Accessing DDR Memory Using a Third-Party DDR Controller and the DDR PHY-Only Solution

The DDR PHY-only solution can be used to access the SDRAMs using a third-party DDR controller or an open-source DDR controller. A fabric master accesses the DDR memory through a third-party DDR controller and the DDR PHY-only solution, as shown in the following figure.

Figure 1. DDR Memory Accessed Through Third-Party DDR Controller