6.9.2. Disabling trace

When TraceEnable becomes inactive, tracing stops and the pipeline status changes to Wait (WT) while the FIFO drains. When there is no data left in the FIFO the pipeline status changes to Trace Disabled (TD). This enables the TPA to suppress tracing, and so improve the trace buffer utilization.

Note

Trace disabled cycles can correspond to wait cycles. In cycle-accurate tracing it might be necessary for the TPA to capture these cycles. For more information see Cycle-accurate tracing.

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