C8.13 External Debug Peripheral Identification Register 4
The EDPIDR4 characteristics are:
Purpose
Provides information to identify an external debug component.
Usage constraints
This register is accessible as follows:
Off DLK OSLK EDAD SLK Default
- - - - - RO
Table C1-1 Conditions on external register access to debug registers on page C1-579 describes
the condition codes.
Configurations
The EDPIDR4 is in the Debug power domain.
Attributes
See C8.1 Memory-mapped debug register summary on page C8-644.
RES0
31 0
34
DES_2
78
Size
Figure C8-11 EDPIDR4 bit assignments
[31:8]
Reserved, RES0.
Size, [7:4]
0x0 Size of the component. Log
2
the number of 4KB pages from the start of the component to
the end of the component ID registers.
DES_2, [3:0]
0x4 Arm Limited. This is the least significant nibble JEP106 continuation code.
The EDPIDR4 can be accessed through the external debug interface, offset 0xFD0.
C8 Memory-mapped debug registers
C8.13 External Debug Peripheral Identification Register 4
100236_0100_00_en Copyright © 2015–2017, 2019 Arm Limited or its affiliates. All rights
reserved.
C8-662
Non-Confidential
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