Based on the free instruction set architecture RISC-V, the Fraunhofer Institute for Microelectronic Circuits and Systems has developed a processor that enables trustworthy embedded artificial intelligence. A separate crypto unit ensures security.
article (in German/auf Deutsch): https://www.elektronikpraxis.vogel.de/fraunhofer-ims-vertrauenswuerdige-eingebettete-ki-mit-risc-v-a-874220/