D9.2 TRCACATRn, Address Comparator Access Type Registers 0-7
The TRCACATRn control the access for the corresponding address comparators.
Bit field descriptions
The TRCACATRn is a 64-bit register.
63 16 15 12 11 8 7 3 2 1 0
TYPE
EXLEVEL_S
CONTEXTTYPEEXLEVEL_NS
RES0
Figure D9-1 TRCACATRn bit assignments
RES0, [63:16]
RES0 Reserved.
EXLEVEL_NS, [15:12]
Each bit controls whether a comparison can occur in Non-secure state for the corresponding
exception level. The possible values are:
0 The trace unit can perform a comparison, in Non-secure state, for exception level n.
1 The trace unit does not perform a comparison, in Non-secure state, for exception level
n.
The Exception levels are:
Bit[12] Exception level 0.
Bit[13] Exception level 1.
Bit[14] Exception level 2.
Bit[15] Always RES0.
EXLEVEL_S, [11:8]
Each bit controls whether a comparison can occur in Secure state for the corresponding
exception level. The possible values are:
0 The trace unit can perform a comparison, in Secure state, for exception level n.
1 The trace unit does not perform a comparison, in Secure state, for exception level n.
The Exception levels are:
Bit[8] Exception level 0.
Bit[9] Exception level 1.
Bit[10] Always RES0.
Bit[11] Exception level 3.
RES0, [7:4]
RES0 Reserved.
CONTEXT TYPE, [3:2]
Controls whether the trace unit performs a Context ID comparison, a VMID comparison, or both
comparisons:
D9 ETM registers
D9.2 TRCACATRn, Address Comparator Access Type Registers 0-7
100798_0300_00_en Copyright © 2016–2018 Arm Limited or its affiliates. All rights
reserved.
D9-499
Non-Confidential
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