3.5.7. Power-Down Status Register

The ETMPDSR characteristics are:

Purpose

Indicates the power-down status of the ETM.

Usage constraints

There are no usage constraints.

Configurations

Always available.

Attributes

See the register summary in Table 3.1 and Table 3.2.

Figure 3.8 shows the ETMPDSR bit assignments.

Figure 3.8. ETMPDSR bit assignments


Table 3.14 lists the ETMPDSR bit assignments.

Table 3.14. ETMPDSR bit assignments

Bit numbersValueFunction
[31:2]0Reserved, RAZ.
[1]0

Sticky Register State. ETM-R4 does not support multiple power domains so this bit is RAZ.

[0]1

ETM Powered Up. The ETM Trace registers are accessible. ETM-R4 does not support multiple power domains so this bit is RAO.


Copyright © 2005, 2007-2009 ARM Limited. All rights reserved.ARM DDI 0367C
Non-Confidential