DP83867E: Is 10M half duplex supported with RGMII?

Pekka Varis

Part Number: DP83867E
Other Parts Discussed in Thread: DP83867IR

Hi,

Does DP83867e support 10M half duplex with RGMII interface? The datasheet is not clear on this and I'm unable to find a comment on COL signal similar to DP83867IR (has In RGMII mode, COL is not used.).

Pekka

over 3 years ago

0 Alvaro (Al-vuh-roe) Reyes over 3 years ago

TI__Mastermind 19621 points

Hi Pekka,

You're right, the datasheet does not explicitly answer your question. Please see the attached document, it'll provide the details you're looking for.

Refer to Sec 3.4 in the Document:

6661.RGMIIv1_3.pdf

Regards,

Alvaro

0 Pekka Varis over 3 years ago in reply to Alvaro (Al-vuh-roe) Reyes

TI__Mastermind 27050 points

So the answer is yes, with this section:

Collision is determined at the MAC by the assertion of TXEN being true while either CRS or RXDV are true. The PHY will not assert CRS as a result of TXEN being true.

Pekka

Interface

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DP83867E: Is 10M half duplex supported with RGMII?