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4.3.29. Preload Engine User Accessibility Register

The PLEUAR characteristics are:


Controls whether PLE operations are available in User mode.

Usage constraints

The PLEUAR is:

  • Common to Secure and Non-secure states

  • Accessible in User and Privileged modes, regardless of any configuration bit.


Only available in configurations where the Preload Engine is present, otherwise an Undefined Instruction exception is taken.


Figure 4.16 shows the PLEUAR bit assignments.

Figure 4.16. PLEUAR bit assignments

Figure 4.16. PLEUAR bit assignments

Table 4.28 shows the PLEUAR bit assignments.

Table 4.28. PLEUAR bit assignments

User accessibility

1 = User modes can access PLE registers and execute PLE operations.

To access the PLEUAR, use:

MCR p15, 0, <Rt>, c11, c1, 0; Read PLEAUR
MRC p15, 0, <Rt>, c11, c1, 0; Write PLEAUR