For the parameter Translation Mode, the value 1 (Protection) that was available in the v2.0 core is obsolete. The core no longer supports producing an error response back to a master that is not well-behaved when converting from AXI4 or AXI3 to AXI4-Lite, or from AXI4 to AXI3. During the upgrade to v2.1, any previously-configured core set to Translation Mode = 1 will automatically get set to Translation Mode = 2 (Conversion).