ce_tff2.pld

Atmel提供的GAL编译工具,对GAL芯片进行编写,以及可转换成机器码

Name      ce_tff2;
Date      9/24/97;
Company   Atmel;
Assembly  None;
Location  None;
Device    f1508plcc84;

Property Atmel {Preassign = Keep};

 pin 83 = clk;
 pin 79 = AR;
 pin 80 = AP;

 pin [8..12] = [C0..C4];

 pinnode = Q0;
 pinnode = Q1;
 pinnode = Q2;
 pinnode = Q3;
 pinnode = Q4;

$Macro TFF_From_CE Q,T,CK,AR,AP ;
 Q.D = !Q;
 Q.ck = CK;
 Q.ce = T;
 Q.ar = AR;
 Q.ap = AP;
$Mend

Field Qo = [Q4..Q0];
Field Co = [C4..C0];

C0 = Qo:'d'0;
C1 = Qo:'d'5;
C2 = Qo:'d'12;
C3 = Qo:'d'21;
C4 = Qo:'d'30;


TFF_From_CE(Q0,'h'1,clk,AR,AP);
TFF_From_CE(Q1,Q0,clk,AR,AP);
TFF_From_CE(Q2,Q1&Q0,clk,AR,AP);
TFF_From_CE(Q3,Q2&Q1&Q0,clk,AR,AP);
TFF_From_CE(Q4,Q3&Q2&Q1&Q0,clk,AR,AP);