CONFIG PART = XC3SD1800A-FG676-4;

NET I_CLK_125M	TNM_NET = clk_ref_grp;
TIMESPEC TS01 = PERIOD : clk_ref_grp : 8.00 : PRIORITY 1; #125 MHz

TIMESPEC TS11=FROM:PADS:TO:FFS : 30 ns;
TIMESPEC TS12=FROM:FFS:TO:PADS : 30 ns;

#---------- MasterClock 18.432MHz ----------
NET "I_CLK_125M" LOC = "F13" | IOSTANDARD = LVCMOS33;
#-------------------------------------------
#---------- SW I/F -------------------------
NET "I_PSW<0>" LOC = "K19" | IOSTANDARD = LVTTL | PULLUP; #up
NET "I_PSW<1>" LOC = "K18" | IOSTANDARD = LVTTL | PULLUP; #down
NET "I_PSW<2>" LOC = "G22" | IOSTANDARD = LVTTL | PULLUP; #left
NET "I_PSW<3>" LOC = "F22" | IOSTANDARD = LVTTL | PULLUP; #right
NET "I_PSW<4>" LOC = "F23" | IOSTANDARD = LVTTL | PULLUP; #btn
NET "I_PSW<5>" LOC = "J10" | IOSTANDARD = LVTTL | PULLDOWN; #s8 - s1
NET "I_PSW<6>" LOC = "J13" | IOSTANDARD = LVTTL | PULLDOWN; #s7 - c1
NET "I_PSW<7>" LOC = "J15" | IOSTANDARD = LVTTL | PULLDOWN; #s6 - s2
NET "I_PSW<8>" LOC = "J17" | IOSTANDARD = LVTTL | PULLDOWN; #s5 - c2
#-------------------------------------------
#--------- SOUND I/F -----------------------
NET "O_SOUND_OUT_L" LOC = "AA22" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 8;
NET "O_SOUND_OUT_R" LOC = "V19" | IOSTANDARD = LVTTL | SLEW = SLOW | DRIVE = 8;
#-------------------------------------------
#--------- VIDEO I/F -----------------------
NET "O_VGA_R<0>" LOC = "L20" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "O_VGA_R<1>" LOC = "K20" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "O_VGA_R<2>" LOC = "F25" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "O_VGA_R<3>" LOC = "F24" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "O_VGA_G<0>" LOC = "M19" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "O_VGA_G<1>" LOC = "M18" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "O_VGA_G<2>" LOC = "J23" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "O_VGA_G<3>" LOC = "J22" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "O_VGA_B<0>" LOC = "L22" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "O_VGA_B<1>" LOC = "K21" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "O_VGA_B<2>" LOC = "G23" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "O_VGA_B<3>" LOC = "G24" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;

NET "O_VGA_H_SYNCn" LOC = "K26" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;
NET "O_VGA_V_SYNCn" LOC = "K25" | IOSTANDARD = LVTTL | DRIVE = 8 | SLEW = FAST ;


#-------------------------------------------
#
#---------- Build-in ROM -------------------------------------------------------------------------------
#INST "col_rom00" INIT_00 = c6077600f007f6000700000007a0c00007c4c0003f07d8003fc01600f6000000;