Patent ID: 6957135
Filing Date: 2005-10-18
Classification: G11C

Abstract:
1. An electronic control system that enters an operation period from turning on of operating electric power to turning off of the operating electric power and makes both a non-volatile memory and a standby RAM execute storing of continuous storing target data, wherein in the non-volatile memory data is electrically erasable, wherein the standby RAM is a memory and is continuously supplied with data-storing electric power for continuously storing data, and wherein the continuous storing target data needs to be continuously stored even while the operating electric power is turned off and has a value that is updated as advancing to a given change direction with at least one of increasing and decreasing based on given regularity, the electronic control system comprising: determining means for executing, when a given operation period is started due to turning on of the operating electric power, a determination of whether a value of the continuous storing target data in the standby RAM advances to the given change direction further than a value of the continuous storing target data in the non-volatile memory; and detecting means for detecting, when the determination executed by the determining means is affirmed, that storing of the continuous storing target data in the non-volatile memory is not completed for a former operation period preceding to the given operation period.