From c8ebfe116e6713123ba985d2e33880f403270fb9 Mon Sep 17 00:00:00 2001
From: Erik Kooistra <kooistra@astron.nl>
Date: Fri, 8 Dec 2017 12:05:57 +0000
Subject: [PATCH] Imporved g_sim_model description comment.

---
 libraries/io/ddr/src/vhdl/io_ddr.vhd  | 2 +-
 libraries/technology/ddr/tech_ddr.vhd | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libraries/io/ddr/src/vhdl/io_ddr.vhd b/libraries/io/ddr/src/vhdl/io_ddr.vhd
index 7de57238ca..853199c9c0 100644
--- a/libraries/io/ddr/src/vhdl/io_ddr.vhd
+++ b/libraries/io/ddr/src/vhdl/io_ddr.vhd
@@ -154,7 +154,7 @@ USE dp_lib.dp_stream_pkg.ALL;
 
 ENTITY io_ddr IS
   GENERIC(
-    g_sim_model               : BOOLEAN := FALSE;
+    g_sim_model               : BOOLEAN := FALSE;   -- when FALSE use IP and external DDR3 model, else when TRUE: use fast behavioural model, requires no external memory (uses memory array).
     g_technology              : NATURAL := c_tech_select_default;
     g_tech_ddr                : t_c_tech_ddr;
     g_cross_domain_dvr_ctlr   : BOOLEAN := TRUE;    -- use TRUE when MM clock is used for the access control, use FALSE when ctlr_clk_in=ctlr_clk_out is used to avoid extra latency
diff --git a/libraries/technology/ddr/tech_ddr.vhd b/libraries/technology/ddr/tech_ddr.vhd
index 3af72eea83..0ef6172981 100644
--- a/libraries/technology/ddr/tech_ddr.vhd
+++ b/libraries/technology/ddr/tech_ddr.vhd
@@ -35,7 +35,7 @@ USE work.tech_ddr_pkg.ALL;
 
 ENTITY tech_ddr IS
   GENERIC (
-    g_sim_model            : BOOLEAN := FALSE;  -- TRUE: use fast behavioural model, requires no external memory (uses memory array).
+    g_sim_model            : BOOLEAN := FALSE;  -- when FALSE use IP and external DDR3 model, else when TRUE: use fast behavioural model, requires no external memory (uses memory array).
     g_technology           : NATURAL := c_tech_select_default;
     g_tech_ddr             : t_c_tech_ddr
   );
-- 
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