AM4378: How to turn on the delay in the TX path?

Lauren Mayfield

Part Number: AM4378

Hi team,

Question from my customer-

After re-reading the TRM for the AM437x (section 15.1.2), it seems that the processor does not support the RGMII Internal Delay Mode. How then is it turning on the delay on the TX path?

Thanks,

Lauren

over 4 years ago

0 -DK- over 4 years ago

TI__Mastermind 27890 points

Hi Lauren,

Digging into this now. Hope to have an answer for you today.

0 -DK- over 4 years ago

TI__Mastermind 27890 points

Lauren,

I did verify that this is a documentation "reuse" error in the TRM (this same IP was used in a SoC that didn't support RGMII_ID mode).

The AM437x SoC does support RGMII_ID mode for the TX channel as outlined in the device datasheet. I've filed an internal bug against the TRM to have this issue corrected in the next revision.

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AM4378: How to turn on the delay in the TX path?