PMA Direct Interface

The PMA Direct mode uses the Topaz transceiver lane's PMA only. It supports serial data rates up to 12.5 Gbps. In this configuration, the serializer and deserializer interface connect directly to the FPGA fabric. The transceiver supports 20-, 40-, 32-, and 64-bit configurations. This mode gives you the flexibility to implement other transceiver protocols in the FPGA fabric.

Figure 1. Funtional Block Diagram
Note: The number of transceivers is package dependent. Refer to the data sheet for the number of transceivers available in the package you are using.
Tip: The PMA Direct interface is complicated. If you find yourself turning a lot of options on and off to enable or disable features, some of the GUI menus might get out of sync. Therefore, Efinix suggests that you note the settings you want, and then start fresh with a newly created PMA Direct block with only the settings you want.