4 Signals of the trace out port

The following table summarizes the trace out port signals.

Table 4-1 Trace out port signals

Name Type Description
traceclk Output Output clock, that the TPA uses to sample the other pins of the trace out port. This signal runs at half the speed of traceclk_in, and data is valid on both edges of this clock.
tracedata[31:0] Output Output data. A system might not connect all the bits of this signal to the trace port pins. The connection depends on the number of pins available and the bandwidth that is required to output trace.
tracectl Output Signal to support legacy TPAs which cannot support formatter operation in continuous mode. Connection of this signal to a pin is optional.

For information on the configuration tie‑off signals, see the Arm® CoreSight™ SoC-600 Configuration and Integration Manual.

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