11.8.39 OS Lock Access Register

The TRCOSLAR sets and clears the OS Lock, to lock out external debugger accesses to the Cortex®‑R8 processor ETM registers.

Usage constraints
There are no usage constraints.
Available in all configurations.

Register number: 192

Base offset 0x300


Type: WO

Reset: -

The following figure shows the TRCOSLAR bit assignments.

Figure 11-48 TRCOSLAR bit assignments
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The following table shows the TRCOSLAR bit assignments.

Table 11-61 TRCOSLAR bit assignments

Bits Name Function
[31:1] - Reserved. RAZ/WI.
[0] OSLK

OS Lock key value:

0b0Unlock the OS Lock.
0b1Lock the OS Lock.
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