3.7. Modes of operation of the trace port

The PORTMODE output bus, which is available in ETM7 Rev 1, provides a copy of the contents of bits 17:16 of the ETM control register. This bus allows the trace debug tools to configure how the trace port signals from the ETM (PIPESTAT, TRACEPKT, and TRACESYNC) are mapped onto the trace port pins of the ASIC. The three modes of operation are described in the following sections:

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