Nxp B.v.

Stmicroelectronics International N.v.

Alma Mater Studiorum-Universitá Di Bologna

Davide Rossi

Jose De Jesus Pineda De Gyvez

Hamed Fatemi

Elio Guidetti

Fabio Giuseppe De Ambroggi

Luca Benini

Alessandro Nadalini

Manuele Rusci

Riccardo Tedeschi

Filippo Grillotti

Elisabetta Farella

Apparatuses, systems, and methods for implementing temporal lockstep for error detection utilizing a single processor core are provided. For example, a processor core includes a pipeline with an instruction fetch circuit and an instruction decode and execute circuit. The instruction decode and execute circuit comprises a controller including a finite state machine with a plurality of states to control the processor core. A voting circuit is provided to vote on a control signal to control the finite state machine for transitioning from a current state to a next state. The processor core, based at least on the plurality of states of the finite state machine, is configured to: execute the first dummy instruction to generate a first dummy result; store the first dummy result in a first dummy buffer; execute the first real instruction to generate a first real result; compare the results to identify an error.

Temporal lockstep

A technique for managing power in an embedded processing system includes generating a workload model for the embedded processing system in response to a control signal, an event status signal, and a reference clock signal. The control signal is received from a peripheral device. The event status signal is received from an event processor configured to control execution of tasks by a processor core of the embedded processing system. The technique includes providing power configuration information to the processor core. The power configuration information corresponds to an operating point selected based on the control signal, the event status signal, the reference clock signal, the workload model, and a predetermined energy model.

Event-based power manager

Growing community of inventors

Bologna, Italy

Davide Rossi