diff --git a/projects/mips_sys/ise101/mips_sys/ucf/systest.ucf b/projects/mips_sys/ise101/mips_sys/ucf/systest.ucf
index d40060c..991df7f 100644
--- a/projects/mips_sys/ise101/mips_sys/ucf/systest.ucf
+++ b/projects/mips_sys/ise101/mips_sys/ucf/systest.ucf
@@ -525,3 +525,28 @@ NET sys_ac97_sdata_out LOC = C8;
 NET sys_ac97_sdata_out SLEW = FAST;
 NET sys_ac97_ssync     LOC = D9;
 NET sys_ac97_ssync     SLEW = FAST;
+
+#------------------------------------------------------------------------------
+# IO Pad Location Constraints / Properties for PS/2 Ports
+#------------------------------------------------------------------------------
+
+#Keyboard
+NET sys_ps2_0_clk  LOC = D2;
+NET sys_ps2_0_clk  SLEW = SLOW;
+NET sys_ps2_0_clk  DRIVE = 2;
+NET sys_ps2_0_clk  TIG;
+NET sys_ps2_0_data LOC = G9;
+NET sys_ps2_0_data SLEW = SLOW;
+NET sys_ps2_0_data DRIVE = 2;
+NET sys_ps2_0_data TIG;
+
+#Mouse
+NET sys_ps2_1_clk  LOC = B14;
+NET sys_ps2_1_clk  SLEW = SLOW;
+NET sys_ps2_1_clk  DRIVE = 2;
+NET sys_ps2_1_clk  TIG;
+NET sys_ps2_1_data LOC = C14;
+NET sys_ps2_1_data SLEW = SLOW;
+NET sys_ps2_1_data DRIVE = 2;
+NET sys_ps2_1_data TIG;
+