Abstract: A circuit includes a microcontroller having a first terminal and a second terminal. The microcontroller is configured to: receive a signal associated with operation of a power converter at the first terminal; adjust a switch control signal at the second terminal responsive to the signal; measure a frequency of the switch control signal; compare the measured frequency responsive to at least one envelope of a set of envelopes to obtain monitoring results; and perform control operations responsive to the monitoring results.

Abstract: In described examples, an integrated circuit includes a first pin, a second pin, a processor, a bus monitor, a clock circuit, and a transceiver. The processor provides to the transceiver and the bus monitor an instruction that indicates an instructed target address, a read/write flag, and a memory address. The transceiver provides to the first pin and the bus monitor a clock signal, and provides to the second pin and the bus monitor a message so that the message includes a messaged target address, the read/write flag, and the memory address. The bus monitor compares the instructed target address to the messaged target address, and provides a signal to the processor in response to the comparison.

Abstract: In described examples, an integrated circuit includes a first pin, a second pin, a processor, a bus monitor, a clock circuit, and a transceiver. The processor provides to the transceiver and the bus monitor an instruction that indicates an instructed target address, a read/write flag, and a memory address. The transceiver provides to the first pin and the bus monitor a clock signal, and provides to the second pin and the bus monitor a message so that the message includes a messaged target address, the read/write flag, and the memory address. The bus monitor compares the instructed target address to the messaged target address, and provides a signal to the processor in response to the comparison.

Abstract: In described examples, an integrated circuit includes a first pin, a second pin, a processor, a bus monitor, a clock circuit, and a transceiver. The processor provides to the transceiver and the bus monitor an instruction that indicates an instructed target address, a read/write flag, and a memory address. The transceiver provides to the first pin and the bus monitor a clock signal, and provides to the second pin and the bus monitor a message so that the message includes a messaged target address, the read/write flag, and the memory address. The bus monitor compares the instructed target address to the messaged target address, and provides a signal to the processor in response to the comparison.

Abstract: A circuit includes a microcontroller having a first terminal and a second terminal. The microcontroller is configured to: receive a signal associated with operation of a power converter at the first terminal; adjust a switch control signal at the second terminal responsive to the signal; measure a frequency of the switch control signal; compare the measured frequency responsive to at least one envelope of a set of envelopes to obtain monitoring results; and perform control operations responsive to the monitoring results.