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CTICLAIMCLR, CTI Claim Tag Clear register

The CTICLAIMCLR characteristics are:

Purpose

Used by software to read the values of the CLAIM bits, and to clear these bits to 0.

Configuration

CTICLAIMCLR is in the Debug power domain.

This register is not affected by a Warm reset, and is not affected by a Cold reset.

Implementation of this register is OPTIONAL.

Attributes

CTICLAIMCLR is a 32-bit register.

Field descriptions

The CTICLAIMCLR bit assignments are:

313029282726252423222120191817161514131211109876543210
CLAIM[<x>], bit [x]

CLAIM[<x>], bit [x], for x = 0 to 31

CLAIM tag clear bit.

For values of x greater than or equal to the IMPLEMENTATION DEFINED number of CLAIM tags, this bit is RAZ/SBZ. Software can rely on these bits reading as zero, and must use a Should-Be-Zero policy on writes. Implementations must ignore writes.

For other values of x, reads return the value of CLAIM[x] and the behavior on writes is:

CLAIM[<x>]Meaning
0b0

No action.

0b1

Indirectly clear CLAIM[x] to 0.

A single write to CTICLAIMCLR can clear multiple tags to 0.

An External Debug reset clears the CLAIM tag bits to 0.

An External Debug reset clears the CLAIM tag bits to 0.

Accessing the CTICLAIMCLR

CTICLAIMCLR can be accessed through the external debug interface:

ComponentOffsetInstance
CTI0xFA4CTICLAIMCLR

This interface is accessible as follows:

  • When SoftwareLockStatus() access to this register is RO.
  • When !SoftwareLockStatus() access to this register is RW.


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