Intel Corporation

Daniel Knollmueller

Michael N Derr

Gustavo P Espinosa

Prashant D Chaudhari

Bradley T Coffman

Balaji Vembu

Arthur Jeremy Runyan

Richard D Shannon

Ivan Rodrigo Herrera Mejia

The systems and methods described herein provide the ability to detect a clocking element fault within an IC device and switch to an alternate clock. In response to detection of a fault in a phase-lock-loop (PLL) clocking element, the device may switch to an alternate clock so that error reporting logic can make forward progress on generating error message. The error message may be generated within an Intellectual Property (IP) cores (e.g., IP blocks), and may send the error message from the IP core to a system-on-a-chip (SOC), such as through an SOC Functional Safety (FuSA) error reporting infrastructure. In various examples, the clocking error may also be output to a hardware SOC pin, such as to provide a redundant path for error indication.

IPS SOC PLL monitoring and error reporting

Systems, apparatuses and methods may provide for technology that detects a startup of a system on chip (SoC) and injects, during the startup, one or more domain startup errors into a plurality of domains on the SoC. Additionally, the technology may determine whether the domain startup error(s) were detected during the startup. In one example, the plurality of domains include one or more fabric interfaces.

Functional safety system error injection technology

Growing community of inventors

Phoenix, AZ, United States of America

Daniel Knollmueller