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315-5172: Difference between revisions

From PLD Archive
m Jon moved page SEGA 315-5172 to 315-5172 without leaving a redirect
 
Line 5: Line 5:
*[[Space Harrier (bootleg)]]
*[[Space Harrier (bootleg)]]


== Equations ==
<pre>
/** Inputs **/
Pin 2 = i2;
Pin 3 = i3;
Pin 4 = i4;
Pin 5 = i5;
Pin 6 = i6;
Pin 7 = i7;
Pin 8 = i8;
Pin 9 = i9;
/** Outputs **/
Pin 12 = o12; /**(Combinatorial, Output feedback output, Active low) **/
Pin 13 = o13; /**(Combinatorial, Output feedback output, Active low) **/
Pin 14 = o14; /**(Registered, Output feedback registered, Active low) **/
Pin 15 = o15; /**(Registered, Output feedback registered, Active low) **/
Pin 16 = o16; /**(Registered, Output feedback registered, Active low) **/
Pin 17 = o17; /**(Registered, Output feedback registered, Active low) **/
Pin 18 = o18; /**(Combinatorial, Output feedback output, Active low) **/
Pin 19 = o19; /**(Combinatorial, Output feedback output, Active low) **/
/** Equations **/
!o12 = !i8 & o14;
!o13 = !i5 & o14
    # !i7;
!o14.d =  i3 & i4 & !i9 & o15 & !o17
        # i3 & i4 & !i9 & !o14 & !o17;
o14.oe = OE;
!o15.d =  i9 & o17
        # !i4 & o17
        # !i3 & o17
        # !o14 & o17;
o15.oe = OE;
!o16.d =  i3 & i4 & !i9 & o14
        # !o17;
o16.oe = OE;
!o17.d =  !i2;
o17.oe = OE;
!o18 = i3 & !i6;
!o19 = !i5 & o14;
</pre>
[[Category:SEGA PLD's]]
[[Category:SEGA PLD's]]

Latest revision as of 17:45, 17 May 2025

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Equations

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/** Inputs **/
Pin 2 = i2;
Pin 3 = i3;
Pin 4 = i4;
Pin 5 = i5;
Pin 6 = i6;
Pin 7 = i7;
Pin 8 = i8;
Pin 9 = i9;

/** Outputs **/
Pin 12 = o12; /**(Combinatorial, Output feedback output, Active low) **/
Pin 13 = o13; /**(Combinatorial, Output feedback output, Active low) **/
Pin 14 = o14; /**(Registered, Output feedback registered, Active low) **/
Pin 15 = o15; /**(Registered, Output feedback registered, Active low) **/
Pin 16 = o16; /**(Registered, Output feedback registered, Active low) **/
Pin 17 = o17; /**(Registered, Output feedback registered, Active low) **/
Pin 18 = o18; /**(Combinatorial, Output feedback output, Active low) **/
Pin 19 = o19; /**(Combinatorial, Output feedback output, Active low) **/

/** Equations **/

!o12 = !i8 & o14;

!o13 = !i5 & o14
     # !i7;

!o14.d =  i3 & i4 & !i9 & o15 & !o17
        # i3 & i4 & !i9 & !o14 & !o17;
o14.oe = OE;

!o15.d =  i9 & o17
        # !i4 & o17
        # !i3 & o17
        # !o14 & o17;
o15.oe = OE;

!o16.d =  i3 & i4 & !i9 & o14
        # !o17;
o16.oe = OE;

!o17.d =  !i2;
o17.oe = OE;

!o18 = i3 & !i6;

!o19 = !i5 & o14;