SR Flip Flop and D Flip Flop

Question

I know this isn't really a programming question, but it is definitely computer related and someone might know this.

How do you construct a SR flip-flop with a D flip-flop and other logic gates?

I understand that ultimately, what you want is logic gates (with S and R as inputs) connecting in to the D input of the D flip-flop, but I am not quite sure how to figure out which logic gates.

Thanks!

Answer 1

You wouldn't normally construct an SR from a D. You'd typically construct an SR from a pair of cross-connect NANDs, something like this:

You can do the job with NORs as well, of course.