AM6442: RGMII ICSSG input slew rate

Thomas Delling

Guru 13805 points

Part Number: AM6442

Hello,

I have a question to the RGMII timing:

AM64XX ICSSG required RGMII input slew rate

The DS (SPRSP56B – JANUARY 2021 – REVISED AUGUST 2021) specifies a req input slow rate of:

Min 2,65V/ns = 679ps @1,8V

Max 5V/ns= 360ps @1,8V

This is more tight as the RGMII spec (750ps), pls double check this!

Regards

Tom

0 melissaw over 3 years ago

Hi Tom,

I am looking into your question, but our technical expert is out of office until Wednesday. I expect to have an answer when he returns.

Regards,

Melissa

0 Thomas Delling over 3 years ago

Guru 13805 points

Hello,

any news here, it's getting urgent, we have to finalize our timing.

Regards

Tom

0 Thomas Delling over 3 years ago in reply to Thomas Delling

Guru 13805 points

Hello,

still wait for feedback!

Regards

Tom

0 melissaw over 3 years ago

Tom,

Sorry for the delay. We are discussing with an internal team and will provide an update tomorrow.

Regards,

Melissa

0 melissaw over 3 years ago in reply to melissaw

Hi Tom,

The ICSSG RGMII min input slew rate will be updated in a future datasheet revision. The planned update is:

Min: 1.44V/ns @ 1.8V and 2.64V/ns @ 3.3V

Regards,

Melissa

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