GPIOs: Critical IP for Functional Safety Applications White Paper

GPIO IP must support ISO 26262 compliance as Safety Element out of Context (SEooC). Safety mechanisms and diagnostics must be defined and validated at IP and SoC levels. This white paper details required architectures and verification methods.

What You Will Learn:

• Why GPIOs must be treated as safety-related logic and how they fit into your SoC's functional safety framework under ISO 26262
• Key internal safety mechanisms — including resistive pull-up/pull-down, voltage clamping (ESD protection), and power-on reset — that can be built into GPIO IP
• How external safety mechanisms such as monitored outputs and loopback test patterns can detect faults at the system level-
• What safety work products — FMEDA, safety manuals, and DFMEA — SoC integrators need to achieve their target ASIL and accelerate safe SoC development