Difference between PCIe retimer and ethernet retimer?

Miranda Gu

Genius 16632 points

Other Parts Discussed in Thread: DS250DF410, DS160PT801

Hi team,

I am learning PCie retimer. May I know the differences between PCIe retimer and ethernet retimer? Thank you!

over 4 years ago

0 Nikhil Menon over 4 years ago

TI__Genius 11725 points

Hi Miranda,

The main difference should be the protocols supported. Please let me know if additional info is required.

Thank you,

Nikhil

0 Miranda Gu over 4 years ago in reply to Nikhil Menon

TI__Genius 16632 points

Hi Nikhil,

Thank you for the reply.

Can they be swappable? Like using PCIe retimer in MAC to optical module lanes? Or using ethernet retimer between two CPUs?

0 Nikhil Menon over 4 years ago in reply to Miranda Gu

TI__Genius 11725 points

Hi Miranda,

I am looking into your question and will provide feedback by Friday of this week.

Thank you,

Nikhil

0 Nikhil Menon over 4 years ago in reply to Nikhil Menon

TI__Genius 11725 points

Hi Miranda,

I have reassigned this thread to the HSSC team who will be more suited to answer this question. You will receive an answer to your question shortly.

Thank you,

Nikhil

0 Nasser Mohammadi over 4 years ago in reply to Nikhil Menon

TI__Guru* 93670 points

Hi Miranda,

Our PCIe retimers participate in protocol negotiations - unlike Ethernet retimers such as DS250DF410 and etc.

Further they are now swappable since these are two different protocols and data rates.

Regards,, Nasser

0 Miranda Gu over 4 years ago in reply to Nikhil Menon

TI__Genius 16632 points

Thank you Nikhil!

0 Miranda Gu over 4 years ago in reply to Nasser Mohammadi

TI__Genius 16632 points

Hi Nasser,

Thanks for your answer.

You mean 'swappable' or 'non-swappable'?

Could you share me some documents about PCIe protocol or PCIe retimer/retimer? It would be more helpful, thank you very much.

+1 Nasser Mohammadi over 4 years ago in reply to Miranda Gu

TI__Guru* 93670 points

Hi Miranda,

PCIe operate at different data rates and protocol is different from Ethernet. Therefor we cannot exchange devices supporting these two protocols. For PCIe retimer, please take a look at DS160PT801.

Regards,, Nasser

0 Miranda Gu over 4 years ago in reply to Nasser Mohammadi

TI__Genius 16632 points

Hi Nasser,

Could you grant me the access so I can download the full datasheet of DS160PT801? Thank you!

0 Nasser Mohammadi over 4 years ago in reply to Miranda Gu

TI__Guru* 93670 points

Hi Miranda,

Please let's close this E2E case and we can discuss this through internal TI email.

Regards,, Nasser

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Difference between PCIe retimer and ethernet retimer?