Digital Feature Synchronization - 2.6 English

Zynq UltraScale+ RFSoC RF Data Converter v2.6 Gen 1/2/3/DFE LogiCORE IP Product Guide (PG269)

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2.6 English

After the synchronization is complete, a common state for the clocking is shared between all tiles. The same synchronization infrastructure can also be used by the digital datapath features using Dynamic Update Events.

One example of this is the NCOs that make up the fine mixer features in the DDC and DUC chains. The NCO settings can be applied at the exact same moment across multiple tiles and multiple Zynq UltraScale+ RFSoCs using SYSREF. Each NCO supports the dynamic setting of frequency and phase with the changes being applied on a SYSREF or other update event. Similarly, there is an option to reset the phase of the NCO on a SYSREF or other update event. For a single-tile synchronization, the tile event can be used to synchronize the NCOs within a tile. For multiple tile synchronization, SYSREF events should be used.