Consider a 6-bit adder with an accumulator, as in Figure 12-5. Suppose the X register contains a number from a previous calculation. We do not want this number. Instead, we want X to equal 3 x Y. (X = x5x4x3x2x1x0 and Y = y5y4y3y2ylyo.) On the timing diagram, give values for Ad and CirN so that we will have X = 3 x Y held in the accumulator. CLK Ad ClrN FIGURE 12-5 n-Bit Parallel Adder with Accumulator O Cengage Learning 2014 Accumulator ... Register CE CE A CE D CE Ad -CLK -ClrN Full Adder Full Adder Full Adder Full Adder