#PACE: Start of Constraints generated by PACE
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#PACE: Start of Constraints generated by PACE
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#PACE: Start of PACE I/O Pin Assignments
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#PACE: Start of PACE I/O Pin Assignments
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# 100 MHz clock
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# 100 MHz clock
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NET "sys_clk" LOC = "B8" ;
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NET "sys_clk" LOC = "B8" ;
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#
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#
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# PUSH BUTTONS
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# PUSH BUTTONS
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#
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#
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# SW3 - pushbutton 1
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# SW3 - pushbutton 1
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NET "rst_sw" LOC = "M4" ;
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NET "rst_sw" LOC = "M4" ;
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# SW4 - pushbutton 2
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# SW4 - pushbutton 2
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NET "nmi_sw" LOC = "T7" ;
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NET "nmi_sw" LOC = "T7" ;
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#
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#
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# LEDs
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# LEDs
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#
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#
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#NET "leds<0>" LOC = "K12";
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#NET "leds<0>" LOC = "K12";
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#NET "leds<1>" LOC = "P14";
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#NET "leds<1>" LOC = "P14";
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#NET "leds<2>" LOC = "L12";
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#NET "leds<2>" LOC = "L12";
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#NET "leds<3>" LOC = "N14";
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#NET "leds<3>" LOC = "N14";
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#NET "leds<4>" LOC = "P13";
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#NET "leds<4>" LOC = "P13";
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#NET "leds<5>" LOC = "N12";
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#NET "leds<5>" LOC = "N12";
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#NET "leds<6>" LOC = "P12";
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#NET "leds<6>" LOC = "P12";
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#NET "leds<7>" LOC = "P11";
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#NET "leds<7>" LOC = "P11";
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#
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#
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# Switches
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# Switches
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#
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#
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NET "switches<0>" LOC = "D8";
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NET "switches<0>" LOC = "D8";
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NET "switches<1>" LOC = "R13";
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NET "switches<1>" LOC = "R13";
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NET "switches<2>" LOC = "T14";
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NET "switches<2>" LOC = "T14";
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NET "switches<3>" LOC = "P16";
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NET "switches<3>" LOC = "P16";
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NET "switches<4>" LOC = "N16";
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NET "switches<4>" LOC = "N16";
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NET "switches<5>" LOC = "M13";
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NET "switches<5>" LOC = "M13";
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NET "switches<6>" LOC = "J16";
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NET "switches<6>" LOC = "J16";
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NET "switches<7>" LOC = "J15";
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NET "switches<7>" LOC = "J15";
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#
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#
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# PS/2 KEYBOARD
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# PS/2 KEYBOARD
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#
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#
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#NET "ps2c" LOC = "M16" ;
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#NET "ps2c" LOC = "M16" ;
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#NET "ps2d" LOC = "M15" ;
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#NET "ps2d" LOC = "M15" ;
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#
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#
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# UART
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# UART
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#
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#
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NET "rxd" LOC = "T9" ;
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NET "rxd" LOC = "T9" ;
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NET "txd" LOC = "T10" ;
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NET "txd" LOC = "T10" ;
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#
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#
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# VDU
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# VDU
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#
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#
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NET "red" LOC = "M2" ;
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NET "red" LOC = "M2" ;
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NET "green" LOC = "T5" ;
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NET "green" LOC = "T5" ;
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NET "blue" LOC = "N7" ;
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NET "blue" LOC = "N7" ;
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NET "hs" LOC = "L1" ;
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NET "hs" LOC = "L1" ;
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NET "vs" LOC = "L2" ;
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NET "vs" LOC = "L2" ;
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#
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#
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# 7 SEGMENT DISPLAY
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# 7 SEGMENT DISPLAY
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#
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#
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NET "segments<0>" LOC = "D12";
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NET "segments<0>" LOC = "D12";
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NET "segments<1>" LOC = "C12";
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NET "segments<1>" LOC = "C12";
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NET "segments<2>" LOC = "B13";
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NET "segments<2>" LOC = "B13";
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NET "segments<3>" LOC = "A9";
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NET "segments<3>" LOC = "A9";
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NET "segments<4>" LOC = "B9";
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NET "segments<4>" LOC = "B9";
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NET "segments<5>" LOC = "C9";
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NET "segments<5>" LOC = "C9";
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NET "segments<6>" LOC = "D9";
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NET "segments<6>" LOC = "D9";
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NET "segments<7>" LOC = "A10";
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NET "segments<7>" LOC = "A10";
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#
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#
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# Timing Constraints
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# Timing Constraints
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#
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#
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NET "sys_clk" TNM_NET = "sys_clk";
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NET "sys_clk" TNM_NET = "sys_clk";
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TIMESPEC "TS_sys_clk" = PERIOD "sys_clk" 20 ns LOW 50 %;
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TIMESPEC "TS_sys_clk" = PERIOD "sys_clk" 20 ns LOW 50 %;
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#PACE: Start of PACE Area Constraints
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#PACE: Start of PACE Area Constraints
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#PACE: Start of PACE Prohibit Constraints
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#PACE: Start of PACE Prohibit Constraints
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#PACE: End of Constraints generated by PACE
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#PACE: End of Constraints generated by PACE
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