The user can refer to the “ CHECKING JESD204C LINK STATUS “ section in the ADRV9026 user guide to know how to determine the link state is good or bad. Customer can read back Deframer0 lane A~lane D link status by register 0x6B2B~06B2E, 0x6B2B[D2:D0] is lane A link status indicator. 0x6B2C[D2:D0] is lane B link status indicator. 0x6B2D[D2:D0] is lane C link status indicator. 0x6B2E[D2:D0] is lane D link status indicator. The user can refer to the table in the “ CHECKING JESD204C LINK STATUS “ section to know each reading back value corresponding link state. When read back link status indicator value is 0x06 which mean the state machine stay at“ FEC_READY ”state(Good State). The link has set up correctly.