OpenTitan _is_ a microcontroller, just one with a _lot_ of security hardware (and security proofs). It's intended to be integrated into a larger SoC and used f

OpenTitan _is_ a microcontroller, just one with a _lot_ of security hardware (and security proofs). It's intended to be integrated into a larger SoC and used for things like secure boot, though you could certainly fab it with its own RAM and GPIO and use it standalone.