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## $Id: nexys2_pins.ucf 444 2011-12-25 10:04:58Z mueller $
##
## Pin locks for Nexys 2 core functionality (for 1200k FPGA)
##  - internal RS232
##  - human I/O (switches, buttons, leds, display)
##  - cram
##
## Revision History: 
## Date         Rev Version  Comment
## 2011-11-23   444   1.1    remove clksys output hack
## 2010-11-13   338   1.0.3  add O_CLKSYS (for DCM derived system clock)
## 2010-11-06   336   1.0.2  Rename CLK -> I_CLK50
## 2010-05-23   294   1.0.1  use ADV_N rather ADV
## 2010-05-16   291   1.0    Initial version 
##
## Note: default is DRIVE=12 | SLEW=SLOW
##
## clocks --------------------------------------------------------------------
NET "I_CLK50"   LOC = "b8"  | IOSTANDARD=LVCMOS33;
##
## RS232 interface -----------------------------------------------------------
NET "I_RXD"     LOC = "u6"  | IOSTANDARD=LVCMOS33;
NET "O_TXD"     LOC = "p9"  | IOSTANDARD=LVCMOS33 | DRIVE=12 | SLEW=SLOW;
##
## switches and buttons ------------------------------------------------------
NET "I_SWI<0>"  LOC = "g18" | IOSTANDARD=LVCMOS33;
NET "I_SWI<1>"  LOC = "h18" | IOSTANDARD=LVCMOS33;
NET "I_SWI<2>"  LOC = "k18" | IOSTANDARD=LVCMOS33;
NET "I_SWI<3>"  LOC = "k17" | IOSTANDARD=LVCMOS33;
NET "I_SWI<4>"  LOC = "l14" | IOSTANDARD=LVCMOS33;
NET "I_SWI<5>"  LOC = "l13" | IOSTANDARD=LVCMOS33;
NET "I_SWI<6>"  LOC = "n17" | IOSTANDARD=LVCMOS33;
NET "I_SWI<7>"  LOC = "r17" | IOSTANDARD=LVCMOS33;
##
NET "I_BTN<0>"  LOC = "b18" | IOSTANDARD=LVCMOS33;
NET "I_BTN<1>"  LOC = "d18" | IOSTANDARD=LVCMOS33;
NET "I_BTN<2>"  LOC = "e18" | IOSTANDARD=LVCMOS33;
NET "I_BTN<3>"  LOC = "h13" | IOSTANDARD=LVCMOS33;
##
## LEDs ----------------------------------------------------------------------
NET "O_LED<0>"  LOC = "j14" | IOSTANDARD=LVCMOS33;
NET "O_LED<1>"  LOC = "j15" | IOSTANDARD=LVCMOS33;
NET "O_LED<2>"  LOC = "k15" | IOSTANDARD=LVCMOS33;
NET "O_LED<3>"  LOC = "k14" | IOSTANDARD=LVCMOS33;
NET "O_LED<4>"  LOC = "e16" | IOSTANDARD=LVCMOS33;
NET "O_LED<5>"  LOC = "p16" | IOSTANDARD=LVCMOS33;
NET "O_LED<6>"  LOC = "e4"  | IOSTANDARD=LVCMOS33;
NET "O_LED<7>"  LOC = "p4"  | IOSTANDARD=LVCMOS33;
NET "O_LED<*>" DRIVE=12 | SLEW=SLOW;
##
## 7 segment display ---------------------------------------------------------
NET "O_ANO_N<0>"  LOC = "f17" | IOSTANDARD=LVCMOS33;
NET "O_ANO_N<1>"  LOC = "h17" | IOSTANDARD=LVCMOS33;
NET "O_ANO_N<2>"  LOC = "c18" | IOSTANDARD=LVCMOS33;
NET "O_ANO_N<3>"  LOC = "f15" | IOSTANDARD=LVCMOS33;
NET "O_ANO_N<*>" DRIVE=12 | SLEW=SLOW;
##
NET "O_SEG_N<0>"  LOC = "l18" | IOSTANDARD=LVCMOS33;
NET "O_SEG_N<1>"  LOC = "f18" | IOSTANDARD=LVCMOS33;
NET "O_SEG_N<2>"  LOC = "d17" | IOSTANDARD=LVCMOS33;
NET "O_SEG_N<3>"  LOC = "d16" | IOSTANDARD=LVCMOS33;
NET "O_SEG_N<4>"  LOC = "g14" | IOSTANDARD=LVCMOS33;
NET "O_SEG_N<5>"  LOC = "j17" | IOSTANDARD=LVCMOS33;
NET "O_SEG_N<6>"  LOC = "h14" | IOSTANDARD=LVCMOS33;
NET "O_SEG_N<7>"  LOC = "c17" | IOSTANDARD=LVCMOS33;
NET "O_SEG_N<*>" DRIVE=12 | SLEW=SLOW;
##
## CRAM ----------------------------------------------------------------------
NET "O_MEM_CE_N"     LOC = "r6" | IOSTANDARD=LVCMOS33 | DRIVE=12 | SLEW=FAST;
NET "O_MEM_WE_N"     LOC = "n7" | IOSTANDARD=LVCMOS33 | DRIVE=12 | SLEW=FAST;
NET "O_MEM_OE_N"     LOC = "t2" | IOSTANDARD=LVCMOS33 | DRIVE=12 | SLEW=FAST;
##
NET "O_MEM_BE_N<0>"  LOC = "k5" | IOSTANDARD=LVCMOS33;
NET "O_MEM_BE_N<1>"  LOC = "k4" | IOSTANDARD=LVCMOS33;
NET "O_MEM_BE_N<*>" DRIVE=12 | SLEW=FAST;
##
NET "O_MEM_ADV_N"    LOC = "j4" | IOSTANDARD=LVCMOS33 | DRIVE=12 | SLEW=FAST;
NET "O_MEM_CLK"      LOC = "h5" | IOSTANDARD=LVCMOS33 | DRIVE=12 | SLEW=FAST;
NET "O_MEM_CRE"      LOC = "p7" | IOSTANDARD=LVCMOS33 | DRIVE=12 | SLEW=FAST;
NET "I_MEM_WAIT"     LOC = "f5" | IOSTANDARD=LVCMOS33 | PULLDOWN;
##
NET "O_MEM_ADDR<0>"   LOC = "j1" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<1>"   LOC = "j2" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<2>"   LOC = "h4" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<3>"   LOC = "h1" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<4>"   LOC = "h2" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<5>"   LOC = "j5" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<6>"   LOC = "h3" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<7>"   LOC = "h6" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<8>"   LOC = "f1" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<9>"   LOC = "g3" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<10>"  LOC = "g6" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<11>"  LOC = "g5" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<12>"  LOC = "g4" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<13>"  LOC = "f2" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<14>"  LOC = "e1" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<15>"  LOC = "m5" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<16>"  LOC = "e2" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<17>"  LOC = "c2" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<18>"  LOC = "c1" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<19>"  LOC = "d2" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<20>"  LOC = "k3" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<21>"  LOC = "d1" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<22>"  LOC = "k6" | IOSTANDARD=LVCMOS33;
NET "O_MEM_ADDR<*>" DRIVE=6 | SLEW=FAST;
##
NET "IO_MEM_DATA<0>"  LOC = "l1" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<1>"  LOC = "l4" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<2>"  LOC = "l6" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<3>"  LOC = "m4" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<4>"  LOC = "n5" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<5>"  LOC = "p1" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<6>"  LOC = "p2" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<7>"  LOC = "r2" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<8>"  LOC = "l3" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<9>"  LOC = "l5" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<10>" LOC = "m3" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<11>" LOC = "m6" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<12>" LOC = "l2" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<13>" LOC = "n4" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<14>" LOC = "r3" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<15>" LOC = "t1" | IOSTANDARD=LVCMOS33;
NET "IO_MEM_DATA<*>" DRIVE=6 | SLEW=SLOW | KEEPER;
##
## Flash ---------------------------------------------------------------------
NET "O_FLA_CE_N"     LOC = "r5" | IOSTANDARD=LVCMOS33 | DRIVE=6 | SLEW=SLOW;
##