Patent ID: 8762586

Claim:
An integrated circuit (IC), comprising: a plurality of pads adapted to communicate signals with a circuit external to the IC; a first mixed signal interface block coupled to a first pad in the plurality of pads, the first mixed signal interface block adapted to receive a first trigger signal from the circuit external to the IC and to provide a second trigger signal; and a second mixed signal interface block coupled to a second pad in the plurality of pads, the second mixed signal interface block adapted to receive and track a first input signal from the circuit external to the IC in a first mode of operation of the IC, and to generate, in response to the second trigger signal, a first output signal based on the first input signal and to provide the first output signal to a digital core of the IC in a second mode of operation of the IC, wherein a power consumption of the IC is lower in the first mode of operation than in the second mode of operation.