PHY - 1.0 English

Versal ACAP Programmable Network on Chip and Integrated Memory Controller LogiCORE IP Product Guide (PG313)

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1.0 English

The PHY is considered the low-level physical interface to an external DDR4 or LPDDR4/4X SDRAM device as well as all calibration logic for ensuring reliable operation of the physical interface itself. The PHY generates the signal timing and sequencing required to interface to the memory device.

The PHY contains the following features:
  • Clock/address/control-generation logic
  • Write and read datapaths
  • Logic for initializing the SDRAM after power-up

In addition, the PHY contains calibration logic to perform timing training of the read and write datapaths to account for system static and dynamic delays.