Trigger Implementation in the KLOE Experiment

The KLOE detector at present under operation at the Frascati phi-factory DAΦΝE is a general-purpose detector for the study of CP violationin the neutral kaon system. The KLOE trigger uses signals from both the electromagnetic calorimeterand the central drift chamber. Within 150 ns after an interaction the calorimeterand the drift chamber provide a set of signals which form the basis of the trigger decision. The design of the modules providing the trigger decision for each sub-detector, the final trigger decision together with the modules for distribution and synchronization in the experiment is presented. Particular emphasis will be given to the presentation of the use of modern design methodologies that could be also implemented for the realization of electronics for LHC