DP83TC814R-Q1: MII Rise and Fall Time

Jared Becker

Genius 11635 points

Part Number: DP83TC814R-Q1

Hi Team,

Is there a specification for the MII interface for rise and fall time? I see a spec for RGMII, but not MII..

Thank you,

Jared

over 2 years ago

0 Alon Kopelman over 2 years ago

TI__Expert 3725 points

Hi Jared,

This is what I am seeing as far as MII timing.

Best regards,

Alon K.

0 Jared Becker over 2 years ago in reply to Alon Kopelman

TI__Genius 11635 points

Hi Alon,

Yes, those are the MII specs, but they do not include rise and fall time. Can you please provide that spec for MII or an explanation as to why they are not pertinent?

Thank you,

Jared

+1 Alon Kopelman over 2 years ago in reply to Jared Becker

TI__Expert 3725 points

Hi Jared,

I confirmed, MII rise/fall are not pertinent.

This is a slow interface, with a period of about 40ns, as it is a 25MHz clock. What matters is setup and hold times.

Best regards,
Alon K.

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DP83TC814R-Q1: MII Rise and Fall Time