Table B1-2 c0 register summary
Op1 CRm Op2 Name Reset Description
0 c0 0 MIDR
0x411FD040
B1.96 Main ID Register on page B1-313
1 CTR
0x84448004
B1.46 Cache Type Register on page B1-219
2 TCMTR
0x00000000
B1.108 TCM Type Register on page B1-339
3 TLBTR
0x00000000
B1.109 TLB Type Register on page B1-340
4, 7 MIDR
0x411FD040
Aliases of Main ID Register, B1.96 Main ID Register on page B1-313
5 MPIDR -
B1.97 Multiprocessor Affinity Register on page B1-315
The reset value depends on the primary inputs, CLUSTERIDAFF1 and
CLUSTERIDAFF2, and the number of cores that the device implements.
6 REVIDR
0x00000000
B1.102 Revision ID Register on page B1-325
c1 0 ID_PFR0
0x00000131
B1.84 Processor Feature Register 0 on page B1-289
1 ID_PFR1
0x10011011
B1.85 Processor Feature Register 1 on page B1-291
Bits [31:28] are 0x1 if the GIC CPU interface is implemented and enabled, and
0x0 otherwise.
2 ID_DFR0
0x03010066
B1.73 Debug Feature Register 0 on page B1-267
Bits [19:16] are 0x1 if ETM is implemented, and 0x0 otherwise.
3 ID_AFR0
0x00000000
B1.72 Auxiliary Feature Register 0 on page B1-266
4 ID_MMFR0
0x10201105
B1.80 Memory Model Feature Register 0 on page B1-281
5 ID_MMFR1
0x40000000
B1.81 Memory Model Feature Register 1 on page B1-283
6 ID_MMFR2
0x01260000
B1.82 Memory Model Feature Register 2 on page B1-285
7 ID_MMFR3
0x02102211
B1.83 Memory Model Feature Register 3 on page B1-287
c2 0 ID_ISAR0
0x02101110
B1.74 Instruction Set Attribute Register 0 on page B1-269
1 ID_ISAR1
0x13112111
B1.75 Instruction Set Attribute Register 1 on page B1-271
2 ID_ISAR2
0x21232042
B1.76 Instruction Set Attribute Register 2 on page B1-273
3 ID_ISAR3
0x01112131
B1.77 Instruction Set Attribute Register 3 on page B1-275
4 ID_ISAR4
0x00011142
B1.78 Instruction Set Attribute Register 4 on page B1-277
5 ID_ISAR5
0x00011121
B1.79 Instruction Set Attribute Register 5 on page B1-279
ID_ISAR5 has the value 0x00010001 if the Cryptographic Extension is not
implemented and enabled.
B1 AArch32 system registers
B1.2 c0 registers
100236_0100_00_en Copyright © 2015–2017, 2019 Arm Limited or its affiliates. All rights
reserved.
B1-153
Non-Confidential