AN 960: JESD204C Intel® FPGA IP and ADI AD9081 MxFE* ADC Interoperability Report for Intel Agilex® 7 E-Tile Devices

ID 709330
Date 3/27/2023

1.7. Test Result Comments

In each test case, the RX JESD204C Intel® FPGA IP successfully establishes the sync header alignment, extended multiblock alignment, and until user data phase.

No data integrity issue is observed by the Ramp checker for JESD configurations at different lanes rates covering all physical lanes, also no cyclic redundancy check (CRC) and command parity error is observed.

For a few of JESD204C configurations, lane deskew error appears. To avoid this error, the LEMC offset values should be programmed or you can automate this with the calibration sweep procedure. The first iteration is run to calibrate the LEMC and RBD offset to achieve minimum latency and avoid lane deskew error. The maximum variation of RBD count reported by the IP core is 1 for each mode across 12 power cycles, this is as expected, which is within 2 RBD counts.

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