Renamed g_sim into g_use_ddr_memory_model.

libraries/technology/ddr/tech_ddr.vhd

@@ -24,9 +24,11 @@
 -- Description:
 --   The component also supports different types of DDR, so DDR3 and DDR4.
 -- Remark:
---   In simulation use g_sim=TRUE to also include the DDR memory model that is
---   internally available within tech_ddr. This avoids having to connect a DDR
---   memory model at top level in the test bench.
+--   In simulation use g_use_ddr_memory_model=TRUE to also include the DDR
+--   memory model that is internally available within tech_ddr. This avoids
+--   having to connect a DDR memory model at top level in the test bench.
+--   Default g_use_ddr_memory_model must be FALSE to avoid further analysis
+--   of the DDR memory model component by synthesis.
 
 LIBRARY IEEE, common_lib, technology_lib;
 USE IEEE.STD_LOGIC_1164.ALL;
@@ -37,9 +39,9 @@ USE work.tech_ddr_pkg.ALL;
 
 ENTITY tech_ddr IS
   GENERIC (
-    g_technology : NATURAL := c_tech_select_default;
-    g_tech_ddr   : t_c_tech_ddr;
-    g_sim        : BOOLEAN := FALSE
+    g_technology           : NATURAL := c_tech_select_default;
+    g_tech_ddr             : t_c_tech_ddr;
+    g_use_ddr_memory_model : BOOLEAN := FALSE
   );
   PORT (
     -- PLL reference clock
@@ -90,15 +92,15 @@ BEGIN
               phy_in, phy_io, i_phy_ou);
   END GENERATE;
   
-  -- Include DDR memory model for simulation
-  no_sim : IF g_sim=FALSE GENERATE
+  -- Include DDR memory model only for simulation
+  no_ddr_memory_model : IF g_use_ddr_memory_model=FALSE GENERATE
     phy_ou <= i_phy_ou;
   END GENERATE;
   
-  gen_sim: IF g_sim=TRUE GENERATE
+  gen_ddr_memory_model: IF g_use_ddr_memory_model=TRUE GENERATE
     u_tech_ddr_memory_model : ENTITY work.tech_ddr_memory_model
     GENERIC MAP (
-      g_sim => g_sim,
+      g_sim      => g_use_ddr_memory_model,
       g_tech_ddr => g_tech_ddr
     )
     PORT MAP (