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#PACE: Start of Constraints generated by PACE

#PACE: Start of PACE I/O Pin Assignments

# 100 MHz clock

NET "sys_clk"        LOC = "B8"  ;

#

# PUSH BUTTONS

#

# SW3 - pushbutton 1

NET "rst_sw"        LOC = "M4"  ;

# SW4 - pushbutton 2

NET "nmi_sw"        LOC = "T7"  ;

#

# LEDs

#

#NET "leds<0>"       LOC = "K12";

#NET "leds<1>"       LOC = "P14";

#NET "leds<2>"       LOC = "L12";

#NET "leds<3>"       LOC = "N14";

#NET "leds<4>"       LOC = "P13";

#NET "leds<5>"       LOC = "N12";

#NET "leds<6>"       LOC = "P12";

#NET "leds<7>"       LOC = "P11";

#

# Switches

#

NET "switches<0>"   LOC = "D8";

NET "switches<1>"   LOC = "R13";

NET "switches<2>"   LOC = "T14";

NET "switches<3>"   LOC = "P16";

NET "switches<4>"   LOC = "N16";

NET "switches<5>"   LOC = "M13";

NET "switches<6>"   LOC = "J16";

NET "switches<7>"   LOC = "J15";

#

# PS/2 KEYBOARD

#

#NET "ps2c"          LOC = "M16"  ;

#NET "ps2d"          LOC = "M15"  ;

#

# UART

#

NET "rxd"           LOC = "T9"  ;

NET "txd"           LOC = "T10"  ;

#

# VDU

#

NET "red"           LOC = "M2"  ;

NET "green"         LOC = "T5"  ;

NET "blue"          LOC = "N7"  ;

NET "hs"            LOC = "L1"  ;

NET "vs"            LOC = "L2"  ;

#

# 7 SEGMENT DISPLAY

#

NET "segments<0>"   LOC = "D12";

NET "segments<1>"   LOC = "C12";

NET "segments<2>"   LOC = "B13";

NET "segments<3>"   LOC = "A9";

NET "segments<4>"   LOC = "B9";

NET "segments<5>"   LOC = "C9";

NET "segments<6>"   LOC = "D9";

NET "segments<7>"   LOC = "A10";

#

# Timing Constraints

#

NET "sys_clk" TNM_NET = "sys_clk";

TIMESPEC "TS_sys_clk" = PERIOD "sys_clk" 20 ns LOW 50 %;

#PACE: Start of PACE Area Constraints

#PACE: Start of PACE Prohibit Constraints

#PACE: End of Constraints generated by PACE