Method, apparatus and trace module for generating timestamps

摘要

A trace module generates timestamps while tracing characteristics of a data processing apparatus or processing is performed by the data processing apparatus. When a predetermined event occurs, a timestamp request flag is set to indicate that a timestamp request is pending. Upon generation of a following trace packet, it is determined whether the timestamp request flag indicates that a timestamp request is pending, and if a request is pending then a timestamp is generated corresponding to the following trace packet, and the timestamp request flag is set to indicate that there is no pending timestamp request.