Patent ID: 8823498

Claim:
A transceiver comprising: a transmit pin configured to receive a signal from a microcontroller; a receive pin configured to transmit a signal to a microcontroller; a bus pin configured to transmit and receive signalling to/from a network; a wake-up detector for selectively waking up the microcontroller connected to the transceiver; and wherein the transceiver includes one or more switches operable to put the transceiver in a first mode of operation; wherein, in the first mode of operation, the transmit pin is connected to the wake-up detector, and the wake-up detector is configured to activate a wake-up code in accordance with a signal received at the transmit pin and upon activation of the wake-up code, the transceiver is configured to monitor the bus pin for a selected wake-up code and when the selected wake-up code is received and matches the activated wake-up code, the transceiver is configured to perform a wake up operation on the microcontroller.