3.22.2. Debugger accesses, PFTv1.1 with multiple power implementations

Table 3.92 shows debugger access permissions for multiple power implementations in PFTv1.1. See PTM state definitions, PFTv1.1 with multiple power implementations for the meanings of the column headings.

Table 3.92. Debugger accesses

RegisterPTM state   
No Debug PowerNo Core PowerOS Lock setOtherwise
Trace registersErrorErrorErrorOK[a]
ETMLSRErrorOK/RAZOK/RAZOK/RAZ
ETMLAR[b]Errorunpunpunp
ETMPDSRErrorOKOKOK
ETMOSLSRErrorOKOKOK
ETMOSLARErrorErrorOKOK
ETMOSSRRErrorunpunpunp
ETMDEVID, ETMAUTHSTATUSErrorOKOKOK
ETMITCTRLErrorOKOKOK
Other ManagementErrorOKOKOK
Reserved TraceErrorErrorErrorUNK/SBZP
Reserved ManagementErrorUNK/SBZPUNK/SBZPUNK/SBZP

[a] When ETM_PD is 1, register writes to all Trace registers except certain bits of the ETMCR might be ignored.

[b] ETMLAR is not visible to debugger accesses, so accesses are unpredictable.


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