TRCPDCR, Power Down Control Register
The TRCPDCR request to the system power controller to keep the ETM trace unit powered up.
Bit field descriptions
Figure D8-50 TRCPDCR bit assignments
- RES0, [31:4]
- PU, 
Powerup request, to request that power to the ETM trace unit and access to the trace registers is maintained:
Power not requested.
This bit is reset to 0 on a trace unit reset.
- RES0, [2:0]
Bit fields and details not provided in this description are architecturally defined. See the Arm® Architecture Reference Manual Armv8, for Armv8-A architecture profile.
The TRCPDCR can be accessed through the external debug interface, offset