Activating application-executing device in motor vehicle using controller area network bus, by supplying voltage to protocol controller unit if there is incoming message on bus

摘要

The application-executing device is provided with a protocol controller unit (42) which is supplied with voltage in the event of there being an incoming message on the data-bus (10). The protocol controller unit is preferably activated by the incoming message, which is compared with a reference message associated with the application, and stored in the protocol controller unit. Independent claims are included for a transceiver unit, a system chip unit, and the use of the method or chip unit to activate a device in a motor vehicle.