Used by software to read the values of the CLAIM tag bits, and to clear CLAIM tag bits to 0.
The architecture does not define any functionality for the CLAIM tag bits.
CLAIM tags are typically used for communication between the debugger and target software.
Used in conjunction with the DBGCLAIMSET_EL1 register.
External register DBGCLAIMCLR_EL1 bits [31:0] are architecturally mapped to AArch64 System register DBGCLAIMCLR_EL1[31:0].
External register DBGCLAIMCLR_EL1 bits [31:0] are architecturally mapped to AArch64 System register DBGCLAIMSET_EL1[31:0].
External register DBGCLAIMCLR_EL1 bits [31:0] are architecturally mapped to AArch32 System register DBGCLAIMCLR[31:0].
External register DBGCLAIMCLR_EL1 bits [31:0] are architecturally mapped to AArch32 System register DBGCLAIMSET[31:0].
External register DBGCLAIMCLR_EL1 bits [31:0] are architecturally mapped to External register DBGCLAIMSET_EL1[31:0].
DBGCLAIMCLR_EL1 is in the Core power domain.
An implementation must include eight CLAIM tag bits.
DBGCLAIMCLR_EL1 is a 32-bit register.
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| RAZ/WI | CLAIM7 | CLAIM6 | CLAIM5 | CLAIM4 | CLAIM3 | CLAIM2 | CLAIM1 | CLAIM0 | |||||||||||||||||||||||
Reserved, RAZ/WI.
Claim Tag Clear. Indicates the current status of Claim Tag bit <m>, and is used to clear Claim Tag bit <m> to 0.
| CLAIM<m> | Meaning |
|---|---|
| 0b0 | On a read: Claim Tag bit <m> is not set. On a write: Ignored. |
| 0b1 | On a read: Claim Tag bit <m> is set. On a write: Clear Claim tag bit <m> to 0. |
The reset behavior of this field is:
Access to this field is W1C.
| Component | Offset | Instance |
|---|---|---|
| Debug | 0xFA4 | DBGCLAIMCLR_EL1 |
Accessible as follows: