About The Ahb Trace Macrocell Interface - ARM Cortex-M3 Technical Reference Manual

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AHB Trace Macrocell Interface
16.1

About the AHB trace macrocell interface

16-2
The AHB Trace Macrocell (HTM) interface enables a simple connection of the AHB
trace macrocell to the processor. It provides a channel for the data trace to the HTM.
To use the HTM interface, the trace level must be set to level 3 before implementation.
TRCENA must also be set to 1 before you enable the HTM to enable the HTM port to
supply trace data.
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