Infineon Technologies Ag

Stefan Erdmenger

Berndt Gammel

Gerd Dirscherl

Josef Riegebauer

Robin Boch

Till Winteler

Udo Kriebel

A communication apparatus for communication according to a master-slave communication protocol is formed as a slave instance communicating with a master instance via a bus. The master instance is operative to switch the bus into a bus suspend state if no bus activity is present during a predetermined interval. In response to a bus suspend state, the slave instance makes a transition to a slave suspend state. The communication apparatus includes a monitor configured to monitor the bus activity and a transmitter configured to transmit a signal via the bus if the monitor does not recognize any bus activity during part of the predetermined interval and a transition of the slave instance to the slave suspend state is undesirable, wherein the signal is operative to prevent the master instance from switching the bus into the bus suspend state.

Communication in accordance with a master-slave communication protocol

A method for monitoring the correct operations of a data processing device including changing a subsystem from an authorized state to an unauthorized state, executing the partial operating sequence, and resetting any subsystem state from the unauthorized state to the authorized state.

Data processing device and method for monitoring correct operation of a data processing device

Growing community of inventors

Augsburg, Germany

Stefan Erdmenger