EDPIDR0, External Debug Peripheral Identification Register 0
The EDPIDR0 characteristics are:
Provides information to identify an external debug component.
For more information, see 'About the Peripheral identification scheme'.
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.
EDPIDR0 is a 32-bit register.
The EDPIDR0 bit assignments are:
PART_0, bits [7:0]
Part number, least significant byte.
Accessing the EDPIDR0
EDPIDR0 can be accessed through the external debug interface:
This interface is accessible as follows:
- When FEAT_DoPD is not implemented or IsCorePowered() accesses to this register are RO.
- Otherwise accesses to this register generate an error response.