Why do I see a large number of warnings related to RAM blocks being synthesized away when compiling an Intel® Stratix® 10 FPGA or Intel Agilex® 7 design with the JESD204C Intel® FPGA IP in RX Simplex mode? - Why do I see a large number of warnings related to RAM blocks being synthesized away when compiling an Intel® Stratix® 10 FPGA or Intel Agilex® 7 design with the JESD204C Intel® FPGA IP in RX Simplex mode? Description When compiling a design with the JESD204C Intel® FPGA IP in RX Simplex mode targeting Intel® Stratix® 10 devices with E-Tile transceivers or Intel Agilex® 7 devices using the Intel® Quartus® Prime Pro Edition Software version 19.2 and later, you may see warnings like the ones shown below. The following warnings are related to signals rx_eb_data_soemb_out_w_w[L-1:0] and rx_eb_data_somb_out_w_w[L-1:0] and can be safely ignored as only bit [0] of each will be used as an input to the transport layer. Warning(14320): Synthesized away node "u_j204c_rx_tx_ss|j204c_rx_tx_ip|intel_jesd204c|intel_jesd204c|j204c_rx_base_inst|j204c_rx_ll_top_inst|rx_ll_per_lane_inst[0].j204c_rx_eb_inst|j204c_eb_fifo|j204c_rx_eb_fifo_noecc_inst|j204c_rx_eb_fifo_noecc|scfifo_component|auto_generated|dpfifo|FIFOram|altera_syncram_impl1|q_b[129]" Warning(14320): Synthesized away node "u_j204c_rx_tx_ss|j204c_rx_tx_ip|intel_jesd204c|intel_jesd204c|j204c_rx_base_inst|j204c_rx_ll_top_inst|rx_ll_per_lane_inst[0].j204c_rx_eb_inst|j204c_eb_fifo|j204c_rx_eb_fifo_noecc_inst|j204c_rx_eb_fifo_noecc|scfifo_component|auto_generated|dpfifo|FIFOram|altera_syncram_impl1|q_b[130]" The following warnings relate to signals j204c_rx_cmd_data [18:7] when the sync header configuration is CRC-12. However, these can be safely ignored as the CRC-12 configuration only uses the lower 7 bits (thus, 12 signals will be synthesized away). Warning(14320): Synthesized away node "u_j204c_rx_tx_ss|j204c_rx_tx_ip|intel_jesd204c|intel_jesd204c|j204c_rx_base_inst|j204c_rx_ll_top_inst|rx_ll_per_lane_inst[0].j204c_rx_eb_inst|j204c_eb_fifo|j204c_rx_eb_fifo_noecc_inst|j204c_rx_eb_fifo_noecc|scfifo_component|auto_generated|dpfifo|FIFOram|altera_syncram_impl1|q_b[138]" Warning(14320): Synthesized away node "u_j204c_rx_tx_ss|j204c_rx_tx_ip|intel_jesd204c|intel_jesd204c|j204c_rx_base_inst|j204c_rx_ll_top_inst|rx_ll_per_lane_inst[0].j204c_rx_eb_inst|j204c_eb_fifo|j204c_rx_eb_fifo_noecc_inst|j204c_rx_eb_fifo_noecc|scfifo_component|auto_generated|dpfifo|FIFOram|altera_syncram_impl1|q_b[139]" Warning(14320): Synthesized away node "u_j204c_rx_tx_ss|j204c_rx_tx_ip|intel_jesd204c|intel_jesd204c|j204c_rx_base_inst|j204c_rx_ll_top_inst|rx_ll_per_lane_inst[0].j204c_rx_eb_inst|j204c_eb_fifo|j204c_rx_eb_fifo_noecc_inst|j204c_rx_eb_fifo_noecc|scfifo_component|auto_generated|dpfifo|FIFOram|altera_syncram_impl1|q_b[140]" Warning(14320): Synthesized away node "u_j204c_rx_tx_ss|j204c_rx_tx_ip|intel_jesd204c|intel_jesd204c|j204c_rx_base_inst|j204c_rx_ll_top_inst|rx_ll_per_lane_inst[0].j204c_rx_eb_inst|j204c_eb_fifo|j204c_rx_eb_fifo_noecc_inst|j204c_rx_eb_fifo_noecc|scfifo_component|auto_generated|dpfifo|FIFOram|altera_syncram_impl1|q_b[141]" Warning(14320): Synthesized away node "u_j204c_rx_tx_ss|j204c_rx_tx_ip|intel_jesd204c|intel_jesd204c|j204c_rx_base_inst|j204c_rx_ll_top_inst|rx_ll_per_lane_inst[0].j204c_rx_eb_inst|j204c_eb_fifo|j204c_rx_eb_fifo_noecc_inst|j204c_rx_eb_fifo_noecc|scfifo_component|auto_generated|dpfifo|FIFOram|altera_syncram_impl1|q_b[142]" Warning(14320): Synthesized away node "u_j204c_rx_tx_ss|j204c_rx_tx_ip|intel_jesd204c|intel_jesd204c|j204c_rx_base_inst|j204c_rx_ll_top_inst|rx_ll_per_lane_inst[0].j204c_rx_eb_inst|j204c_eb_fifo|j204c_rx_eb_fifo_noecc_inst|j204c_rx_eb_fifo_noecc|scfifo_component|auto_generated|dpfifo|FIFOram|altera_syncram_impl1|q_b[143]" Warning(14320): Synthesized away node "u_j204c_rx_tx_ss|j204c_rx_tx_ip|intel_jesd204c|intel_jesd204c|j204c_rx_base_inst|j204c_rx_ll_top_inst|rx_ll_per_lane_inst[0].j204c_rx_eb_inst|j204c_eb_fifo|j204c_rx_eb_fifo_noecc_inst|j204c_rx_eb_fifo_noecc|scfifo_component|auto_generated|dpfifo|FIFOram|altera_syncram_impl1|q_b[144]" Warning(14320): Synthesized away node "u_j204c_rx_tx_ss|j204c_rx_tx_ip|intel_jesd204c|intel_jesd204c|j204c_rx_base_inst|j204c_rx_ll_top_inst|rx_ll_per_lane_inst[0].j204c_rx_eb_inst|j204c_eb_fifo|j204c_rx_eb_fifo_noecc_inst|j204c_rx_eb_fifo_noecc|scfifo_component|auto_generated|dpfifo|FIFOram|altera_syncram_impl1|q_b[145]" Warning(14320): Synthesized away node "u_j204c_rx_tx_ss|j204c_rx_tx_ip|intel_jesd204c|intel_jesd204c|j204c_rx_base_inst|j204c_rx_ll_top_inst|rx_ll_per_lane_inst[0].j204c_rx_eb_inst|j204c_eb_fifo|j204c_rx_eb_fifo_noecc_inst|j204c_rx_eb_fifo_noecc|scfifo_component|auto_generated|dpfifo|FIFOram|altera_syncram_impl1|q_b[146]" Warning(14320): Synthesized away node "u_j204c_rx_tx_ss|j204c_rx_tx_ip|intel_jesd204c|intel_jesd204c|j204c_rx_base_inst|j204c_rx_ll_top_inst|rx_ll_per_lane_inst[0].j204c_rx_eb_inst|j204c_eb_fifo|j204c_rx_eb_fifo_noecc_inst|j204c_rx_eb_fifo_noecc|scfifo_component|auto_generated|dpfifo|FIFOram|altera_syncram_impl1|q_b[147]" Warning(14320): Synthesized away node "u_j204c_rx_tx_ss|j204c_rx_tx_ip|intel_jesd204c|intel_jesd204c|j204c_rx_base_inst|j204c_rx_ll_top_inst|rx_ll_per_lane_inst[0].j204c_rx_eb_inst|j204c_eb_fifo|j204c_rx_eb_fifo_noecc_inst|j204c_rx_eb_fifo_noecc|scfifo_component|auto_generated|dpfifo|FIFOram|altera_syncram_impl1|q_b[148]" Warning(14320): Synthesized away node "u_j204c_rx_tx_ss|j204c_rx_tx_ip|intel_jesd204c|intel_jesd204c|j204c_rx_base_inst|j204c_rx_ll_top_inst|rx_ll_per_lane_inst[0].j204c_rx_eb_inst|j204c_eb_fifo|j204c_rx_eb_fifo_noecc_inst|j204c_rx_eb_fifo_noecc|scfifo_component|auto_generated|dpfifo|FIFOram|altera_syncram_impl1|q_b[149]" Resolution These warning messages are expected and can be safely ignored. Custom Fields values: ['novalue'] Troubleshooting 1507999569 True ['JESD204B IP'] ['FPGA Dev Tools Quartus® Prime Software Pro'] novalue 19.2 ['Agilex™ 7 FPGAs and SoCs', 'Stratix® 10 MX FPGA', 'Stratix® 10 TX FPGA'] ['novalue'] ['novalue'] ['novalue']