Iterative Design Examples: Y=3X+C HOMEWORK * For implementing the equation Y=3X+C, where C is a constant, this should follow the same principle as the constant C should be connected to the first cell only. * Thus, we repeat the analysis we did but starting with carry- in connected to the first cell to be C instead of 0. Thus, for implementing Y=3X+1 or 3X+2, the same circuit design used for Y=3X should be used with just connecting the carry-in to 1 and 2 instead of 0. However, for Y=3X+3 we need to reimplement the equations as we considered carry-in=3 don't care. For Y=3X+4 we need 3 bits to represent carry information. So, the whole truth table has to be redone. Arithmetic Functions & Circuits COE 202- Digital Logic Design-KFUPM slide 25