2 system control coprocessor registers, 1 register allocation, System control coprocessor registers -9 – ARM Cortex R4F User Manual

Page 93: Table 4-2, Summary of cp15 registers and operations -9

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System Control Coprocessor

ARM DDI 0363E

Copyright © 2009 ARM Limited. All rights reserved.

4-9

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4.2

System control coprocessor registers

This section describes all of the registers in the system control coprocessor. The section presents
a summary of the registers and descriptions in register order of CRn, Opcode_1, CRm,
Opcode_2.

For more information on using the system control coprocessor and the general method of how
to access CP15 registers, see the ARM Architecture Reference Manual.

4.2.1

Register allocation

Table 4-2 shows a summary of address allocation and reset values for the registers in the system
control coprocessor where:

CRn is the register number within CP15

Op1 is the Opcode_1 value for the register

CRm is the operational register

Op2 is the Opcode_2 value for the register.

Table 4-2 Summary of CP15 registers and operations

CRn

Op1

CRm

Op2

Register or operation

Type

Reset value

Page

c0

0

c0

{0, 3, 6-7}

Main ID

Read-only

0x41xFC14x

a

page 4-14

1

Cache Type

Read-only

0x8003C003

page 4-15

2

TCM Type

Read-only

0x00010001

page 4-16

4

MPU Type

Read-only

0x00000000

b

page 4-17

5

Multiprocessor ID

Read-only

0x00000000

page 4-18

c1

0

Processor Feature 0

Read-only

0x00000131

page 4-18

1

Processor Feature 1

Read-only

0x00000001

page 4-19

2

Debug Feature 0

Read-only

0x00010400

page 4-20

3

Auxiliary Feature 0

Read-only

0x00000000

page 4-21

4

Memory Model Feature 0

Read-only

0x00210030

page 4-21

5

Memory Model Feature 1

Read-only

0x00000000

page 4-22

6

Memory Model Feature 2

Read-only

0x01200000

page 4-24

7

Memory Model Feature 3

Read-only

0x00000011

page 4-25

c2

0

Instruction Set Attributes 0

Read-only

0x01101111

page 4-26

c0

0

c2

1

Instruction Set Attributes 1

Read-only

0x13112111

page 4-27

2

Instruction Set Attributes 2

Read-only

0x21232131

page 4-28

3

Instruction Set Attributes 3

Read-only

0x01112131

page 4-30

4

Instruction Set Attributes 4

Read-only

0x00010142

page 4-31

5

Instruction Set Attributes 5

Read-only

0x00000000

page 4-32

6-7

Reserved, Read As Zero
(RAZ)

Read-only

0x00000000

page 4-32

c3-c7

0-7

Reserved, RAZ

Read-only

0x00000000

-

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