The D flip-flop has output
X. Its input has no name, so let's call its input
The JK flip-flop has output
Y. Its inputs also have no names so let's call them
We can then give formulas for the combinational logic inputs of each flip-flop input as follows:
DX = A nand B
JY = X or Y
KY = A nand B
Mano, M. Morris, and Kime, Charles R. Logic and Computer Design Fundamentals. 2nd Edition. Prentice Hall, 2000.
Copyright © 2014 Barry Watson. All rights reserved.