The facilities provided by the ETM depend on design choices made by the manufacturer. Also, some features used by RealView^® Debugger depend on the support provided by the Trace Port Analyzer (TPA) you are using. RealView Debugger automatically detects which facilities are implemented by the ETM and the TPA.

RealView Debugger enables or disables ETM configuration settings depending on whether they are available on your target. Where a value is fixed because of a target-specific restriction, the value is displayed in the Configure ETM dialog box, but the setting to amend it is disabled. However, there are facilities that might not be detected, and there are some optional features that cannot be autodetected. For example, if the FIFOFULL logic is present but not connected to the processor, the ETM does report that FIFOFULL logic is present, but the FIFOFULL logic does not operate.

You use the Configure ETM dialog box to configure the ETM behavior. The settings you configure in this dialog box apply to any tracing you perform, whatever trace capture criteria you set and whatever the number of trace captures you perform

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