(continued)
Name Type Reset Description
ID_AA64MMFR2_EL1 RO
0x0000000000001011
B2.60 ID_AA64MMFR2_EL1, AArch64 Memory Model
Feature Register 2, EL1 on page B2-226
ID_AA64PFR0_EL1 RO • 0x1100000010111112 if the
GICv4 interface is disabled.
• 0x1100000011111112 if the
GICv4 interface is enabled.
B2.61 ID_AA64PFR0_EL1, AArch64 Processor Feature
Register 0, EL1 on page B2-227
ID_AFR0_EL1 RO
0x00000000
B2.63 ID_AFR0_EL1, AArch32 Auxiliary Feature Register
0, EL1 on page B2-230
ID_DFR0_EL1 RO
0x04010088
B2.64 ID_DFR0_EL1, AArch32 Debug Feature Register 0,
EL1 on page B2-231
ID_ISAR0_EL1 RO
0x02101110
B2.65 ID_ISAR0_EL1, AArch32 Instruction Set Attribute
Register 0, EL1 on page B2-233
ID_ISAR1_EL1 RO
0x13112111
B2.66 ID_ISAR1_EL1, AArch32 Instruction Set Attribute
Register 1, EL1 on page B2-235
ID_ISAR2_EL1 RO
0x21232042
B2.67 ID_ISAR2_EL1, AArch32 Instruction Set Attribute
Register 2, EL1 on page B2-237
ID_ISAR3_EL1 RO
0x01112131
B2.68 ID_ISAR3_EL1, AArch32 Instruction Set Attribute
Register 3, EL1 on page B2-239
ID_ISAR4_EL1 RO
0x00010142
B2.69 ID_ISAR4_EL1, AArch32 Instruction Set Attribute
Register 4, EL1 on page B2-241
ID_ISAR5_EL1 RO
0x01011121
ID_ISAR5 has the value 0x01010001
if the Cryptographic Extension is not
implemented and enabled.
B2.70 ID_ISAR5_EL1, AArch32 Instruction Set Attribute
Register 5, EL1 on page B2-243
ID_ISAR6_EL1 RO
0x00000010
B2.71 ID_ISAR6_EL1, AArch32 Instruction Set Attribute
Register 6, EL1 on page B2-245
ID_MMFR0_EL1 RO
0x10201105
B2.72 ID_MMFR0_EL1, AArch32 Memory Model Feature
Register 0, EL1 on page B2-246
ID_MMFR1_EL1 RO
0x40000000
B2.73 ID_MMFR1_EL1, AArch32 Memory Model Feature
Register 1, EL1 on page B2-248
ID_MMFR2_EL1 RO
0x01260000
B2.74 ID_MMFR2_EL1, AArch32 Memory Model Feature
Register 2, EL1 on page B2-250
ID_MMFR3_EL1 RO
0x02122211
B2.75 ID_MMFR3_EL1, AArch32 Memory Model Feature
Register 3, EL1 on page B2-252
ID_MMFR4_EL1 RO
0x00021110
B2.76 ID_MMFR4_EL1, AArch32 Memory Model Feature
Register 4, EL1 on page B2-254
B2 AArch64 system registers
B2.4 AArch64 registers by functional group
100798_0300_00_en Copyright © 2016–2018 Arm Limited or its affiliates. All rights
reserved.
B2-137
Non-Confidential
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