3.11.3. Non-secure state resource
Whether the PTM implements this resource depends only on whether
the processor that implements the PTM also implements the Security
Extensions:
if the processor implements
the Security Extensions then this resource is always implemented,
and is TRUE when the processor is in the Non-secure state
if the processor does not implement the Security
Extensions then this resource is not implemented, and cannot be
used.
If the PTM is enabled, but has not traced any waypoints since
it was powered up, this resource is FALSE and remains FALSE until
the PTM recalculates it when it traces the first waypoint.
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