My ongoing PhD research is in the area of asynchronous electronics. My particular specialism within this area is Asynchronous Circuit Design. I am currently working on the instruction prefetch unit of the AMULET3 microprocessor, which is an asynchronous embedded microprocessor being developed as part of the ESPRIT ATOM project here at Manchester. This instruction prefetch unit has a branch target cache to predict the speculative direction of the branch instrcution and this is detailed in my MPhil thesis.