Article ID: 000080587 Content Type: Troubleshooting Last Reviewed: 06/29/2015

Why does Quartus II software version 15.0 and earlier allow an unsupported registered phase compensation FIFO setting for channels 1 and 2 of Arria V device transceiver banks GXB_L0 and GXB_R0?

Environment

  • Arria® FPGAs
  • Arria® V GX FPGA
  • Quartus® II Subscription Edition
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    Due to a problem in the Quartus® II software version 15.0 and earlier, the Quartus II software fitter allows an unsupported registered phase compensation FIFO setting for channels 1 and 2 of Arria® V device transceiver banks GXB_L0 and GXB_R0?

    The restriction in the Arria V device handbook is correct. There is no support for registered phase compensation FIFO mode in channels 1 and 2 of GXB_L0 and GXB_R0.

    Resolution

    You should not use the phase compensation FIFO in registered mode for the above channels.

    This problem will be fixed in a future version of the Quartus II software.

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