Critical Warning(18816): Ignored invalid assignment setting "tx_vod_no_jitcomp_dc_l0" for parameter "pma_tx_buf_powermode_dc_tx_vod_no_jitcomp" - Critical Warning(18816): Ignored invalid assignment setting "tx_vod_no_jitcomp_dc_l0" for parameter "pma_tx_buf_powermode_dc_tx_vod_no_jitcomp" Description You will see the critical warning above when you add the "HSSI_PARAMETER" assignment for the Intel® Stratix® 10 L- and H-Tile device as per the guideline in Table 22 of the Intel® Stratix® 10 L- and H-Tile Transceiver PHY User Guide(UG-20055 | 2020.10.22) or earlier version. The assignment syntax set_instance_assignment -name HSSI_PARAMETER "pma_tx_buf_powermode_dc_tx_vod_no_jitcomp = TX_VOD_NO_JITCOMP_DC_L0" -to <serial TX pin name> is wrong. Resolution To avoid this critical warning syntax is as below "set_instance_assignment -name HSSI_PARAMETER "pma_tx_buf_powermode_dc_tx_vod_no_jitcomp = powerdown_tx_vod_no_jitcomp" -to <serial TX pin name> " The new assignment syntax is fixed start with UG-20055 version 2020.10. 22. Custom Fields values: ['novalue'] Troubleshooting 1508293639 False ['novalue'] ['novalue'] novalue novalue ['Stratix® 10 GX FPGA', 'Stratix® 10 MX FPGA', 'Stratix® 10 SX FPGA', 'Stratix® 10 TX FPGA'] ['novalue'] ['novalue'] ['novalue'] - 2023-01-11