Clocking system for a computer performance monitoring device

摘要

A hardware monitor interface unit (HMIU) is coupled to a data processing system. Programmable hit matrices (PHM's) in the HMIU store information which is compared with information from the data processing system. The PHM's generate "hit" signals indicating comparison. These "hit" signals are received by monitors coupled to the HMIU which are used to compile the data processing system performance data. Appartus in the HMIU generates clocking signals enabling the information to be received by the HMIU and generates strobing signals to be used for timing the "hit" signals and other control signals received by the monitors.