315-5394

Found on...

• SEGA System C2

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; /* Input */

/* Programmable output pins */

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

/* Output equations */

!B7 = !I2 & !I4 & !I6;
!B6 = !I2 & !I5 & !I6;
 B5 = !I2 & !I6;
 
!B4.d = I1 & !I7
      # I3 & I7
      # I5;

!B3.d = !B4;
!B2.d = !B3;

 B1 =  I3 & !I7 & I8 & !B2 
    #  I1 & I3 & I8 
    #  I1 & I7 & I8 & !B2;

!B0 = !I1 & !I7;