Patent ID: 6965271
Filing Date: 2005-11-15
Classification: H03L

Abstract:
1. An apparatus comprising: a phase-locked loop; a first register set for holding data defining a mode of operation of the phase-locked loop; coupling means for coupling the first register set to phase-locked loop to cause the same to operate in a mode defined by the data held therein or to receive data defining a new mode of operation; and a second register set for holding data defining a mode of operation of the phase-locked loop, the coupling means being arranged to couple one of the first and second register sets to receive data defining the new mode of operation while the other of the first and second register sets is connected to the phase-locked loop to cause the same to operate in the mode defined by the data in the other register set, and being reconfigurable to change the coupling so that the other register set is coupled to receive data defining a further new mode of operation while the one register set is connected to the phase-locked loop to cause the same to operate in the new mode of operation.