M72 R-3A
From
Found on...[edit]
Equations[edit]
/** Inputs **/ Pin 1 = COD12; Pin 2 = COD11; Pin 3 = BANK; Pin 4 = DBEN; Pin 5 = M_IO; Pin 6 = A19; Pin 7 = A18; Pin 8 = A17; Pin 9 = A16; /** Outputs **/ Pin 12 = LS245_EN; /**(Combinatorial, No output feedback, Active low) **/ Pin 13 = ROM1_CE; /**(Combinatorial, Output feedback output, Active low) **/ Pin 14 = ROM2_CE; /**(Combinatorial, Output feedback output, Active low) **/ Pin 17 = RAM_CS2; /**(Combinatorial, Output feedback output, Active high) **/ Pin 18 = S; /**(Combinatorial, Output feedback output, Active high) **/ Pin 19 = nS; /**(Combinatorial, No output feedback, Active high) **/ /** Equations **/ !LS245_EN = !DBEN & M_IO & !A19 & !A18 # !DBEN & M_IO & !A19 & !A17 # !DBEN & M_IO & A19 & A18 & A17 & A16; !ROM1_CE = M_IO & !A19 & !A18 & !A17; !ROM2_CE = M_IO & !A19 & !A18 & A17 # M_IO & A19 & A18 & A17 & A16; RAM_CS2 = M_IO & !A19 & A18 & !A17; S = COD11; nS = !COD11;