Patent ID: 6832331
Filing Date: 2004-12-14
Classification: G06F

Abstract:
A system for indicating and determining a master unit from a plurality of logic units, comprising:a first logic unit configured to output a first obey signal and receive a first input signal; a second logic unit configured to output a second obey signal and receive a second input signal, wherein at least one of the first and second logic units includes logic to output its respective obey signal as a time varying signal and wherein at least one of the first and second logic units includes logic to control a phase relationship of the second obey signal relative to the first obey signal in response to at least one of the first and second input signals; and a mastership determination logic unit having logic to determine that the first logic unit is the master unit when only the first obey signal is time varying and to determine that the second logic unit is the master unit when only the second obey signal is time varying, wherein the mastership determination logic unit further including logic to determine that the first logic unit is the master unit when the first and second obey signals are time varying in-phase and to determine that the second logic unit is the master unit when the first and second obey signals are time varying out-of-phase.