EI and not II) ;
+       IKB <= P13 and (not EI and II and GI and HI and JI) ;
+       IKC <= P31 and (EI and not II and not GI and not HI and not JI) ;
+       
+       -- PROCESS: KFN; Determine K output
+       KFN: process (RESET, RBYTECLK, IKA, IKB, IKC)
+       begin
+               if RESET = '1' then
+                       KO <= '0';
+               elsif RBYTECLK'event and RBYTECLK = '0' then
+                       KO <= IKA or IKB or IKC;
+               end if;
+       end process KFN;
+       
+       --
+       -- 5b Decoder Figure 12
+       --
+       
+       -- Logic to determine complimenting A,B,C,D,E,I inputs
+       OR121 <= (P22 and (not AI and not CI and EEI))
+               or (P13 and not EI) ;
+       OR122 <= (AI and BI and EI and II)
+               or (not CI and not DI and not EI and not II)
+               or (P31 and II) ;
+       OR123 <= (P31 and II)
+               or (P22 and BI and CI and EEI)
+               or (P13 and DI and EI and II) ;
+       OR124 <= (P22 and AI and CI and EEI)
+               or (P13 and not EI) ;
+       OR125 <= (P13 and not EI)
+               or (not CI and not DI and not EI and not II)
+               or (not AI and not BI and not EI and not II) ;
+       OR126 <= (P22 and not AI and not CI and EEI)
+               or (P13 and not II) ;
+       OR127 <= (P13 and DI and EI and II)
+               or (P22 and not BI and not CI and EEI) ;
+       
+       XA <= OR127
+               or OR121
+               or OR122 ;
+       XB <= OR122
+               or OR123
+               or OR124 ;
+       XC <= OR121
+               or OR123
+               or OR125 ;
+       XD <= OR122
+               or OR124
+               or OR127 ;
+       XE <= OR125
+               or OR126
+               or OR127 ; 
+       
+       -- PROCESS: DEC5B; Generate and latch LS 5 decoded bits
+       DEC5B: process (RESET, RBYTECLK, XA, XB, XC, XD, XE, AI, BI, CI, DI, EI)
+       begin
+               if RESET = '1' then
+                       AO <= '0' ;
+                       BO <= '0' ;
+                       CO <= '0' ;
+                       DO <= '0' ;
+                       EO <= '0' ;
+               elsif RBYTECLK'event and RBYTECLK = '0' then
+                       AO <= XA XOR AI ;       -- Least significant bit 0
+                       BO <= XB XOR BI ;
+                       CO <= XC XOR CI ;
+                       DO <= XD XOR DI ;
+                       EO <= XE XOR EI ;       -- Most significant bit 6
+               end if;
+       end process DEC5B;
+       
+       --
+       -- 3b Decoder - Figure 13
+       --
+       
+       -- Logic for complimenting F,G,H outputs
+       OR131 <= (GI and HI and JI)
+               or (FI and HI and JI) 
+               or (IOR134);
+       OR132 <= (FI and GI and JI)
+               or (not FI and not GI and not HI)
+               or (not FI and not GI and HI and JI);
+       OR133 <= (not FI and not HI and not JI)
+               or (IOR134)
+               or (not GI and not HI and not JI) ;
+       OR134 <= (not GI and not HI and not JI)
+               or (FI and HI and JI)
+               or (IOR134) ;
+       IOR134 <= (not (HI and JI))
+               and (not (not HI and not JI))
+               and (not CI and not DI and not EI and not II) ;
+       
+       XF <= OR131
+               or OR132 ;
+       XG <= OR132 
+               or OR133 ;
+       XH <= OR132
+               or OR134 ;
+       
+       -- PROCESS: DEC3B; Generate and latch MS 3 decoded bits
+       DEC3B: process (RESET, RBYTECLK, XF, XG, XH, FI, GI, HI)
+       begin
+               if RESET = '1' then
+                       FO <= '0' ;
+                       GO <= '0' ;
+                       HO <= '0' ;
+               elsif RBYTECLK'event and RBYTECLK ='0' then
+                       FO <= XF XOR FI ;       -- Least significant bit 7
+                       GO <= XG XOR GI ;
+                       HO <= XH XOR HI ;       -- Most significant bit 10
+               end if;
+       end process DEC3B ;
+                               
+end behavioral;
 
diff --git a/mupix/Mupix8/tb/MupixUnpackerTest.vhd b/mupix/Mupix8/tb/MupixUnpackerTest.vhd
new file mode 100644 (file)
index 0000000..fabb6e9
--- /dev/null
+++ b/mupix/Mupix8/tb/MupixUnpackerTest.vhd
@@ -0,0 +1,116 @@
+library IEEE;
+use IEEE.std_logic_1164.all;
+use IEEE.numeric_std.all;
+
+entity MupixUnpackerTest is
+end entity MupixUnpackerTest;
+
+architecture sim of MupixUnpackerTest is
+
+  component MupixUnpacker is
+    generic (
+      g_hitsize     : integer;
+      g_countersize : integer);
+    port (
+      clk               : in  std_logic;
+      reset             : in  std_logic;
+      reset_counter     : in  std_logic;
+      data_in           : in  std_logic_vector(7 downto 0);
+      komma             : in  std_logic;
+      valid             : in  std_logic;
+      hit_out           : out std_logic_vector(g_hitsize - 1 downto 0);
+      hit_enable        : out std_logic;
+      link_flag         : out std_logic;
+      errorcounter_gray : out std_logic_vector(31 downto 0);
+      errorcounter      : out std_logic_vector(31 downto 0));
+  end component MupixUnpacker;
+
+  component MupixStateMachine is
+    port (
+      clk      : in  std_logic;
+      reset    : in  std_logic;
+      words    : in  std_logic_vector(4 downto 0);
+      slowdown : in  std_logic_vector(15 downto 0);
+      wr_en    : out std_logic;
+      data_out : out std_logic_vector(9 downto 0));
+  end component MupixStateMachine;
+
+  component dec_8b10b is
+    port (
+      RESET    : in  std_logic;
+      RBYTECLK : in  std_logic;
+      input    : in  std_logic_vector(9 downto 0);
+      KO       : out std_logic;
+      output   : out std_logic_vector(7 downto 0));
+  end component dec_8b10b;
+
+  constant clock_period : time  := 10 ns;
+  
+  -- mupix unpacker
+  signal clk               : std_logic;
+  signal reset             : std_logic := '1';
+  signal reset_counter     : std_logic := '0';
+  signal data_in           : std_logic_vector(7 downto 0);
+  signal komma             : std_logic;
+  signal valid             : std_logic := '0';
+  signal hit_out           : std_logic_vector(39 downto 0);
+  signal hit_enable        : std_logic;
+  signal link_flag         : std_logic;
+  signal errorcounter_gray : std_logic_vector(31 downto 0);
+  signal errorcounter      : std_logic_vector(31 downto 0);
+
+  -- mupix state machine
+  signal words    : std_logic_vector(4 downto 0)  := "00100";
+  signal slowdown : std_logic_vector(15 downto 0) := x"000A";
+  signal wr_en : std_logic;
+  signal data_out : std_logic_vector(9 downto 0);
+
+
+begin  -- architecture sim
+
+  MupixStateMachine_1: entity work.MupixStateMachine
+    port map (
+      clk      => clk,
+      reset    => reset,
+      words    => words,
+      slowdown => slowdown,
+      wr_en    => wr_en,
+      data_out => data_out);
+  
+  dec_8b10b_1: entity work.dec_8b10b
+    port map (
+      RESET    => reset,
+      RBYTECLK => clk,
+      input    => data_out,
+      KO       => komma,
+      output   => data_in);
+  
+  MupixUnpacker_1 : entity work.MupixUnpacker
+    generic map (
+      g_hitsize     => 40,
+      g_countersize => 32)
+    port map (
+      clk               => clk,
+      reset             => reset,
+      reset_counter     => reset_counter,
+      data_in           => data_in,
+      komma             => komma,
+      valid             => valid,
+      hit_out           => hit_out,
+      hit_enable        => hit_enable,
+      link_flag         => link_flag,
+      errorcounter_gray => errorcounter_gray,
+      errorcounter      => errorcounter);
+
+  clk_gen: process is
+  begin  -- process clk_gen
+    clk <= '1';
+    wait for clock_period/2;
+    clk <= '0';
+    wait for clock_period/2;
+  end process clk_gen;
+
+  reset <= '0' after 200 ns;
+  valid <= '1' after 240 ns;
+  
+end architecture sim;
TRB3 VHDL