txsys.ucf

比特序列传送模块 把输入的八位比特数据 做循环后每个比特输出 详细请看英文描述

#PACE: Start of Constraints generated by PACE

#PACE: Start of PACE I/O Pin Assignments
NET "busy"  LOC = "P1"  ;
NET "clock"  LOC = "P9"  ;	 #JH2(1 or 2) -> JP14(1)
NET "datain<0>"  LOC = "P13"  ;
NET "datain<1>"  LOC = "P14"  ;
NET "datain<2>"  LOC = "P15"  ;
NET "datain<3>"  LOC = "P17"  ;
NET "datain<4>"  LOC = "P18"  ;
NET "datain<5>"  LOC = "P19"  ;
NET "datain<6>"  LOC = "P20"  ;
NET "datain<7>"  LOC = "P21"  ;
NET "odd_noteven"  LOC = "P37"  ; #JP5(1) -> JP12(3)
NET "reset"  LOC = "P35"  ; #JP7(2) -> JP12(1)
NET "txdata"  LOC = "P2"  ;
NET "write"  LOC = "P36"  ; #JP7(3) -> JP12(2)

#PACE: Start of PACE Area Constraints

#PACE: Start of PACE Prohibit Constraints

#PACE: End of Constraints generated by PACE