diff --git a/libraries/technology/ddr/tech_ddr.vhd b/libraries/technology/ddr/tech_ddr.vhd
index b70734d969e3708911751927f9e4ca62c5385fe8..60ade934ae646a065120de68eb07e066e3f5300a 100644
--- a/libraries/technology/ddr/tech_ddr.vhd
+++ b/libraries/technology/ddr/tech_ddr.vhd
@@ -71,17 +71,6 @@ END tech_ddr;
 
 ARCHITECTURE str OF tech_ddr IS
 
-  CONSTANT c_nof_addr : NATURAL := 2**func_tech_ddr_ctlr_address_w(g_tech_ddr);  --8192;
-  CONSTANT c_dat_w    : NATURAL := func_tech_ddr_ctlr_data_w(g_tech_ddr);  --256;
-
-  TYPE t_mem_arr IS ARRAY(0 TO c_nof_addr-1) OF STD_LOGIC_VECTOR(c_dat_w-1 DOWNTO 0);
-
-  SIGNAL sim_clk : STD_LOGIC;
-  SIGNAL sim_rst : STD_LOGIC;
-  SIGNAL sim_ctlr_mosi : t_mem_ctlr_mosi;
-
-  SIGNAL address : NATURAL;
-
 BEGIN
 
   -----------------------------------------------------------------------------