Extending the ITRON2 specification for MMU equipped processors

Support of MMU equipped processors is important to ITRON. MMU equipped processors can provide software protection from other software. Real-time software that runs directly on ITRON needs protection from software bugs. General purpose software that runs on top of ITRON, e.g. BTRON, needs protection from both software bugs, and malicious software. This paper identifies the areas of the ITRON2 specification which need to be changed, and the issues that need to be resolved to extend the ITRON2 specification for MMU equipped processors. It also presents a proposed extension to the standard that resolves these issues