top_level.ucf

8 Channel Digital Volt Meter

NET "SP_A_0"        				LOC =  "U19";
NET "SP_A<1>"        				LOC =  "T17";
NET "SP_A<2>"        				LOC =  "R16";
NET "SP_A<3>"        				LOC =  "R17";
NET "SP_A<4>"        				LOC =  "N16";
NET "SP_A<5>"        				LOC =  "M16";
NET "SP_A<6>"        				LOC =  "R19";
NET "SP_A<7>"        				LOC =  "N18";
NET "SP_A<8>"        				LOC =  "K17";
NET "SP_A<9>"        				LOC =  "J17";
NET "SP_A<10>"        			LOC =  "F17";
NET "SP_A<11>"        			LOC =  "H17";
NET "SP_A<12>"        			LOC =  "M18";
NET "SP_A<13>"        			LOC =  "L17";
NET "SP_A<14>"        			LOC =  "E18";
NET "SP_A<15>"        			LOC =  "K18";
NET "SP_A<16>"        			LOC =  "H19";
NET "SP_A<17>"        			LOC =  "L16";
NET "SP_A<18>"        			LOC =  "M17";
NET "SP_A<19>"        			LOC =  "E19";
NET "SP_A<20>"        			LOC =  "F19";
NET "SP_A<21>"        			LOC =  "H18";
NET "SP_A<22>"        			LOC =  "J18";
NET "SP_A<23>"        			LOC =  "L18";

			//   SP_D<15:0>

NET "SP_D<0>"        				LOC =  "V16";
NET "SP_D<1>"        				LOC =  "W15";
NET "SP_D<2>"        				LOC =  "T15";
NET "SP_D<3>"        				LOC =  "D15";
NET "SP_D<4>"        				LOC =  "E15";
NET "SP_D<5>"        				LOC =  "A15";
NET "SP_D<6>"        				LOC =  "A17";
NET "SP_D<7>"        				LOC =  "A18";
NET "SP_D<8>"        				LOC =  "V15";
NET "SP_D<9>"        				LOC =  "T16";
NET "SP_D<10>"        				LOC =  "U15";
NET "SP_D<11>"        				LOC =  "C16";
NET "SP_D<12>"        				LOC =  "A16";
NET "SP_D<13>"        				LOC =  "B17";
NET "SP_D<14>"        				LOC =  "B18";
NET "SP_D<15>"        				LOC =  "F15";

			//   SPRINGBOARD CONTROL SIGNALS

NET "SP_CS0n"   			LOC =  "B19";  //CS0
NET "SP_CS1n"   			LOC =  "G16";  //CS1
NET "SP_WEn" 	  			LOC =  "F18";  //WE
NET "SP_OEn"   				LOC =  "G17";  //OE


//*********************** BUFFERED SIGNALS ****************************

		//   BUFFERED ADDRESS LINES, A<23:0>

NET "A<0>"        				LOC =  "T5";
NET "A<1>"        				LOC =  "W10";
NET "A<2>"        				LOC =  "T9";
NET "A<3>"        				LOC =  "U9";
NET "A<4>"        				LOC =  "T8";
NET "A<5>"        				LOC =  "V7";
NET "A<6>"        				LOC =  "U7";
NET "A<7>"        				LOC =  "T7";
NET "A<8>"        				LOC =  "V6";
NET "A<9>"        				LOC =  "W6";
NET "A<10>"        				LOC =  "V5";
NET "A<11>"        				LOC =  "W5";
NET "A<12>"        				LOC =  "W4";
NET "A<13>"        				LOC =  "W3";
NET "A<14>"        				LOC =  "U6";
NET "A<15>"        				LOC =  "T6";
NET "A<16>"        				LOC =  "R6";
NET "A<17>"        				LOC =  "W7";
NET "A<18>"        				LOC =  "G1";
NET "A<19>"        				LOC =  "U5";
NET "A<20>"        				LOC =  "U4";
NET "A<21>"        				LOC =  "G2";
NET "A<22>"        				LOC =  "G4";

		//   BUFFERED DATA LINES, D<15:0>

NET "D<0>"        				LOC =  "A14";
NET "D<1>"        				LOC =  "B13";
NET "D<2>"        				LOC =  "D12";
NET "D<3>"        				LOC =  "A12";
NET "D<4>"        				LOC =  "C10";
NET "D<5>"        				LOC =  "C8";
NET "D<6>"        				LOC =  "D7";
NET "D<7>"        				LOC =  "A7";
NET "D<8>"        				LOC =  "C13";
NET "D<9>"        				LOC =  "A13";
NET "D<10>"        				LOC =  "B12";
NET "D<11>"        				LOC =  "D10";
NET "D<12>"        				LOC =  "C9";
NET "D<13>"        				LOC =  "B8";
NET "D<14>"        				LOC =  "C7";
NET "D<15>"        				LOC =  "B7";

		//   BUFFERED CONTROL SIGNALS


NET "OEn"        				LOC =  "D14";  //MEM_OE


//**************   2.5 MHz System Clock (From ADS7870) ****************
	
NET "CCLK"        				LOC =  "D11"; //Global Clock 1
	

//***************  Burr Brown ADS7870 A/D SIGNALS  ********************


NET "OSC_CNTRL"      				LOC =  "V13";  //OSC ENABLE
NET "BUSY"      	  			LOC =  "T14";  //BUSY
NET "CONVERT"       				LOC =  "W14";  //CONVERT
NET "AD_CHIP2_ENn"        			LOC =  "U10";  //CS
NET "RISE_FALL"      				LOC =  "U11";  //RISE/FALLn
NET "Dout"      				LOC =  "T10";  //Dout
NET "Din"      				LOC =  "W11";  //Din
NET "SCLK"     				LOC =  "W12";  //SClk
NET "RESET_ADn"      				LOC =  "R14";  //ADS7870 Reset
//NET "AD_D0"      				LOC =  "U12";  //IO0
//NET "AD_D1"      				LOC =  "T11";  //IO1
//NET "AD_D2"      				LOC =  "U13";  //IO2
//NET "AD_D3"      				LOC =  "T12";  //IO3


//**********************     LEDS        ****************************

NET "led1_sel"       			 	LOC =  "G3";
NET "led2_sel"       			 	LOC =  "F4";
NET "led3_sel"       				LOC =  "F3";
NET "led4_sel"       				LOC =  "F5";



//**********************     BUTTONS      ****************************

NET "reset_button"   				LOC =  "K4";





//**********************     SRAM      ****************************

NET "SRAM_LOW_BYTEn"        		LOC =  "K3";  //LBn
NET "SRAM_UPPER_BYTEn"       		LOC =  "J3";  //UBn
NET "RWn"     			LOC =  "J2";  //RW
NET "SRAM_CS1n"        			LOC =  "K2";  //CE


//**********************     FLASH      ****************************


NET "FLASH_CS0n"        		LOC =  "E14"; //CE
NET "FLASH_WR_PROTECT"        	LOC =  "H2";  //WP/ACC
NET "RESET_MEMn"		LOC = "T13";  //Memory Reset

NET "busy_test"			LOC =  "E1";

NET "CHIP3_EN"        		LOC =  "M3";

NET "IO13"			LOC = "E2";

#PINLOCK_END