B22-07

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Equations[edit]

/** Inputs **/
Pin	1 = FC7;
Pin	2 = A23;
Pin	3 = A22;
Pin	4 = A21;
Pin	5 = A20;
Pin	6 = A19;
Pin	7 = A18;
Pin	8 = A17;
Pin	9 = A16;
Pin	10 = AS;
Pin	11 = UDS;
Pin	13 = LDS;
Pin	14 = RW;

/** Outputs **/
Pin	15 = o15; /**(Combinatorial, Output feedback output, Active high) **/
Pin	16 = ROM0; /**(Combinatorial, Output feedback output, Active low) **/
Pin	17 = ROM1; /**(Combinatorial, Output feedback output, Active low) **/
Pin	18 = ROM2; /**(Combinatorial, Output feedback output, Active low) **/
Pin	19 = SCN; /**(Combinatorial, Output feedback output, Active low) **/
Pin	20 = OBJ; /**(Combinatorial, Output feedback output, Active low) **/
Pin	21 = IO; /**(Combinatorial, Output feedback output, Active low) **/
Pin	22 = MDTACK; /**(Combinatorial, Output feedback output, Active low) **/

/** Equations **/

!ROM0 = FC7 & !A23 & !A22 & !A21 & !A20 & !A19 & !A18 & !A17 & !AS & !UDS & RW
     # FC7 & !A23 & !A22 & !A21 & !A20 & !A19 & !A18 & !A17 & !AS & !LDS & RW;

!ROM1 = FC7 & !A23 & !A22 & !A21 & !A20 & !A19 & !A18 & A17 & !AS & !UDS & RW
     # FC7 & !A23 & !A22 & !A21 & !A20 & !A19 & !A18 & A17 & !AS & !LDS & RW;

!ROM2 = FC7 & !A23 & !A22 & !A21 & !A20 & !A19 & A18 & !AS & !UDS & RW
     # FC7 & !A23 & !A22 & !A21 & !A20 & !A19 & A18 & !AS & !LDS & RW;

!SCN = FC7 & A23 & A22 & !A21 & !A20 & !AS;

!OBJ = FC7 & A23 & A22 & !A21 & A20 & !AS;

!IO = FC7 & !A23 & !A22 & A21 & A20 & A19 & A18 & !A17 & !AS
     # FC7 & !A23 & !A22 & A21 & A20 & A19 & !A18 & A16 & !AS
     # FC7 & !A23 & !A22 & A21 & A20 & A19 & A17 & !A16 & !AS;

!MDTACK = FC7 & !A23 & !A22 & A21 & A20 & A19 & A18 & !A17 & !AS 
     # FC7 & !A23 & !A22 & A21 & A20 & A19 & !A18 & A16 & !AS 
     # FC7 & !A23 & !A22 & A21 & A20 & A19 & A17 & !A16 & !AS 
     # FC7 & !A23 & !A22 & !A21 & A20 & !A19 & !A18 & !AS & !UDS
     # FC7 & !A23 & !A22 & !A21 & !A20 & !A19 & !AS & !UDS & RW
     # FC7 & !A23 & !A22 & !A21 & A20 & !A19 & !A18 & !AS & !LDS
     # FC7 & !A23 & !A22 & A21 & !A20 & !A19 & !A18 & !AS & !UDS & !LDS
     # FC7 & !A23 & !A22 & !A21 & !A20 & !A19 & !AS & !LDS & RW;