Aff2, [23:16]
Affinity level 2. Second highest level affinity field.
Indicates the value read in the CLUSTERIDAFF2 configuration signal.
Aff1, [15:8]
Affinity level 1. Third highest level affinity field.
Indicates the value read in the CLUSTERIDAFF1 configuration signal.
Aff0, [7:0]
Affinity level 0. Lowest level affinity field.
Indicates the core number in the Cortex‑A35 processor. The possible values are:
0x0 A processor with one core only.
0x0, 0x1 A cluster with two cores.
0x0, 0x1, 0x2 A cluster with three cores.
0x0, 0x1, 0x2, 0x3 A cluster with four cores.
To access the TRCDEVAFF0:
MRC p15,0,<Rt>,c0,c0,5 ; Read TRCDEVAFF0 into Rt
Register access is encoded as follows:
Table C11-2 TRCDEVAFF0 access encoding
coproc opc1 CRn CRm opc2
1111 000 0000 0000 101
The TRCDEVAFF0 can be accessed through the external debug interface, offset 0xFA8.
C11 ETM registers
C11.57 Device Affinity Register 0
100236_0100_00_en Copyright © 2015–2017, 2019 Arm Limited or its affiliates. All rights
reserved.
C11-805
Non-Confidential
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