DP83822H: TX_CLK doesn't work after replacing TLK105 by DP83822

Oba

Part Number: DP83822H
Other Parts Discussed in Thread: TLK105

Hello,

My customer replaced TLK105 by DP83822 on their board that the TLK105 worked with AM572x.
Then they found clock was not output on DP83822’s TX_CLK pin after replacing.
What kind of problems do you see in this case?

Regards,
Oba

over 6 years ago

0 Nikhil Menon over 6 years ago

TI__Genius 11725 points

Hi Oba,

Have you followed the instructions in this document? https://www.ti.com/lit/an/snla262/snla262.pdf

Thank you,

Nikhil

0 Oba over 6 years ago in reply to Nikhil Menon

TI__Genius 17855 points

Hello,

I have sent the document and they are checking now.
But what should they check for this not clocking TX_CLK issue?

Also they would like to know what register configuration is required to work TX_CLK.
Could you please tell what register should be configured?

Regards,
Oba

0 Oba over 6 years ago in reply to Oba

TI__Genius 17855 points

Hello,

The customer found that this might be caused by wrong strap configuration due to host processor's internal PU/PD.
So please wait for a while.

Regards,
Oba

0 Oba over 6 years ago in reply to Oba

TI__Genius 17855 points

Hello,

This was caused by wrong strap configuration due to host processor's internal PU/PD.
I want to close this thread.

Regards,
Oba

Interface

Interface forum

DP83822H: TX_CLK doesn't work after replacing TLK105 by DP83822