12.9. Authentication requirements

The ITM implements a complete authentication interface. The upper 16 stimulus registers in offsets 0x040 to 0x07C can be used by secure software to generate trace. These upper locations only generate trace packets if secure non-invasive debug is enabled.

All stimulus registers are disabled when non-invasive debug is disabled.

Whether non-invasive debug is enabled or disabled has no effect on the behavior of stimulus registers.

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