摘要:
An apparatus and method are disclosed to combine pad functionality in an integrated circuit. A power, ground, or signal pad is connected to a power, ground, or signal source, respectively. The power, ground, or signal pad is additionally connected to an additional signal source, such as automatic test equipment in a testing environment. By temporarily disconnecting either the power, ground, or signal source, from the functional block within the integrated circuit to which the source is delivered, the same pad may pass in another signal to other portions of the integrated circuit. In the alternative, the same pad may pass in another signal to other portions of the integrated circuit without disconnecting the original signal by coupling the additional signal over the original signal. Further, combining pad functionality enables reuse of an input pad as an output pad for signals originating from within the integrated circuit.
摘要:
A communications device is disclosed that implements a phase-locked-loop to multiply a clock signal provided to a power management unit (PMU) by a variable integer value. Multiplying the PMU clock signal provides a second clock signal where the second clock signal is characterized by a fundamental component with one or more harmonics of the fundamental component that differ from the fundamental component and the one or more harmonics of the PMU clock signal. The fundamental component with one or more harmonics of the second clock signal does not occupy the same communication channel as the transmission communication signal of the communications device. Thus, minimizing the degradation of the transmission communication signal.