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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 the register summary in Table 13.3.

Figure 13.43 shows the TRCOSLSR bit assignments.

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Table 13.44 shows the TRCOSLSR bit assignments.

Table 13.44. TRCOSLSR bit assignments
Bits Name Function
[31:4] - TRCRSCTLRn
[3] OSLM[1]

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.

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

OS Lock status bit:

0

OS Lock is unlocked.

1

OS Lock is locked.

[0] OSLM[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 internal memory-mapped interface and the external debug interface, offset 0x304.

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