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Arm Cortex-A55 Core Technical Reference Manual : EDDEVID, External Debug Device ID Register 0

EDDEVID, External Debug Device ID Register 0

The EDDEVID provides extra information for external debuggers about features of the debug implementation.

Bit field descriptions

Figure D3-5 EDDEVID bit assignments


RES0, [31:28]
res0Reserved.
AuxRegs, [27:24]

Indicates support for Auxiliary registers:

0x0None supported.
RES0, [23:0]
res0Reserved.

Bit fields and details not provided in this description are architecturally defined. See the Arm® Architecture Reference Manual Armv8, for Armv8-A architecture profile.

The EDDEVID can be accessed through the external debug interface, offset 0xFC8.

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