Why do I get a System Error (SERROR) after I perform read-modify-write operations on the 32-bits ECC Peripheral registers? - Why do I get a System Error (SERROR) after I perform read-modify-write operations on the 32-bits ECC Peripheral registers? Description Due to an incorrect implementation of ECC Peripheral registers mapping, the ECC Peripheral registers listed below support read-modify-write operations for only bits [15:0]. Write operations on bits [31:16] will cause a System Error (SERROR). Agilex 5: ECC Address Block Group: USBOTG0_ecc USB1_tx_ecc USB1_rx_ecc USB1_cache_ecc EMAC 0_tx_ecc EMAC 0_rx_ecc EMAC 1_tx_ecc EMAC1_rx_ecc EMAC2_tx_ecc EMAC2_rx_ecc OCRAM_ecc Stratix 10 and Agilex 7: ECC Address Block Group: EMAC0_rx_ecc EMAC0_tx_ecc EMAC1_rx_ecc EMAC1_tx_ecc EMAC2_rx_ecc EMAC2_tx_ecc USB0_ecc USB1_ecc NANDe_ecc NANDr_ecc NANDw_ecc SDMMC_ecc DMAC_ecc OnChip_RAM_ecc SDRAML3Interconnect Address Block Group: hmc_adp_csr_ocp_slv_block ECCCTRL1 ECCCTRL2 ERRINTEN ERRINTENS ERRINTENR INTMODE INTSTAT DIAGINTTEST Arria 10: ECC Address Block Group: emac_rx_ecc emac_tx_ecc nandecc_ecc nandr_ecc nandw_ecc sdmcc_ecc onchip_ram_ecc dmac_ecc qspi_ecc usb_ecc usb_ecc nand_ecc Resolution The registers listed above only support read-modify-write operations for bits [15:0]. Custom Fields values: ['novalue'] Troubleshooting 15016024419 False ['novalue'] ['novalue'] novalue novalue ['Agilex™ 5 FPGAs and SoCs', 'Agilex™ 7 FPGAs and SoCs', 'Arria® 10 SX FPGA', 'Stratix® 10 AX FPGA', 'Stratix® 10 SX FPGA'] ['novalue'] ['novalue'] ['novalue']