A flash programmable microprocessor-based control module is operated in a manner to protect the integrity of event data stored in the programmable memory of the module while permitting authorized manufacturing and field alteration of the programmable memory with a Download and Execute routine. The Download...http://www.google.com.hk/patents/US6804752?utm_source=gb-gplus-share專利 US6804752 - Event data protection method for a flash programmable microprocessor-based control module
