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EDPIDR3, External Debug Peripheral Identification Register 3

The EDPIDR3 characteristics are:

Purpose

Provides information to identify an external debug component.

For more information, see 'About the Peripheral identification scheme'.

Configuration

Implementation of this register is OPTIONAL.

If FEAT_DoPD is implemented, this register is in the Core power domain. If FEAT_DoPD is not implemented, this register is in the Debug power domain.

This register is required for CoreSight compliance.

Attributes

EDPIDR3 is a 32-bit register.

Field descriptions

313029282726252423222120191817161514131211109876543210
RES0REVANDCMOD

Bits [31:8]

Reserved, RES0.

REVAND, bits [7:4]

Part minor revision. Parts using EDPIDR2.REVISION as an extension to the Part number must use this field as a major revision number.

This field has an IMPLEMENTATION DEFINED value.

Access to this field is RO.

CMOD, bits [3:0]

Customer modified. Indicates someone other than the Designer has modified the component.

This field has an IMPLEMENTATION DEFINED value.

Access to this field is RO.

Accessing EDPIDR3

EDPIDR3 can be accessed through the external debug interface:

ComponentOffsetInstance
Debug0xFECEDPIDR3

This interface is accessible as follows:


30/06/2021 1509:2139; 2a17f7750cfd1ab239f20f6cf29877ba8041794f4f5dd962f4e34e1ac282f76da4d6e7fc4cab087e

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