diff --git a/projects/mips_sys/ise101/mips_sys/project/mips_sys.ucf b/projects/mips_sys/ise101/mips_sys/project/mips_sys.ucf
index 8677362..9735c82 100644
--- a/projects/mips_sys/ise101/mips_sys/project/mips_sys.ucf
+++ b/projects/mips_sys/ise101/mips_sys/project/mips_sys.ucf
@@ -35,12 +35,17 @@ NET "gmii_clk" TNM_NET = "gmii_clk";
 TIMESPEC "TS_gmii_clk" = PERIOD "gmii_clk" 8.0 ns HIGH 50 %;
 TIMESPEC "TS_unrelate_GMII" = FROM sys_clk TO gmii_clk TIG;
 
+NET "sys_ac97_bit_clk"  TNM_NET = "ac97_clk";
+TIMESPEC "TS_ac97_clk" = PERIOD "ac97_clk" 80 ns HIGH 50 %;
+TIMESPEC "TS_unrelate_AC97" = FROM sys_clk TO ac97_clk TIG;
+
 NET "sys_clk_in" LOC = "AE14";
 NET sys_clk_in IOSTANDARD = LVCMOS33;
 NET "sys_rst_n_in" LOC = "D6";
 NET sys_rst_n_in PULLUP;
 NET "sys_rst_n_in" TIG;
 NET "RST_O" TIG;
+NET "vga_rst" TIG;
 
 #NET "sys_clk_in" CLOCK_DEDICATED_ROUTE = FALSE;
 #PIN "inst_clockgen/inst_DCM_BASE_0.CLKIN" CLOCK_DEDICATED_ROUTE = FALSE;
@@ -536,9 +541,6 @@ NET sys_vga_sync_n IOSTANDARD = LVCMOS33;
 #------------------------------------------------------------------------------
 # IO Pad Location Constraints / Properties for AC97 Sound Controller
 #------------------------------------------------------------------------------
-NET "sys_ac97_bit_clk"  TNM_NET = "ac97_clk";
-TIMESPEC "TSACBITCLK" = PERIOD "ac97_clk" 80 ns HIGH 50 %;
-
 NET sys_ac97_bit_clk   LOC = AE10;
 NET sys_ac97_bit_clk   IOSTANDARD = LVCMOS33;
 NET sys_ac97_bit_clk   PERIOD = 80;