B53-15

Found on ...

• The New Zealand Story (PCB 2)

Equations

* Dedicated input pins */

pin 1   = I0; /* Input */
pin 2   = I1; /* Input */
pin 3   = I2; /* Input */
pin 4   = I3; /* Input */
pin 5   = I4; /* Input */
pin 6   = I5; /* Input */
pin 7   = I6; /* Input */
pin 8   = I7; /* Input */
pin 9   = I8; /* Unused input */
pin 11  = I9; /* Input */

/* Programmable output pins */

pin 12  = B0; /* Combinatorial output */
pin 13  = B1; /* Combinatorial output */
pin 14  = B2; /* Combinatorial output */
pin 15  = B3; /* Input */
pin 16  = B4; /* Input */
pin 17  = B5; /* Unused input */
pin 18  = B6; /* Input */
pin 19  = B7; /* Combinatorial output */

/* Output equations */

!B7 =  I0 & !I1 &  I2 &  I3 &  I4 &  I5 & !I7 & !I9 &  B6;
!B2 =  I6;
 B1 = !I4 &  I5 & !B3 & !B4;
!B0 = !I4 &  I5 & !B3 & !B4;