AR# 60086

When using the Ethernet 1000BASE-X PCS/PMA or SGMII IP example design, the following parameter should be set before synthesizing the design:

"set_param chipscope.error_legacy_black_box 0" 

Failing to do so could result in the following error: 

ERROR: [Chipscope 16-215] This design contains the following cells that cannot be upgraded by the Vivado debug core inserter system: xxxxx

The current work around is to set the above parameter and then re-synthesize the design and re-insert the current version of the debug cores into the design.