https://docs.amd.com/r/en-US/pg194-axi-bridge-pcie-gen3/VSEC-Header-Register-2-Offset-0x204?contentId=zHcSzj02EL3NVYVr0C4i5g
VSEC Header Register 2 (Offset 0x204) - VSEC Header Register 2 (Offset 0x204) - 3.0 English - PG194
The VSEC Header Register 2 (described in the following table) provides a unique (within a given vendor) identifier for the layout and contents of the VSEC...
vsecheaderregisteroffsetenglish