Cyclic Reference in DC

Hi,

I have two DCs DC-A & DC-B. I want to use some functions in DC-A in DC-B and some functions used in DC-B in DC-A.

I have already declared DC-B as used DC in DC-A. Now, Can I declare DC-A as used DC in DC B? Such kind of cyclic reference is allowed?

Experts please advice.

Thanks in advance,

Apurva