diff --git a/library/axi_clkgen/axi_clkgen.v b/library/axi_clkgen/axi_clkgen.v
index eabe5564e..296f94b02 100644
--- a/library/axi_clkgen/axi_clkgen.v
+++ b/library/axi_clkgen/axi_clkgen.v
@@ -76,7 +76,9 @@ module axi_clkgen (
   parameter   VCO_DIV = 11;
   parameter   VCO_MUL = 49;
   parameter   CLK0_DIV = 6;
+  parameter   CLK0_PHASE = 0.000;
   parameter   CLK1_DIV = 6;
+  parameter   CLK1_PHASE = 0.000;
 
   // clocks
 
@@ -200,7 +202,9 @@ module axi_clkgen (
     .MMCM_VCO_DIV (VCO_DIV),
     .MMCM_VCO_MUL (VCO_MUL),
     .MMCM_CLK0_DIV (CLK0_DIV),
-    .MMCM_CLK1_DIV (CLK1_DIV))
+    .MMCM_CLK0_PHASE (CLK0_PHASE),
+    .MMCM_CLK1_DIV (CLK1_DIV),
+    .MMCM_CLK1_PHASE (CLK1_PHASE))
   i_mmcm_drp (
     .clk (clk),
     .clk2 (clk2),
diff --git a/library/common/ad_mmcm_drp.v b/library/common/ad_mmcm_drp.v
index e423ad03b..3c9cf2302 100644
--- a/library/common/ad_mmcm_drp.v
+++ b/library/common/ad_mmcm_drp.v
@@ -72,7 +72,9 @@ module ad_mmcm_drp (
   parameter   MMCM_VCO_DIV  = 6;
   parameter   MMCM_VCO_MUL = 12.000;
   parameter   MMCM_CLK0_DIV = 2.000;
+  parameter   MMCM_CLK0_PHASE = 0.000 ;
   parameter   MMCM_CLK1_DIV = 6;
+  parameter   MMCM_CLK1_PHASE = 0.000;
 
   // clocks
 
@@ -143,11 +145,11 @@ module ad_mmcm_drp (
     .CLKFBOUT_PHASE (0.000),
     .CLKFBOUT_USE_FINE_PS ("FALSE"),
     .CLKOUT0_DIVIDE_F (MMCM_CLK0_DIV),
-    .CLKOUT0_PHASE (0.000),
+    .CLKOUT0_PHASE (MMCM_CLK0_PHASE),
     .CLKOUT0_DUTY_CYCLE (0.500),
     .CLKOUT0_USE_FINE_PS ("FALSE"),
     .CLKOUT1_DIVIDE (MMCM_CLK1_DIV),
-    .CLKOUT1_PHASE (0.000),
+    .CLKOUT1_PHASE (MMCM_CLK1_PHASE),
     .CLKOUT1_DUTY_CYCLE (0.500),
     .CLKOUT1_USE_FINE_PS ("FALSE"),
     .CLKIN1_PERIOD (MMCM_CLKIN_PERIOD),
@@ -200,11 +202,11 @@ module ad_mmcm_drp (
     .CLKFBOUT_PHASE (0.000),
     .CLKFBOUT_USE_FINE_PS ("FALSE"),
     .CLKOUT0_DIVIDE_F (MMCM_CLK0_DIV),
-    .CLKOUT0_PHASE (0.000),
+    .CLKOUT0_PHASE (MMCM_CLK0_PHASE),
     .CLKOUT0_DUTY_CYCLE (0.500),
     .CLKOUT0_USE_FINE_PS ("FALSE"),
     .CLKOUT1_DIVIDE (MMCM_CLK1_DIV),
-    .CLKOUT1_PHASE (0.000),
+    .CLKOUT1_PHASE (MMCM_CLK1_PHASE),
     .CLKOUT1_DUTY_CYCLE (0.500),
     .CLKOUT1_USE_FINE_PS ("FALSE"),
     .CLKIN1_PERIOD (MMCM_CLKIN_PERIOD),