C9.10 ROM Table Peripheral Identification Register 4
The ROMPIDR4 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
C1.4 External access permissions to debug registers on page C1-579 describes the condition
codes.
Configurations
The ROMPIDR4 is in the Debug power domain.
Attributes
See C9.3 ROM table register summary on page C9-672.
RES0
31 0
34
DES_2
78
Size
Figure C9-6 ROMPIDR4 bit assignments
[31:8]
Reserved, RES0.
Size, [7:4]
0x0 Size of the component. Log2 the number of 4KB pages from the start of the component to
the end of the component ID registers.
DES_2, [3:0]
0x4 Designer, JEP106 continuation code, least significant nibble. For Arm Limited.
The ROMPIDR4 can be accessed through the external debug interface, offset 0xFD0.
C9 ROM table
C9.10 ROM Table Peripheral Identification Register 4
100236_0100_00_en Copyright © 2015–2017, 2019 Arm Limited or its affiliates. All rights
reserved.
C9-682
Non-Confidential
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