C10.42 OS Lock Status Register

The TRCOSLSR characteristics are:

Purpose
Returns the status of the OS Lock.
Usage constraints
There are no usage constraints.
Configurations
Available in all configurations.
Attributes
See C10.1 ETM register summary.
Figure C10-41 TRCOSLSR bit assignments
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[31:4]
TRCRSCTLRn
OSLM[1], [3]

OS Lock model [1] bit. This bit is combined with OSLM[0] to form a two-bit field that indicates the OS Lock model is implemented.

The value of this field is always 0b10, indicating that the OS Lock is implemented.

nTT, [2]
This bit is RAZ, that indicates that software must perform a 32-bit write to update the TRCOSLAR.
OSLK, [1]

OS Lock status bit:

0OS Lock is unlocked.
1OS Lock is locked.
OSLM[0], [0]

OS Lock model [0] bit. This bit is combined with OSLM[1] to form a two-bit field that indicates the OS Lock model is implemented.

The value of this field is always 0b10, indicating that the OS Lock is implemented.

The TRCOSLSR can be accessed through the external debug interface, offset 0x304.

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