20130195235 | METHOD AND APPARATUS FOR SWITCHING CLOCK FREQUENCY IN A SYSTEM-IN-PACKAGE DEVICE - An apparatus includes a first clock source, a second clock source and circuitry configured to supply a clock signal to a circuit. The circuitry operates to change the clock signal from one frequency to another different frequency. This change is made in a manner whereby no clock signal is supplied during a period of time when the change from the one frequency to the another different clock frequency is being made. | 08-01-2013 |