Stmicroelectronics S.r.l.

Stmicroelectronics Application Gmbh

Giuseppe Cavallaro

Fred Rennig

An embodiment electronic system comprises a first device, a second device and a clock generator circuit. The clock generator circuit is configured to provide a clock signal having a selectable frequency. The first device comprises a first processing circuit having coupled therewith a first Ethernet interface, and the second electronic device comprises a second processing circuit having coupled therewith a second Ethernet interface. At least one of the first device and the second device is configured to determine a frequency of the clock signal as a function of an operating parameter of the first device and/or of the second device and/or as a function of a parameter of the frames exchanged between the first device and the second device, and to act on the clock generator circuit to operate the clock generator circuit at the frequency.

Electronic system, corresponding method of operation and electronic device

In an embodiment a microcontroller includes a processing unit and a deserial-serial peripheral interface (DSPI) module, wherein the deserial-serial peripheral interface module is coupleable to a communication bus configured to operate according to a selected communication protocol, wherein the processing unit is configured to read user data intended for inclusion in an outgoing frame encoded according to the selected communication protocol, calculate, as a function of the user data, a cyclic redundancy check (CRC) value intended for inclusion in the outgoing frame, compose the outgoing frame by including the user data and the calculated CRC value into the outgoing frame, produce a DSPI frame encoded according to the selected communication protocol as a function of the outgoing frame and program a data register of the deserial-serial peripheral interface module with the DSPI frame, and wherein the deserial-serial peripheral interface module is configured to transmit the DSPI frame via the communication bus.

Growing community of inventors

Catania, Italy

Giuseppe Cavallaro