Circuit device, real-time clocking device, electronic apparatus, and vehicle

Abstract

A circuit device, a real-time clocking device, an electronic apparatus, and a vehicle are disclosed. The circuit device includes a processing unit that detects occurrence of an internal event of the circuit device, a storage unit, and a clocking unit that generates clocking data which is real-time clock information on the basis of an oscillation signal generated using a resonator. The processing unit stores specific information on the internal event and the clocking data when the occurrence of the internal event is detected, in the storage unit when the occurrence of the internal event is detected.

Description

technical field [0001] The present invention relates to a circuit device, a real-time clock device, electronic equipment, a mobile body, and the like. Background technique [0002] There is known a real-time clock device capable of continuously keeping time (measurement of real time) by operating with a backup power source such as a battery even when the main power source of the system is off. Some real-time clock devices have a time-stamp function that takes the occurrence of an external event as a trigger to time-stamp it. That is, timekeeping data (time stamp) at a time point at which a signal indicating occurrence of an external event is input from the outside of the real-time clock device via a terminal is recorded in a memory or the like. [0003] As a technique related to an internal event, there is a technique disclosed in Patent Document 1, for example. In Patent Document 1, a real-time clock device includes: an oscillation stop detection circuit; a power supply v...

AI Technical Summary

Problems solved by technology

However, there is a problem that the sequence of internal events cannot be understood

For example, when you want to determine the cause of an event, if you don't know the sequence of internal events, you may not be able to determine the cause of the event

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