## Pinouts for the Spartan-3 Starter Board
## Robert Stone, 7/16/2005
## Copy to a UCF file and uncomment the signals that you plan to use,
## OR select "Allow Unmatched LOC Constraints" from Implement Design->Properties.

# Primary Clock
NET "gck0"      LOC = "t9"   ;
NET "mclk"		 LOC = "t9"

# 4 Digit 7 Segment LED Display
# Segment Pins - ACTIVE LOW
NET "seg<0>"    LOC = "e14"  ;
NET "seg<1>"    LOC = "g13"  ;
NET "seg<2>"    LOC = "n15"  ;
NET "seg<3>"    LOC = "p15"  ;
NET "seg<4>"    LOC = "r16"  ;
NET "seg<5>"    LOC = "f13"  ;
NET "seg<6>"    LOC = "n16"  ;
NET "seg<7>"    LOC = "p16"  ;
# Anode pins for each digit - ACTIVE LOW
NET "an<0>"  LOC = "d14"  ;
NET "an<1>"  LOC = "g14"  ;
NET "an<2>"  LOC = "f14"  ;
NET "an<3>"  LOC = "e13"  ;

# Single Throw Slide Switches
NET "sw<0>"  LOC = "f12"  ;
NET "sw<1>"  LOC = "g12"  ;
NET "sw<2>"  LOC = "h14"  ;
NET "sw<3>"  LOC = "h13"  ;
NET "sw<4>"  LOC = "j14"  ;
NET "sw<5>"  LOC = "j13"  ;
NET "sw<6>"  LOC = "k14"  ;
NET "sw<7>"  LOC = "k13"  ;

# Push Button Switches
NET "btn<0>" LOC = "m13"  ;
NET "btn<1>" LOC = "m14"  ;
NET "btn<2>" LOC = "l13"  ;
NET "btn<3>" LOC = "l14"  ;
# By convention, btn3 is the "user reset" button.
NET "btn_reset" LOC = "l14" ;

# Individual LEDs
NET "led<0>"  LOC = "k12"  ;
NET "led<1>"  LOC = "p14"  ;
NET "led<2>"  LOC = "l12"  ;
NET "led<3>"  LOC = "n14"  ;
NET "led<4>"  LOC = "p13"  ;
NET "led<5>"  LOC = "n12"  ;
NET "led<6>"  LOC = "p12"  ;
NET "led<7>"  LOC = "p11"  ;

# port a io pins
NET "pa-io1"  LOC = "e6"  ;
NET "pa-io2"  LOC = "d5"  ;