Difference between revisions of "M72 A-3D"
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Revision as of 20:15, 19 February 2021
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/** Inputs **/ Pin 1 = A19; Pin 2 = A18; Pin 3 = A17; Pin 4 = A16; Pin 5 = A15; Pin 6 = A14; Pin 7 = M_IO; Pin 8 = DBEN; Pin 9 = TNSL; Pin 11 = BRQ; /** Outputs **/ Pin 12 = BUFDBEN; /**(Combinatorial, No output feedback, Active low) **/ Pin 13 = BUFCS; /**(Combinatorial, Output feedback output, Active high) **/ Pin 14 = OBJ_P; /**(Combinatorial, Output feedback output, Active low) **/ Pin 15 = CHARA_P; /**(Combinatorial, Output feedback output, Active low) **/ Pin 17 = CHARA; /**(Combinatorial, Output feedback output, Active low) **/ Pin 18 = SOUND; /**(Combinatorial, Output feedback output, Active low) **/ Pin 19 = SDBEN; /**(Combinatorial, No output feedback, Active low) **/ /** Equations **/ !BUFDBEN = A19 & A18 & !A17 & !A16 & !A15 & !A14 & M_IO & !DBEN & TNSL; BUFDBEN.oe = vcc; BUFCS = !A19 & TNSL # !A18 & TNSL # A17 & TNSL # A16 & TNSL # A15 & TNSL # A14 & TNSL # !M_IO & TNSL; BUFCS.oe = vcc; !OBJ_P = A19 & A18 & !A17 & !A16 & A15 & !A14 & M_IO; OBJ_P.oe = vcc; !CHARA_P = A19 & A18 & !A17 & !A16 & A15 & A14 & M_IO; CHARA_P.oe = vcc; !CHARA = A19 & A18 & !A17 & A16 & M_IO; CHARA.oe = vcc; !SOUND = A19 & A18 & A17 & !A16 & M_IO; SOUND.oe = vcc; !SDBEN = A19 & A18 & A17 & !A16 & M_IO & !DBEN & !BRQ; SDBEN.oe = vcc;