2.5.1 DDR PHY-Only Solution Ports

The DDR PHY-only solution ports are divided into the following groups:

DFI interface—signals required when the DDR subsystem is configured for DDR-PHY mode. This interface allows a third-party DDR controller hosted in the fabric to connect directly to the PHY.
SDRAM interface—signals connected to the DDR SDRAM.

The following illustration shows the DDR PHY-only solution ports.

Figure 2-14. DDR PHY-Only Solution Ports

Note: The DDR PHY-Only solution is supported for DDR3, LPDDR3, and DDR4 only.

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