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DP83TC813R-Q1: How to determine which RGMII mode to use

Masatoshi Oguri
Expert 4780 points
Part Number: DP83TC813R-Q1

Hello,

There are 4 modes for RGMII. Would you please instruct how to determine which mode to use? What is the internal delay, and when will the user need it?

1 0 0 RGMII (Align Mode)
1 0 1 RGMII (TX Internal Delay Mode)
1 1 0 RGMII (TX and RX Internal Delay Mode)
1 1 1 RGMII (RX Internal Delay Mode)

Thank you.

Regards,

Oguri (TIJ automotive FAE)