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|| FILE: #0102.PLD|| PROJ: 20111205|| PART: G26CV12-#0102|||| DEV : GAL20V8|||| DESC: DECODER WAIT||||GAL22V10||| INPUT| 1:CLK, 2:PD, 3:F2, 4:S0, 5:VPA, 6:VDA, 7:RES, 8:P2IN, 9:P1IN, 10:P0IN,| 11:P4IN, 13:RDY,|| OUTPUT| 14:P2O, 15:Q0, 16:Q1, 17:Q2, 18:VMA, 19:ALE, 20:GOE,| 21:PHI1, 22:PHI0, 23:P4O|| ACTIVE-LOW: VMA||| SIGNATURE: "0105 "||| P2O -> CLOCK 02 CPU|| CONNETTERE P0IN CON PHI0|| CONNETTERE P1IN CON PHI1|| CONNETTERE P4IN CON P4O|||| Q0 = 8M, Q1 = 4M, Q2 = 2M| Q[2..0] = CLK // Q[2..0] + 1| A = Q2 & F2' || 2MHz| B = Q1 & F2 || 4MHz| PHI0 = (A # B) || FASE 0| P4O = P0IN || FASE 0 RITARDATA|| P0IN -> FASE 0 RITARDO T (PD = 1)|| P4IN -> FASE 0 RITARDO 2T (PD = 0)| P2O = ((P0IN & PD) # (P4IN & PD'))| PHI1 = P2IN' || FASE 1 RITARDATA RISPETTO A PHI2| VMA = ((VDA & RES) # (VPA & RES))| ALE = (RDY & P0IN' & P2IN')| DBEA = (RDY & P2IN' & S0)| DBEB = (RDY & P1IN & S0')| GOE = (DBEA # DBEB)