uinfc95.ucf

xilinx 开发板程序

NET CLK		LOC=P9; # CLOCK FROM EXTERNAL OSCILLATOR
#
# LED DRIVER OUTPUTS
NET LED<0>	LOC=P21;
NET LED<1>	LOC=P23;
NET LED<2>	LOC=P19;
NET LED<3>	LOC=P17;
NET LED<4>	LOC=P18;
NET LED<5>	LOC=P14;
NET LED<6>	LOC=P15;
NET LED<7>	LOC=P24;
#
# DATA BITS FROM THE PC PARALLEL PORT
NET PC_D<0>	LOC=P46;
NET PC_D<1>	LOC=P47;
NET PC_D<2>	LOC=P48;
NET PC_D<3>	LOC=P50;
NET PC_D<4>	LOC=P51;
NET PC_D<5>	LOC=P52;
NET PC_D<6>	LOC=P81;
NET PC_D<7>	LOC=P80;
#
# MICROCONTROLLER PINS
NET XTAL1	LOC=P10; # INPUT CLOCK
NET RST		LOC=P45; # ACTIVE-HIGH RESET
NET ALE_	LOC=P20; # ACTIVE-LOW ADDRESS LATCH ENABLE
NET PSEN_	LOC=P13; # ACTIVE-LOW PROGRAM-STORE ENABLE
NET RD_		LOC=P32; # ACTIVE-LOW READ
NET WR_		LOC=P63; # ACTIVE-LOW WRITE (ALSO CONTROLS RAM)
NET AD<0>	LOC=P44; # MULTIPLEXED ADDRESS/DATA BUS
NET AD<1>	LOC=P43;
NET AD<2>	LOC=P41;
NET AD<3>	LOC=P40;
NET AD<4>	LOC=P39;
NET AD<5>	LOC=P37;
NET AD<6>	LOC=P36;
NET AD<7>	LOC=P35;
NET A<0>	LOC=P75; # DEMUXED LOWER BYTE OF ADDRESS
NET A<1>	LOC=P79;
NET A<2>	LOC=P82;
NET A<3>	LOC=P84;
NET A<4>	LOC=P1;
NET A<5>	LOC=P3;
NET A<6>	LOC=P83;
NET A<7>	LOC=P2;
NET A<8>	LOC=P58; # UPPER BYTE OF ADDRESS
NET A<9>	LOC=P56;
NET A<10>	LOC=P54;
NET A<11>	LOC=P55;
NET A<12>	LOC=P53;
NET A<13>	LOC=P57;
NET A<14>	LOC=P61;
NET A<15>	LOC=P34;
NET A16		LOC=P74; # MS address bit of 128K RAM
#
# RAM CONTROL PINS
NET OE_		LOC=P62; # ACTIVE-LOW OUTPUT ENABLE
NET CE_		LOC=P65; # ACTIVE-LOW CHIP ENABLE
#
# THESE ARE FREE PINS THAT DON'T CONNECT TO ANYTHING ELSE
//NET FREE<0>	LOC=P4;
//NET FREE<1>	LOC=P12;
//NET FREE<2>	LOC=P25;
//NET FREE<3>	LOC=P74;
//NET FREE<4>	LOC=P76;
//NET FREE<5>	LOC=P77;