-NET "adc_d<0>" LOC = "P62" ;
-NET "adc_d<1>" LOC = "P60" ;
-NET "adc_d<2>" LOC = "P58" ;
-NET "adc_d<3>" LOC = "P57" ;
-NET "adc_d<4>" LOC = "P56" ;
-NET "adc_d<5>" LOC = "P55" ;
-NET "adc_d<6>" LOC = "P54" ;
-NET "adc_d<7>" LOC = "P53" ;
-#NET "cross_hi" LOC = "P88" ;
-#NET "miso" LOC = "P40" ;
+NET "adc_d<0>" LOC = "P62" ;
+NET "adc_d<1>" LOC = "P60" ;
+NET "adc_d<2>" LOC = "P58" ;
+NET "adc_d<3>" LOC = "P57" ;
+NET "adc_d<4>" LOC = "P56" ;
+NET "adc_d<5>" LOC = "P55" ;
+NET "adc_d<6>" LOC = "P54" ;
+NET "adc_d<7>" LOC = "P53" ;
+NET "cross_hi" LOC = "P88" ;
+#NET "miso" LOC = "P40" ;
-NET "adc_clk" LOC = "P46" ;
-NET "adc_noe" LOC = "P47" ;
-NET "ck_1356meg" LOC = "P91" ;
-NET "ck_1356megb" LOC = "P93" ;
-NET "cross_lo" LOC = "P87" ;
-NET "dbg" LOC = "P22" ;
-NET "mosi" LOC = "P43" ;
-NET "ncs" LOC = "P44" ;
-NET "pck0" LOC = "P36" ;
-NET "pwr_hi" LOC = "P80" ;
-NET "pwr_lo" LOC = "P81" ;
-NET "pwr_oe1" LOC = "P82" ;
-NET "pwr_oe2" LOC = "P83" ;
-NET "pwr_oe3" LOC = "P84" ;
-NET "pwr_oe4" LOC = "P86" ;
-NET "spck" LOC = "P39" ;
-NET "ssp_clk" LOC = "P71" ;
-NET "ssp_din" LOC = "P32" ;
-NET "ssp_dout" LOC = "P34" ;
-NET "ssp_frame" LOC = "P31" ;
+NET "adc_clk" LOC = "P46" ;
+NET "adc_noe" LOC = "P47" ;
+NET "ck_1356meg" LOC = "P91" ;
+NET "ck_1356megb" LOC = "P93" ;
+NET "cross_lo" LOC = "P87" ;
+NET "dbg" LOC = "P22" ;
+NET "mosi" LOC = "P43" ;
+NET "ncs" LOC = "P44" ;
+NET "pck0" LOC = "P36" ;
+NET "pwr_hi" LOC = "P80" ;
+NET "pwr_lo" LOC = "P81" ;
+NET "pwr_oe1" LOC = "P82" ;
+NET "pwr_oe2" LOC = "P83" ;
+NET "pwr_oe3" LOC = "P84" ;
+NET "pwr_oe4" LOC = "P86" ;
+NET "spck" LOC = "P39" ;
+NET "ssp_clk" LOC = "P71" ;
+NET "ssp_din" LOC = "P32" ;
+NET "ssp_dout" LOC = "P34" ;
+NET "ssp_frame" LOC = "P31" ;
#PACE: Start of PACE Area Constraints
#PACE: Start of PACE Prohibit Constraints
#PACE: End of Constraints generated by PACE
#PACE: Start of PACE Area Constraints
#PACE: Start of PACE Prohibit Constraints
#PACE: End of Constraints generated by PACE
+
+# definition of Clock nets:
+NET "ck_1356meg" TNM_NET = "clk_net_1356" ;
+NET "ck_1356megb" TNM_NET = "clk_net_1356b" ;
+NET "pck0" TNM_NET = "clk_net_pck0" ;
+NET "spck" TNM_NET = "clk_net_spck" ;
+
+# Timing specs of clock nets:
+TIMEGRP "clk_net_1356_all" = "clk_net_1356" "clk_net_1356b" ;
+TIMESPEC "TS_1356MHz" = PERIOD "clk_net_1356_all" 74 ns HIGH 37 ns ;
+TIMESPEC "TS_24MHz" = PERIOD "clk_net_pck0" 42 ns HIGH 21 ns ;
+TIMESPEC "TS_4MHz" = PERIOD "clk_net_spck" 250 ns HIGH 125 ns ;
+