Method for protecting configuration data from a data bus transceiver, data bus transceiver and data bus system

A data bus transceiver comprising:

• a storage device for storing configuration data which are provided for comparison with data of data bus messages incoming via a data bus, wherein the data bus transceiver is designed in such a way that a reference checksum of the configuration data is generated by a checksum device and is stored in a storage register for storing the reference checksum, in order to recursively check this reference checksum in at least one operating state of the data bus transceiver, and based on a detected change, to output a wake-up signal.

A method for protecting configuration data of a data bus transceiver which is operable in partial networking, the method comprising:

• providing the configuration data for comparison with data of data bus messages incoming via a data bus,
• generating and storing a reference checksum of the configuration data wherein this reference checksum is checked recursively, and
• based on a detected change, outputting at least one of a wake-up signal or a piece of error information.

A data bus transceiver comprising:

• a storage device for storing configuration data which are provided for comparison with data of data bus messages incoming via a data bus, wherein the data bus transceiver is designed in such a way that a reference checksum of the configuration data is generated by a checksum device and is stored in a storage register for storing the reference checksum, in order to recursively check this reference checksum in at least one operating state of the data bus transceiver, and based on a detected change, to output at least one of a wake-up signal or a piece of error information.