02-26

Found on...

• All American Football

Equations

/**********************************************************************/
/*All American Football U85 (02-26)                                   */
/*control signals for master video data latches                       */
/*also used for security                                              */
/**********************************************************************/

/** Inputs **/

PIN     1   = i1;
PIN     2   = i2;
PIN     3   = i3;
PIN     4   = i4;
PIN     5   = i5;
PIN     6   = i6;
PIN     7   = i7;
PIN     8   = i8;
PIN     9   = i9;
PIN     11  = i11;

/** Outputs **/

PIN    12   = o12;
PIN    13   = o13;
PIN    14   = o14;
PIN    15   = o15;
PIN    16   = o16;
PIN    17   = o17;
PIN    18   = o18;
PIN    19   = o19;

/** Logic Equations **/

/* toggle latch with reset */
/* toggle on falling edge of o13, reset when i11 is low */
/* o18 and o13 are state (o13 is toggle output) */
o18 = !o13 & o14 & i11 #
      o18 & !o14 & i11;

o13 = o13 & o14 & i11 #
      o18 & !o14 & i11;


o12 = !i9 # i5  # i4  # i2  # i1 # o18 & i11 & i8;

o14 = !i9  # !i8  # i5  # i4  # i1 # i3 & i2;

o15 = !i8  # i5  # i4  # i2  # i1 # !o18 & i9  # !i11 & i9;

o16 = !i9  # i5  # i4  # i3  # i1 # o18 & i11 & i8;

o17 = !i8 # i5  # i4  # i3  # i1 # !o18 & i9  # !i11 & i9;

o19 = !i5 # !i4 # i1 # i6 & i3 # !i6 & i2;