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TRCPDCR, PowerDown Control Register

The TRCPDCR characteristics are:

Purpose

Requests the system to provide power to the trace unit.

Configuration

This register is present only when FEAT_ETE is implemented and FEAT_TRC_EXT is implemented. Otherwise, direct accesses to TRCPDCR are RES0.

Attributes

TRCPDCR is a 32-bit register.

Field descriptions

313029282726252423222120191817161514131211109876543210
RES0PURES0

Bits [31:4]

Reserved, RES0.

PU, bit [3]

Power Up Request.

PUMeaning
0b0

The system can remove power from the trace unit core power domain, or requests for power to the trace unit core power domain are implemented outside of the trace unit.

0b1

The system must provide power to the trace unit core power domain.

This field is RES0.

Bits [2:0]

Reserved, RES0.

Accessing TRCPDCR

External debugger accesses to this register are unaffected by the OS Lock.

TRCPDCR can be accessed through the external debug interface:

ComponentOffsetInstance
ETE0x310TRCPDCR

This interface is accessible as follows:


3005/0907/2022 1517:5808; 21c5a6dd0fdaf10a712e2f2d6fffbdbd66d4d96fb0421fa9a8865165f9b91af9b4a566111f866305

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