DP83TG720S-Q1: Interface forum

xu yang

Tool/software:

DP83TG720S-Q1 what is this PHY 0x405 register used for? The configuration values 0x5800 you recommend are different from the ones 0x6400 we used before.

And 0x55D register used for,I can't find it in the manual.

over 1 year ago

0 Melissa Chang over 1 year ago

TI__Genius 13946 points

Hi Xu,

0x405 is an internal DSP settings register, we cannot share exactly what the settings are due to confidentiality.

For initalization, you should set 0x405 =0x5800. But if you want to run TDR, 0x405=0x6400.

Where are you seeing 0x55D?

Best regards,

Melissa

0 xu yang over 1 year ago in reply to Melissa Chang

Prodigy 10 points

0x55D in our history codes

+1 Melissa Chang over 1 year ago in reply to xu yang

TI__Genius 13946 points

Hi Xu,

This is for a different device, the DP83TG721: https://www.ti.com/product/DP83TG721S-Q1

You can find more information about this device if you have NDA with us, but we cannot share exactly what 0x55D does.

Best regards,

Melissa

0 xu yang over 1 year ago in reply to Melissa Chang

Prodigy 10 points

thank you very much!