Configuration of bus transceiver

A transceiver, optionally, a bus transceiver as an interface to a network, the transceiver comprising:

• a transmit pin configured to receive a signal from a microcontroller;
• a receive pin configured to transmit a signal to the microcontroller;
• at least one bus pin configured to transmit and receive signalling to or from the network;
• a wake-up detector;
• an acknowledge and/or wake-up generator;
• and
• at least one switch 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 configuration information received at the transmit pin, and
• the receive pin is connected to an acknowledge and/or wake-up generator, which is configured to provide an acknowledge and/or wake-up signal to the receive pin based on a comparison of an actual configuration information stored in the transceiver with the received configuration information from the transmit pin.