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1 58 davidgb 
#####################################################
2 
#
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# XSA-3S1000 Board FPGA pin assignment constraints
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#
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#####################################################
6 
#
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# Clocks
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#
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net CLKA          loc=T9  | IOSTANDARD = LVCMOS33 ; # 100MHz
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#net CLKB          loc=P8  | IOSTANDARD = LVCMOS33 ; # 50MHz
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#net CLKC          loc=R9  | IOSTANDARD = LVCMOS33 ; # ??Mhz
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#
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# Push button switches
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#
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#NET SW1_3_N       loc=K2  | IOSTANDARD = LVCMOS33 ; # Flash Block select
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#NET SW1_4_N       loc=J4  | IOSTANDARD = LVCMOS33 ; # Flash Block
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NET SW2_N         loc=E11 | IOSTANDARD = LVCMOS33 ; # active-low pushbutton
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NET SW3_N         loc=A13 | IOSTANDARD = LVCMOS33 ; # active-low pushbutton
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#
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# PS/2 Keyboard
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#
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net PS2_CLK       loc=B16 | IOSTANDARD = LVCMOS33 ;
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net PS2_DAT       loc=E13 | IOSTANDARD = LVCMOS33 ;
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#
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# VGA Outputs
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#
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NET VGA_BLUE<0>   LOC=C9  | IOSTANDARD = LVCMOS33 ;
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NET VGA_BLUE<1>   LOC=E7  | IOSTANDARD = LVCMOS33 ;
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NET VGA_BLUE<2>   LOC=D5  | IOSTANDARD = LVCMOS33 ;
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NET VGA_GREEN<0>  LOC=A8  | IOSTANDARD = LVCMOS33 ;
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NET VGA_GREEN<1>  LOC=A5  | IOSTANDARD = LVCMOS33 ;
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NET VGA_GREEN<2>  LOC=C3  | IOSTANDARD = LVCMOS33 ;
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NET VGA_RED<0>    LOC=C8  | IOSTANDARD = LVCMOS33 ;
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NET VGA_RED<1>    LOC=D6  | IOSTANDARD = LVCMOS33 ;
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NET VGA_RED<2>    LOC=B1  | IOSTANDARD = LVCMOS33 ;
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NET VGA_HSYNC_N   LOC=B7  | IOSTANDARD = LVCMOS33 ;
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NET VGA_VSYNC_N   LOC=D8  | IOSTANDARD = LVCMOS33 ;
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#
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# Manually assign locations for the DCMs along the bottom of the FPGA
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# because PAR sometimes places them in opposing corners and that ruins the clocks.
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#
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INST "u1/gen_dlls.dllint" LOC="DCM_X0Y0";
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INST "u1/gen_dlls.dllext" LOC="DCM_X1Y0";
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# Manually assign locations for the DCMs along the bottom of the FPGA
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# because PAR sometimes places them in opposing corners and that ruins the clocks.
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#INST "u2_dllint" LOC="DCM_X0Y0";
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#INST "u2_dllext" LOC="DCM_X1Y0";
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#
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# SDRAM memory pin assignments
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#
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net SDRAM_clkfb  loc=N8  | IOSTANDARD = LVCMOS33 ;  # feedback SDRAM clock after PCB delays
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net SDRAM_clkout loc=E10 | IOSTANDARD = LVCMOS33 ; # clock to SDRAM
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net SDRAM_CKE    loc=D7  | IOSTANDARD = LVCMOS33 ;  # SDRAM clock enable
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net SDRAM_CS_N   loc=B8  | IOSTANDARD = LVCMOS33 ;  # SDRAM chip-select
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net SDRAM_RAS_N  loc=A9  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_CAS_N  loc=A10 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_WE_N   loc=B10 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_DQMH   loc=D9  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_DQML   loc=C10 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_A<0>   loc=B5  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_A<1>   loc=A4  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_A<2>   loc=B4  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_A<3>   loc=E6  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_A<4>   loc=E3  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_A<5>   loc=C1  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_A<6>   loc=E4  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_A<7>   loc=D3  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_A<8>   loc=C2  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_A<9>   loc=A3  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_A<10>  loc=B6  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_A<11>  loc=C5  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_A<12>  loc=C6  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<0>   loc=C15 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<1>   loc=D12 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<2>   loc=A14 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<3>   loc=B13 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<4>   loc=D11 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<5>   loc=A12 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<6>   loc=C11 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<7>   loc=D10 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<8>   loc=B11 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<9>   loc=B12 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<10>  loc=C12 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<11>  loc=B14 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<12>  loc=D14 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<13>  loc=C16 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<14>  loc=F12 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_D<15>  loc=F13 | IOSTANDARD = LVCMOS33 ;
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net SDRAM_BA<0>  loc=A7  | IOSTANDARD = LVCMOS33 ;
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net SDRAM_BA<1>  loc=C7  | IOSTANDARD = LVCMOS33 ;
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#
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# Flash memory interface
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#
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#net FLASH_A<0>   LOC=N5  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<1>   LOC=K14 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<2>   LOC=K13 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<3>   LOC=K12 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<4>   LOC=L14 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<5>   LOC=M16 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<6>   LOC=L13 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<7>   LOC=N16 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<8>   LOC=N14 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<9>   LOC=P15 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<10>  LOC=R16 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<11>  LOC=P14 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<12>  LOC=P13 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<13>  LOC=N12 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<14>  LOC=T14 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<15>  LOC=R13 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<16>  LOC=N10 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<17>  LOC=M14 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<18>  LOC=K3  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_A<19>  LOC=K4  | IOSTANDARD = LVCMOS33 ;
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#
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#net FLASH_D<0>   LOC=M11 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<1>   LOC=N11 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<2>   LOC=P10 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<3>   LOC=R10 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<4>   LOC=T7  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<5>   LOC=R7  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<6>   LOC=N6  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<7>   LOC=M6  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<8>   LOC=T4  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<9>   LOC=R5  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<10>  LOC=T5  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<11>  LOC=P6  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<12>  LOC=M7  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<13>  LOC=R6  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<14>  LOC=N7  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_D<15>  LOC=P7  | IOSTANDARD = LVCMOS33 ;
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net FLASH_CE_N   LOC=R4  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_OE_N   LOC=P5  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_WE_N   LOC=M13 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_BYTE_N LOC=T8  | IOSTANDARD = LVCMOS33 ;
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#net FLASH_RDY    LOC=L12 | IOSTANDARD = LVCMOS33 ;
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#net FLASH_RST_N  LOC=P16 | IOSTANDARD = LVCMOS33 ;
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#
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# FPGA Programming interface
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#
141 
#net FPGA_D<0>    LOC=M11 | IOSTANDARD = LVCMOS33 ; # shared with FLASH_D0, S1, LED_C
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#net FPGA_D<1>    LOC=N11 | IOSTANDARD = LVCMOS33 ; # shared with FLASH_D1, S7, LED_DP
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#net FPGA_D<2>    LOC=P10 | IOSTANDARD = LVCMOS33 ; # shared with FLASH_D2, S4, LED_B
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#net FPGA_D<3>    LOC=R10 | IOSTANDARD = LVCMOS33 ; # shared with FLASH_D3, S6, LED_A
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#net FPGA_D<4>    LOC=T7  | IOSTANDARD = LVCMOS33 ; # shared with FLASH_D4, S5, LED_F
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#net FPGA_D<5>    LOC=R7  | IOSTANDARD = LVCMOS33 ; # shared with FLASH_D5, S3, LED_G
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#net FPGA_D<6>    LOC=N6  | IOSTANDARD = LVCMOS33 ; # shared with FLASH_D6, S2, LED_E
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#net FPGA_D<7>    LOC=M6  | IOSTANDARD = LVCMOS33 ; # shared with FLASH_D7, S0, LED_D
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#net FPGA_CCLK    LOC=T15 | IOSTANDARD = LVCMOS33 ;
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#net FPGA_DONE    LOC=R14 | IOSTANDARD = LVCMOS33 ;
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#net FPGA_INIT_N  LOC=N9  | IOSTANDARD = LVCMOS33 ;
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#net FPGA_PROG_N        LOC=B3  | IOSTANDARD = LVCMOS33 ;
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#net FPGA_TCK      LOC=C14 | IOSTANDARD = LVCMOS33 ;
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#net FPGA_TDI      LOC=A2  | IOSTANDARD = LVCMOS33 ;
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#net FPGA_TDI_CSN       LOC=R3  | IOSTANDARD = LVCMOS33 ;
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#net FPGA_TDO      LOC=A15 | IOSTANDARD = LVCMOS33 ;
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#net FPGA_TDO_WRN       LOC=T3  | IOSTANDARD = LVCMOS33 ;
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#net FPGA_TMS      LOC=C13 | IOSTANDARD = LVCMOS33 ;
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#net FPGA_TMS_BSY       LOC=P9  | IOSTANDARD = LVCMOS33 ;
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#
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# Status LED
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#
163 
#net S<0>          loc=M6  | IOSTANDARD = LVCMOS33 ; # FPGA_D7, LED_D
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#net S<1>          loc=M11 | IOSTANDARD = LVCMOS33 ; # FPGA_D0, LED_C
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#net S<2>          loc=N6  | IOSTANDARD = LVCMOS33 ; # FPGA_D6, LED_E
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#net S<3>          loc=R7  | IOSTANDARD = LVCMOS33 ; # FPGA_D5, LED_G
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#net S<4>          loc=P10 | IOSTANDARD = LVCMOS33 ; # FPGA_D2, LED_B
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#net S<5>          loc=T7  | IOSTANDARD = LVCMOS33 ; # FPGA_D4, LED_F
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#net S<6>          loc=R10 | IOSTANDARD = LVCMOS33 ; # FPGA_D3, LED_A
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#net S<7>          loc=N11 | IOSTANDARD = LVCMOS33 ; # FPGA_D1, LED_DP
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#
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# Parallel Port
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#
174 
#net PPORT_load    loc=N14 | IOSTANDARD = LVCMOS33 ;
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#net PPORT_clk     loc=P15 | IOSTANDARD = LVCMOS33 ;
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#net PPORT_din<0>  loc=R16 | IOSTANDARD = LVCMOS33 ;
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#net PPORT_din<1>  loc=P14 | IOSTANDARD = LVCMOS33 ;
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#net PPORT_din<2>  loc=P13 | IOSTANDARD = LVCMOS33 ;
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#net PPORT_din<3>  loc=N12 | IOSTANDARD = LVCMOS33 ;
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#
181 
#net PPORT_dout<0> loc=N5  | IOSTANDARD = LVCMOS33 ;
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#net PPORT_dout<1> loc=K14 | IOSTANDARD = LVCMOS33 ;
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#net PPORT_dout<2> loc=K13 | IOSTANDARD = LVCMOS33 ;
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#net PPORT_dout<3> loc=T10 | IOSTANDARD = LVCMOS33 ;
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#
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#net PPORT_d<0>    loc=N14 | IOSTANDARD = LVCMOS33 ; # FLASH_A<8>  / PPORT_LOAD
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#net PPORT_d<1>    loc=P15 | IOSTANDARD = LVCMOS33 ; # FLASH_A<9>  / PPORT_CLK
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#net PPORT_d<2>    loc=R16 | IOSTANDARD = LVCMOS33 ; # FLASH_A<10> / PPORT_DIN<0>
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#net PPORT_d<3>    loc=P14 | IOSTANDARD = LVCMOS33 ; # FLASH_A<11> / PPORT_DIN<1>
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#net PPORT_d<4>    loc=P13 | IOSTANDARD = LVCMOS33 ; # FLASH_A<12> / PPORT_DIN<2>
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#net PPORT_d<5>    loc=N12 | IOSTANDARD = LVCMOS33 ; # FLASH_A<13> / PPORT_DIN<3>
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##net PPORT_d<6>    loc=T14 | IOSTANDARD = LVCMOS33 ; # FLASH_A<14>
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##net PPORT_d<7>    loc=R13 | IOSTANDARD = LVCMOS33 ; # FLASH_A<15>
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#
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#net PPORT_s<3>    loc=N5  | IOSTANDARD = LVCMOS33 ; # FLASH_A<0> / PPORT_DOUT<0>
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#net PPORT_s<4>    loc=K14 | IOSTANDARD = LVCMOS33 ; # FLASH_A<1> / PPORT_DOUT<1>
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#net PPORT_s<5>    loc=K13 | IOSTANDARD = LVCMOS33 ; # FLASH_A<2> / PPORT_DOUT<2>
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#net PPORT_s<6>    loc=T10 | IOSTANDARD = LVCMOS33 ; #            / PPORT_DOUT<3>
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#
200 
########################################################
201 
#
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# XST3.0 pins
203 
#
204 
########################################################
205 
#
206 
# BAR LED
207 
#
208 
#net BAR<1>         loc=L5  | IOSTANDARD = LVCMOS33 ; # bar led 1, PB_A0
209 
#net BAR<2>         loc=N2  | IOSTANDARD = LVCMOS33 ; # bar led 2, PB_A1
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#net BAR<3>         loc=M3  | IOSTANDARD = LVCMOS33 ; # bar led 3, PB_A2
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#net BAR<4>         loc=N1  | IOSTANDARD = LVCMOS33 ; # bar led 4, PB_A3
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#net BAR<5>         loc=T13 | IOSTANDARD = LVCMOS33 ; # bar led 5, PB_A4
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#net BAR<6>         loc=L15 | IOSTANDARD = LVCMOS33 ; # bar led 6,  ETHER_IRQ
214 
#net BAR<7>         loc=J13 | IOSTANDARD = LVCMOS33 ; # bar led 7,  USB_IRQ_N
215 
#net BAR<8>         loc=H15 | IOSTANDARD = LVCMOS33 ; # bar led 8,  IDE_IRQ
216 
#net BAR<9>         loc=J16 | IOSTANDARD = LVCMOS33 ; # bar led 9,  SLOT1_IRQ
217 
#net BAR<10>        loc=J14 | IOSTANDARD = LVCMOS33 ; # bar led 10, SLOT2_IRQ
218 
#
219 
# Push Buttons
220 
#
221 
#net PB1_N          loc=H4  | IOSTANDARD = LVCMOS33 ; # Shared with PB_D15
222 
#net PB2_N          loc=L5  | IOSTANDARD = LVCMOS33 ; # Shared with BAR1, PB_A0
223 
#net PB3_N          loc=N2  | IOSTANDARD = LVCMOS33 ; # Shared with BAR2, PB_A1
224 
#net PB4_N          loc=M3  | IOSTANDARD = LVCMOS33 ; # Shared with BAR3, PB_A2
225 
#
226 
# RS232 PORT
227 
#
228 
net RS232_TXD      loc=J2  | IOSTANDARD = LVCMOS33 ; # RS232 TD pin 3
229 
net RS232_RXD      loc=G5  | IOSTANDARD = LVCMOS33 ; # RS232 RD pin 2
230 
net RS232_CTS      loc=D1  | IOSTANDARD = LVCMOS33 ; # RS232 CTS
231 
net RS232_RTS      loc=F4  | IOSTANDARD = LVCMOS33 ; # RS232 RTS
232 
#
233 
# 16 Bit Peripheral Bus
234 
#
235 
# 5-bit Peripheral address bus
236 
net PB_A<0>        loc=L5  | IOSTANDARD = LVCMOS33 ; # Shared with BAR1, PB2
237 
net PB_A<1>        loc=N2  | IOSTANDARD = LVCMOS33 ; # Shared with BAR2, PB3
238 
net PB_A<2>        loc=M3  | IOSTANDARD = LVCMOS33 ; # Shared with BAR3, PB4
239 
net PB_A<3>        loc=N1  | IOSTANDARD = LVCMOS33 ; # Shared with BAR4
240 
net PB_A<4>        loc=T13 | IOSTANDARD = LVCMOS33 ; # Shared with BAR5
241 
# 16-bit peripheral data bus
242 
net PB_D<0>        loc=P12 | IOSTANDARD = LVCMOS33 ; # Shared with DIPSW1
243 
net PB_D<1>        loc=J1  | IOSTANDARD = LVCMOS33 ; # Shared with DIPSW2
244 
net PB_D<2>        loc=H1  | IOSTANDARD = LVCMOS33 ; # Shared with DIPSW3
245 
net PB_D<3>        loc=H3  | IOSTANDARD = LVCMOS33 ; # Shared with DIPSW4
246 
net PB_D<4>        loc=G2  | IOSTANDARD = LVCMOS33 ; # Shared with DIPSW5
247 
net PB_D<5>        loc=K15 | IOSTANDARD = LVCMOS33 ; # Shared with DIPSW6
248 
net PB_D<6>        loc=K16 | IOSTANDARD = LVCMOS33 ; # Shared with DIPSW7
249 
net PB_D<7>        loc=F15 | IOSTANDARD = LVCMOS33 ; # Shared with DIPSW8
250 
net PB_D<8>        loc=E2  | IOSTANDARD = LVCMOS33 ; # Shared with LED2_A
251 
net PB_D<9>        loc=E1  | IOSTANDARD = LVCMOS33 ; # Shared with LED2_B
252 
net PB_D<10>       loc=F3  | IOSTANDARD = LVCMOS33 ; # Shared with LED2_C
253 
net PB_D<11>       loc=F2  | IOSTANDARD = LVCMOS33 ; # Shared with LED2_D
254 
net PB_D<12>       loc=G4  | IOSTANDARD = LVCMOS33 ; # Shared with LED2_E
255 
net PB_D<13>       loc=G3  | IOSTANDARD = LVCMOS33 ; # Shared with LED2_F
256 
net PB_D<14>       loc=G1  | IOSTANDARD = LVCMOS33 ; # Shared with LED2_G
257 
net PB_D<15>       loc=H4  | IOSTANDARD = LVCMOS33 ; # Shared with LED2_DP, PB1
258 
net PB_RD_N        loc=P2  | IOSTANDARD = LVCMOS33 ; # disk I/O read control
259 
net PB_WR_N        loc=R1  | IOSTANDARD = LVCMOS33 ; # disk I/O write control
260 
#
261 
# IDE Interface
262 
#
263 
net IDE_CS0_N      loc=G15 | IOSTANDARD = LVCMOS33 ; # disk register-bank select
264 
net IDE_CS1_N      loc=G14 | IOSTANDARD = LVCMOS33 ; # disk register-bank select
265 
net IDE_DMACK_N    loc=K1  | IOSTANDARD = LVCMOS33 ; # (out) IDE DMA acknowledge
266 
#net IDE_DMARQ      loc=L4  | IOSTANDARD = LVCMOS33 ; # (in) IDE DMA request
267 
#net IDE_IORDY      loc=L2  | IOSTANDARD = LVCMOS33 ; # (in) IDE IO ready
268 
#net IDE_IRQ        loc=H15 | IOSTANDARD = LVCMOS33 ; # (in) IDE interrupt # shared with BAR8
269 
#
270 
# Ethernet Controller
271 
# Disable if not used
272 
#
273 
net ether_cs_n    loc=G13 | IOSTANDARD = LVCMOS33 ; # (out)Ethernet chip-enable
274 
net ether_aen     loc=E14 | IOSTANDARD = LVCMOS33 ; # (out) Ethernet address enable not
275 
net ether_bhe_n   loc=J3  | IOSTANDARD = LVCMOS33 ; # (out) Ethernet bus high enable
276 
net ether_clk     loc=R9  | IOSTANDARD = LVCMOS33 ; # (in)  Ethernet clock
277 
net ether_irq     loc=L15 | IOSTANDARD = LVCMOS33 ; # (in)  Ethernet irq - Shared with BAR6
278 
net ether_rdy     loc=M2  | IOSTANDARD = LVCMOS33 ; # (in)  Ethernet ready
279 
#
280 
# Expansion slots
281 
#
282 
net slot1_cs_n    loc=E15 | IOSTANDARD = LVCMOS33 ; # (out)
283 
#net slot1_irq     loc=J16 | IOSTANDARD = LVCMOS33 ; # (in) Shared with BAR9
284 
net slot2_cs_n    loc=D16 | IOSTANDARD = LVCMOS33 ; # (out)
285 
#net slot2_irq     loc=J14 | IOSTANDARD = LVCMOS33 ; # (in)     Shared with BAR10
286 
#
287 
# Audio codec
288 
#
289 
#net audio_lrck    loc=R12 | IOSTANDARD = LVCMOS33 ; # (out)
290 
#net audio_mclk    loc=P11 | IOSTANDARD = LVCMOS33 ; # (out)
291 
#net audio_sclk    loc=T12 | IOSTANDARD = LVCMOS33 ; # (out)
292 
#net audio_sdti    loc=M10 | IOSTANDARD = LVCMOS33 ; # (out)
293 
#net audio_sdto    loc=K5  | IOSTANDARD = LVCMOS33 ; # (in)
294 
#
295 
# i2c
296 
#
297 
#net i2c_scl       loc=F5  | IOSTANDARD = LVCMOS33 ; #(out)
298 
#net i2c_sda       loc=D2  | IOSTANDARD = LVCMOS33 ; # (in/out)
299 
#
300 
# USB
301 
#
302 
#NET USB_CLK       LOC=M1  | IOSTANDARD = LVCMOS33 ; # (IN)
303 
#NET USB_IRQ_N     LOC=J13 | IOSTANDARD = LVCMOS33 ; # (IN) Shared with BAR7
304 
#NET USB_SUSPEND   LOC=l3  | IOSTANDARD = LVCMOS33 ; # (IN)
305 
#
306 
# VIDEO DIGITIZER
307 
#
308 
#NET VIDIN_AVID    LOC=    | IOSTANDARD = LVCMOS33 ; # (IN)
309 
#NET VIDIN_CLK     LOC=H16 | IOSTANDARD = LVCMOS33 ; # (IN)
310 
#NET VIDIN_FID     LOC=    | IOSTANDARD = LVCMOS33 ; # (IN)
311 
#NET VIDIN_HSYNC   LOC=    | IOSTANDARD = LVCMOS33 ; # (IN)
312 
#NET VIDIN_IRQ     LOC=    | IOSTANDARD = LVCMOS33 ; # (IN)
313 
#NET VIDIN_VSYNC   LOC=    | IOSTANDARD = LVCMOS33 ; # (IN)
314 
#NET VIDIN_Y<0>    LOC=H14 | IOSTANDARD = LVCMOS33 ; # (IN) Shared with LED1_A
315 
#NET VIDIN_Y<1>    LOC=M4  | IOSTANDARD = LVCMOS33 ; # (IN) Shared with LED1_B
316 
#NET VIDIN_Y<2>    LOC=P1  | IOSTANDARD = LVCMOS33 ; # (IN) Shared with LED1_C
317 
#NET VIDIN_Y<3>    LOC=N3  | IOSTANDARD = LVCMOS33 ; # (IN) Shared with LED1_D
318 
#NET VIDIN_Y<4>    LOC=M15 | IOSTANDARD = LVCMOS33 ; # (IN) Shared with LED1_E
319 
#NET VIDIN_Y<5>    LOC=H13 | IOSTANDARD = LVCMOS33 ; # (IN) Shared with LED1_F
320 
#NET VIDIN_Y<6>    LOC=G16 | IOSTANDARD = LVCMOS33 ; # (IN) Shared with LED1_G
321 
#NET VIDIN_Y<7>    LOC=N15 | IOSTANDARD = LVCMOS33 ; # (IN) Shared with LED1_DP
322 
#
323 
# Timing Constraints
324 
#
325 
NET "CLKA" TNM_NET="CLKA";
326 
TIMESPEC "TS_clk"=PERIOD "CLKA" 10 ns HIGH 50 %;

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