10.1. About the ETM interface
You can connect an external Embedded Trace Macrocell (ETM)
to the ARM720T processor, so that you can perform real-time tracing
of the code that the processor is executing.
In general, little or no glue logic is required to connect
the ETM7 to the ARM720T processor. You program the ETM through a
JTAG interface. The interface is an extension of the ARM TAP controller,
and is assigned scan chain 6.
Note
If you have more than one ARM processor in your system, each
processor must have its own dedicated ETM.
See the ETM7 (Rev 1) Technical Reference Manual for
detailed information about integrating an ETM7 with an ARM720T processor.
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