Why does the "rx_10g_frame_mfrm_err" flag assert during an Interlaken non-framing layer control word when using a Stratix V device Native PHY IP with the Interlaken Preset?

Description

Due to a problem in the Quartus® Prime software, both the "rx_10g_mfrm_err" flag and "rx_10g_control[8]" status bit might assert during Interlaken non-framing layer control words when using the Stratix V device Native PHY IP with the Interlaken Preset.

Resolution

To workaround this issue, ignore the "rx_10g_mfrm_err" flag and "rx_10g_control[8]" status bit during non-framing layer control word locations within the Interlaken metaframe.