Eric Kooistra
--- a/libraries/technology/tse/sim_tse.vhd
+++ b/libraries/technology/tse/sim_tse.vhd
  SIGNAL tx_snk_rst : STD_LOGIC;
  SIGNAL rx_src_rst : STD_LOGIC;

-  SIGNAL sim_transceiver_gx_tx_snk_in_arr  : t_dp_sosi_arr(0 DOWNTO 0);
-  SIGNAL sim_transceiver_gx_tx_snk_out_arr : t_dp_siso_arr(0 DOWNTO 0);
+  SIGNAL tx_fifo_sosi  : t_dp_sosi := c_dp_sosi_rst;
+  SIGNAL tx_fifo_siso  : t_dp_siso := c_dp_siso_hold;
+  
+  TYPE t_reg IS RECORD
+    crc_sosi : t_dp_sosi;
+    crc_cnt  : NATURAL RANGE 0 TO 4;
--- a/libraries/technology/tse/sim_tse.vhd
+++ b/libraries/technology/tse/sim_tse.vhd
+    BEGIN
+      crc_siso.ready <= '1';
+      v := r;
+      v.crc_sosi.valid := '0';
+      v.crc_sosi.eop := '0';
+      IF tx_fifo_sosi.eop='1' THEN
+        crc_siso.ready <= '0';
+        v.crc_sosi.valid := '1';
+        v.crc_cnt := 1;
+      END IF;
+      IF r.crc_cnt>0 THEN
+        crc_siso.ready <= '0';
+        v.crc_sosi.valid := '1';
+        v.crc_cnt := r.crc_cnt + 1;
+      END IF;
+      IF r.crc_cnt=3 THEN