DP83TC811S-Q1: whether DP93TC811 can support ieee1588v2 protocol?

Amelie Zheng

Genius 10865 points

Part Number: DP83TC811S-Q1
Other Parts Discussed in Thread: DP83TC811, DP83640, DP83630

Hi Team,

May I ask whether our DP93TC811 can support ieee1588v2 protocol?

Thanks!

over 5 years ago

0 Nikhil Menon over 5 years ago

TI__Genius 11725 points

Hi Amelie,

DP83TC811 does not support IEEE 1588V2, but it does support IEEE 1588 SFD in the MAC.

Thank you,

Nikhil

0 Amelie Zheng over 5 years ago in reply to Nikhil Menon

TI__Genius 10865 points

Hi Nikhil,

Thanks for your reply. May I ask what difference between IEEE 1588V2 and IEEE 1588 SFD are? If you have some document to share, I will appreciate it.

The reason why my customer need IEEE 1588V2 is IEEE 1588 SFD can support real time. If several PHY have the same event, the PHY with IEEE 1588 SFD have higher priority to process...

But I don't know what IEEE 1588 SFD is used for...

Thanks!

0 Amelie Zheng over 5 years ago in reply to Amelie Zheng

TI__Genius 10865 points

Hi Team,

Would you minding giving some guidance?

What are the difference between IEEE 1588V2 and IEEE 1588 SFD?

0 Nikhil Menon over 5 years ago in reply to Amelie Zheng

TI__Genius 11725 points

Hi Amelie,

IEEE 1588 time-stamping is described here: https://e2e.ti.com/blogs_/b/analogwire/archive/2016/09/28/how-to-implement-ieee-1588-time-stamping-in-an-ethernet-transceiver. This blog describes the differences between Ethernet time-stamping methods.

Thank you,

Nikhil

0 Amelie Zheng over 5 years ago in reply to Nikhil Menon

TI__Genius 10865 points

Hi Nikhil,

May I understand that 1588 SFD is belong to software time stamp, which is IEEE 1588V1?

0 Amelie Zheng over 5 years ago in reply to Nikhil Menon

TI__Genius 10865 points

May I ask do we have automotive PHY roadmap tp support IEEE 1588 V2?

Thanks!

0 Nikhil Menon over 5 years ago in reply to Amelie Zheng

TI__Genius 11725 points

Hi Amelie,

Yes SFD is a software time stamp. We currently have the DP83630 and DP83640 with IEEE 1588v2 support, and we have a roadmap for a Gigabit PHY with 1588v2 support.

Thank you,

Nikhil

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DP83TC811S-Q1: whether DP93TC811 can support ieee1588v2 protocol?