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Tool/software:
Hello,
For the impedance control, the 35 ohm recommended for RGMII in table 7-59 for MAC_IMPEDANCE_CTRL seems wrong in the specification and does not match the 50 ohm recommendation in 7.3.2 of 50ohms +/-20%.
Is 50 ohms correct and recommended? Do not understand the intent of the 35 ohm note.
Thanks!
Hi Tijana,
Thank you for pointing out the 35Ω comment, I am unsure about the intent and will verify internally with my team, please allow me about a week to reach out and hear back. The guidance would be to keep the traces impedance matched to 50Ω, no series resistors are needed on the RGMII lines.
Regards,
Alvaro