Why does the F-Tile Ethernet Hard IP 100GE-1 Ethernet mode only allow the FEC mode to be set to “IEEE 802.3 RS(544,514) (CL 134)” when CL134 does not apply to the IEEE 802.3 RS(544,514) standard? - Why does the F-Tile Ethernet Hard IP 100GE-1 Ethernet mode only allow the FEC mode to be set to “IEEE 802.3 RS(544,514) (CL 134)” when CL134 does not apply to the IEEE 802.3 RS(544,514) standard? Description Due to a problem in the Quartus® Prime Pro Edition software version 25.1 and earlier, the F-Tile Ethernet Hard IP 100GE-1 Ethernet mode only allows the FEC mode to be set to “ IEEE 802.3 RS(544,514) (CL 134) ”. This GUI Option is incorrect for the 100GE-1 IEEE 802.3 RS(544,514) standard. The allowable FEC modes for the 100GE-1 IEEE 802.3 RS(544,514) standard are “ IEEE 802.3 RS(544, 514) (CL91) ” and “ IEEE 802.3 RS(544, 514) (CL161) ”. Resolution To work around this problem in an application that requires a FEC mode of “IEEE 802.3 RS(544, 514) (CL91) ”, perform the following Avalon® Memory-Mapped write on the Ethernet Reconfiguration Interface “ i_reconfig_eth ” bus: Address = 0x66c4 Data = 0x14 To work around this problem in an application that requires a FEC mode of “ IEEE 802.3 RS(544, 514) (CL161) ”, select the " IEEE 802.3 RS(544,514) (CL 134 )” option for FEC mode. This option actually implements the “ IEEE 802.3 RS(544, 514) (CL161) ” mode. This problem is scheduled to be fixed in a future release of the Quartus® Prime Pro Edition software. Custom Fields values: ['novalue'] Troubleshooting 14024890314, 16026676809 False ['F-Tile Ethernet Hard IP'] ['FPGA Dev Tools Quartus® Prime Software Pro'] novalue 24.1 ['Agilex™ 5 FPGAs and SoCs', 'Agilex™ 7 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']