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ARM Cortex A9 - Page 86

ARM Cortex A9
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System Control
ARM DDI 0388I Copyright © 2008-2012 ARM. All rights reserved. 4-37
ID073015 Non-Confidential
Attributes See Table 4-12 on page 4-10.
Figure 4-16 shows the PLEASR bit assignments.
Figure 4-16 PLEASR bit assignments
Table 4-43 shows the PLEASR bit assignments.
To access the PLEASR, read the CP15 register with:
MRC p15, 0, <Rt>, c11, c0, 2; Read PLEASR
4.3.18 PLE FIFO Status Register
The PLEFSR characteristics are:
Purpose Indicates how many entries remain available in the PLE FIFO.
Usage constraints The PLEFSR is:
common to Secure and Non-secure states
accessible in User and privileged modes, regardless of any
configuration bit.
NSAC.PLE controls Non-secure accesses.
Configurations Available in all Cortex-A9 configurations regardless of whether a PLE is
present or not.
Attributes See Table 4-12 on page 4-10.
Figure 4-17 shows the PLEFSR bit assignments.
Figure 4-17 PLESFR bit assignments
31 1 0
RRAZ
Table 4-43 PLEASR bit assignments
Bits Name Function
[31:1] - Reserved, RAZ
[0] R PLE Channel running:
1 The Preload Engine is handling a PLE request.
31 450
Available
entries
RAZ/WI

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