diff --git a/library/common/altera/ad_cmos_in.v b/library/common/altera/ad_cmos_in.v
index 85b791926..b424cc440 100644
--- a/library/common/altera/ad_cmos_in.v
+++ b/library/common/altera/ad_cmos_in.v
@@ -93,10 +93,29 @@ module ad_cmos_in (
 
   // instantiations
 
+  generate
+  if (DEVICE_TYPE == 0) begin
   alt_ddio_in i_rx_data_iddr (
     .ck (rx_clk),
     .pad_in (rx_data_in),
     .dout ({rx_data_p, rx_data_n}));
+  end
+  endgenerate
+
+  generate
+  if (DEVICE_TYPE == 1) begin
+  altddio_in #(.width (1), .lpm_hint("UNUSED")) i_rx_data_iddr (
+    .inclock (rx_clk),
+    .datain (rx_data_in),
+    .dataout_h (rx_data_p),
+    .dataout_l (rx_data_n),
+    .inclocken (1'b1),
+    .aclr (1'b0),
+    .aset (1'b0),
+    .sclr (1'b0),
+    .sset (1'b0));
+  end
+  endgenerate
 
 endmodule
 
diff --git a/library/common/altera/ad_cmos_out.v b/library/common/altera/ad_cmos_out.v
index 46896e197..c54d53d5d 100644
--- a/library/common/altera/ad_cmos_out.v
+++ b/library/common/altera/ad_cmos_out.v
@@ -94,10 +94,31 @@ module ad_cmos_out (
 
   // instantiations
 
+  generate
+  if (DEVICE_TYPE == 0) begin
   alt_ddio_out i_tx_data_oddr (
     .ck (tx_clk),
     .din ({tx_data_p, tx_data_n}),
     .pad_out (tx_data_out));
+  end
+  endgenerate
+
+  generate
+  if (DEVICE_TYPE == 1) begin
+  altddio_out #(.width (1), .lpm_hint ("UNUSED")) i_tx_data_oddr (
+    .outclock (tx_clk),
+    .datain_h (tx_data_p),
+    .datain_l (tx_data_n),
+    .dataout (tx_data_out),
+    .outclocken (1'b1),
+    .oe_out (),
+    .oe (1'b1),
+    .aclr (1'b0),
+    .aset (1'b0),
+    .sclr (1'b0),
+    .sset (1'b0));
+  end
+  endgenerate
 
 endmodule
 
diff --git a/library/common/altera/ad_lvds_in.v b/library/common/altera/ad_lvds_in.v
index 7422234bd..08dd863f1 100644
--- a/library/common/altera/ad_lvds_in.v
+++ b/library/common/altera/ad_lvds_in.v
@@ -95,10 +95,29 @@ module ad_lvds_in (
 
   // instantiations
 
+  generate
+  if (DEVICE_TYPE == 0) begin
   alt_ddio_in i_rx_data_iddr (
     .ck (rx_clk),
     .pad_in (rx_data_in_p),
     .dout ({rx_data_p, rx_data_n}));
+  end
+  endgenerate
+
+  generate
+  if (DEVICE_TYPE == 1) begin
+  altddio_in #(.width (1), .lpm_hint("UNUSED")) i_rx_data_iddr (
+    .inclock (rx_clk),
+    .datain (rx_data_in_p),
+    .dataout_h (rx_data_p),
+    .dataout_l (rx_data_n),
+    .inclocken (1'b1),
+    .aclr (1'b0),
+    .aset (1'b0),
+    .sclr (1'b0),
+    .sset (1'b0));
+  end
+  endgenerate
 
 endmodule
 
diff --git a/library/common/altera/ad_lvds_out.v b/library/common/altera/ad_lvds_out.v
index dc673ac80..9f8bf8cec 100644
--- a/library/common/altera/ad_lvds_out.v
+++ b/library/common/altera/ad_lvds_out.v
@@ -96,10 +96,31 @@ module ad_lvds_out (
 
   // instantiations
 
+  generate
+  if (DEVICE_TYPE == 0) begin
   alt_ddio_out i_tx_data_oddr (
     .ck (tx_clk),
     .din ({tx_data_p, tx_data_n}),
     .pad_out (tx_data_out_p));
+  end
+  endgenerate
+
+  generate
+  if (DEVICE_TYPE == 1) begin
+  altddio_out #(.width (1), .lpm_hint ("UNUSED")) i_tx_data_oddr (
+    .outclock (tx_clk),
+    .datain_h (tx_data_p),
+    .datain_l (tx_data_n),
+    .dataout (tx_data_out_p),
+    .outclocken (1'b1),
+    .oe_out (),
+    .oe (1'b1),
+    .aclr (1'b0),
+    .aset (1'b0),
+    .sclr (1'b0),
+    .sset (1'b0));
+  end
+  endgenerate
 
 endmodule