I am assigned to design an adder out of 2 style of adder [CLA for low 54 bits] and CSA for higher 53 bits]. Does anyone has experience on hybrid arrays like these. I would like to ask a couple of questions.
Thanks,
Mike

 

question: How do I carry the output of the lower bits [CLA], i.e., Cout to the upper bits [CSA] so that two pieces of the adder work in parallel for speed purposes?

Thanks,