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Arm Cortex-A55 Core Technical Reference Manual : PMSSCR, PMU Snapshot Capture Register

PMSSCR, PMU Snapshot Capture Register

The PMSSCR provides a mechanism for software to initiate a sample.

Bit field descriptions

The PMSSCR is a 32-bit write-only register.

Figure D7-3 PMSSCR bit assignments


RES0, [31:1]
Reserved, RES0.
SS, [0]
Capture now. The possible values are:
0Ignored.
1Initiate a capture immediately.
Configurations
There are no configuration notes.

Usage constraints

Any access to PMSSCR returns an error if any of the following occurs:

  • The core power domain is off.
  • DoubleLockStatus() == TRUE.
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