tx2bit.ucf

FPGA-CPLD_DesignTool(example5-6）

#INST tx2bit/ddrfd/ddr_fd3 LOC= "CLB_R64C45.S1"
#INST tx2bit/ddrfd/ddr_fd4 LOC= "CLB_R64C45.S1"
############################################################################
############################################################################
NET "clk4x" TNM_NET = "clk4x";
TIMESPEC "TS_clk4x" = PERIOD "clk4x" 2 ns HIGH 50 %;
NET "clk" TNM_NET = "clk";
TIMESPEC "TS_clk" = PERIOD "clk" 8 ns HIGH 50 %;
NET "ddra/qrise" MAXDELAY = 600ps;
NET "ddra/qrise" MAXSKEW = 50ps;
NET "ddra/qfall" MAXDELAY = 600ps;
NET "ddra/qfall" MAXSKEW = 50ps;
NET "ddra/crr"   MAXDELAY = 600ps;
NET "ddra/crf"   MAXDELAY = 600ps;
NET "ddrb/qrise" MAXDELAY = 600ps;
NET "ddrb/qrise" MAXSKEW = 50ps;
NET "ddrb/qfall" MAXDELAY = 600ps;
NET "ddrb/qfall" MAXSKEW = 50ps;
NET "ddrb/crr"   MAXDELAY = 600ps;
NET "ddrb/crf"   MAXDELAY = 600ps;
NET "ddrc/qrise" MAXDELAY = 600ps;
NET "ddrc/qrise" MAXSKEW = 50ps;
NET "ddrc/qfall" MAXDELAY = 600ps;
NET "ddrc/qfall" MAXSKEW = 50ps;
NET "ddrc/crr"   MAXDELAY = 600ps;
NET "ddrc/crf"   MAXDELAY = 600ps;
TIMEGRP "FASTCLOCK" = clk4x;
TIMEGRP "FASELATCH" = LATCHES( "ddra/lrf" "ddra/lrr" "ddrb/lrf" "ddrb/lrr" "ddrc/lrf" "ddrc/lrr" );
TIMESPEC "TS_FST2FST" = FROM "FASTCLOCK" TO "FASTCLOCK" 3.8 ns;
TIMESPEC "TS_FST2LAT" = FROM "FASTCLOCK" TO "FASELATCH" 3.8 ns;
TIMESPEC "TS_LAT2LAT" = FROM "FASELATCH" TO "FASELATCH" 3.8 ns;
TIMEGRP "SLOWCLOCK" = clk;
TIMESPEC "TS_SLO2FST" = FROM "SLOWCLOCK" TO "FASTCLOCK" 8 ns;
INST "ddra/ddr_ld1" TNM = "ddrd_ld";
INST "ddra/ddr_ld2" TNM = "ddrd_ld";
INST "ddrb/ddr_ld1" TNM = "ddrd_ld";
INST "ddrb/ddr_ld2" TNM = "ddrd_ld";
INST "ddrc/ddr_ld1" TNM = "ddrd_ld";
INST "ddrc/ddr_ld2" TNM = "ddrd_ld";
INST "ddra/ddr_ld1" TNM = "ddra_ld1";
INST "ddra/ddr_fd3" TNM = "ddr_fd3";
#TIMESPEC "TS_DDR" = FROM "ddra_ld1" TO "ddr_fd3" 2 ns
#PINLOCK_BEGIN
#Sat Dec 14 11:35:24 2002
NET "clk4x" LOC = "P89";
NET "clk" LOC = "P213";
NET "da" LOC = "P110";
NET "da_x" LOC = "P111";
NET "ck" LOC = "P113";
NET "ck_x" LOC = "P114";
NET "db" LOC = "P117";
NET "db_x" LOC = "P118";
#PINLOCK_END