SK Hynix’s new methodology incorporated Real Intent’s Meridian RDC (reset domain crossing) tool.
SK Hynix’ goal was that their engineers would only define root resets and Meridian RDC tool would automatically propagate the resets through all the synchronizers, while handling multiple reset sequences throughout the design.
For reset setup with Meridian RDC, SK Hynix only needed to define primary independently asserted resets. They specified 3 reset scenarios and clamp and synchronizer cells for their verification.
After Meridian RDC generated results SK Hynix’s engineers focused on metastability issues due to soft resets.
With their previous methodology, primary reset propagation through the synchronizers were not handled with proper timing information. In contrast, Meridian RDC helped to identify important reset issues quickly and to make appropriate changes early in the flow.