8.12.3. Supported modes of operation

The formatter within the TPIU supports three basic modes of operation:-

Bypass

IDs are not incorporated and raw trace data is emitted. It is assumed that the trace source is not changing. This requires the use of TRACECTL.

Normal

Typical operation with capture devices that require use of a TRACECTL pin.

Continuous

An extension of normal mode except when the control pin would normally indicate no data to be captured, there is data emitted that shows this fact. Also, triggers are embedded into the data stream because they cannot be indicated otherwise.

See the CoreSight Architecture Specification for more information on these modes.

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