3.20.2. Debugger accesses, PFTv1.0 with multiple power implementations

Table 3.86 shows debugger access permissions for full tracing implementations in PFTv1.0. See PTM state definitions, PFTv1.0 with multiple power implementations for the meanings of the column headings.

Table 3.86. Debugger accesses

RegisterPTM state
No Debug PowerNo Core PowerSticky State SetOS Lock SetOtherwise
Trace registersErrorErrorErrorErrorOK[a]
ETMLSRErrorOK/RAZOK/RAZOK/RAZOK/RAZ
ETMLAR[b]ErrorWIWIWIWI
ETMPDSRErrorOKOKOKOK
ETMOSLSRErrorOKOKOKOK
ETMOSLARErrorunpOKOKOK
ETMOSSRRErrorunpunpOKunp
ETMDEVID, ETMAUTHSTATUSErrorOKOKOKOK
Other ManagementErrorOKOKOKOK
Reserved TraceErrorErrorErrorErrorUNK/SBZP
Reserved ManagementErrorUNK/SBZPUNK/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 writes are ignored.


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