1 files changed, 11 insertions, 0 deletions
diff --git a/techlibs/xilinx/cells_sim.v b/techlibs/xilinx/cells_sim.v
index 28cd208cd..03985b1be 100644
--- a/techlibs/xilinx/cells_sim.v
+++ b/techlibs/xilinx/cells_sim.v
@@ -38,6 +38,17 @@ module IBUF(
   assign O = I;
 endmodule
 
+module IBUFG(
+    output O,
+    (* iopad_external_pin *)
+    input I);
+  parameter CAPACITANCE = "DONT_CARE";
+  parameter IBUF_DELAY_VALUE = "0";
+  parameter IBUF_LOW_PWR = "TRUE";
+  parameter IOSTANDARD = "DEFAULT";
+  assign O = I;
+endmodule
+
 module OBUF(
     (* iopad_external_pin *)
     output O,