Article ID: 000080686 Content Type: Troubleshooting Last Reviewed: 12/31/2013

Why can't I implement more than one transceiver PHY instance in a transceiver block with Stratix IV GX/T or Arria II GX Transceiver Toolkit designs?

Environment

  • Stratix® IV GX FPGA
  • Stratix® IV GT FPGA
  • Arria® II GZ FPGA
  • Arria® II GX FPGA
BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description

The Stratix® IV GX/T and Arria® II GX Transceiver Toolkits use a non-standard transceiver PHY which instantiates a Reconfiguration Controller as one of its sub-components.

Instantiation of two transceiver PHYs in a single transceiver block violates the device fitting rule that only one reconfiguration controller can be connected to a transceiver block and will result in a Quartus® II fitting error.

You can refer to the Stratix IV GX Handbook for further details on transceiver fitting rules.

Resolution

To implement more than one transceiver channel in a transceiver block, you can increase the number of channels in the transceiver PHY.

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