Design comparison: Power-on milestone / Interface validation³Ô¹Ïtv / ENGINEERING EXPLANATIONDesign comparison: Power-on milestone / Interface validationPower-on milestoneInterface validationConfirm safe rails, clocks,reset and configuration.Then test memory and fastlinks with their own evidence.Compare at a consistent boundary; confirm the actual construction.Conceptual illustration, not field simulation, production artwork or test evidence.