Bit[8] Exception level 0.
Bit[9] Exception level 1.
Bit[10] Always RES0.
Bit[11] Exception level 3.
[7:4]
Reserved, RES0.
Context type, [3:2]
Controls whether the trace unit performs a Context ID comparison, a VMID comparison, or both
comparisons:
0b00 The trace unit does not perform a Context ID comparison.
0b01 The trace unit performs a Context ID comparison using the Context ID comparator
that the CONTEXT field specifies, and signals a match if both the Context ID
comparator matches and the address comparator match.
0b10 The trace unit performs a VMID comparison using the VMID comparator that the
CONTEXT field specifies, and signals a match if both the VMID comparator and the
address comparator match.
0b11 The trace unit performs a Context ID comparison and a VMID comparison using the
comparators that the CONTEXT field specifies, and signals a match if the Context ID
comparator matches, the VMID comparator matches, and the address comparator
matches.
Type, [1:0]
The type of comparison:
0b00 Instruction address, RES0.
The TRCACATRn can be accessed through the external debug interface, offset 0x480-0x4B8.
C11 ETM registers
C11.46 Address Comparator Access Type Registers 0-7
100236_0100_00_en Copyright © 2015–2017, 2019 Arm Limited or its affiliates. All rights
reserved.
C11-793
Non-Confidential
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