3.5.7. Power-Down Control Register

The ETMPDCR characteristics are:


Indicates when the ETM is used on different domains, the status of the trace registers domain must be on.

Usage constraints

Default ETM single domain.


This register is only useful when the ETM is used in multiple domain.


See the register summary in Table 3-1 on page 3-5 and Table 3-3 on page 3-10.

Figure 3.7 shows the ETMPDCR bit assignments.

Figure 3.7. ETMPDCR bit assignments

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Table 3.14 shows the ETMPDCR bit assignments.

Table 3.14.  ETMPDCR bit assignments

[31:4]-Reserved, RAZ.
[3]Trace power enableWhen HIGH, power to the power domain containing the trace registers must be provided.
[2:0]-Reserved, RAZ.


The trace registers power domain is always on because it is in a single domain by default.

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