3.13. Access permissions for ETMv3.5, multiple power domains

This section describes register access permissions for an ETM that follows version 3.5 or later of the ETM protocol, where the processor and ETM are implemented in different power domains.

Note

In ETMv3.5, for all multiple power implementations, bit [1] of ETMSR must be polled before saving or restoring state. See ETM Status Register, ETMSR, ETMv1.1 and later.

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