EDCIDR3, External Debug Component Identification Register 3
The EDCIDR3 characteristics are:
Provides information to identify an external debug component.
For more information, see 'About the Component 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.
EDCIDR3 is a 32-bit register.
The EDCIDR3 bit assignments are:
PRMBL_3, bits [7:0]
Reads as 0xB1.
Accessing the EDCIDR3
EDCIDR3 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.