i.MX RT1170 can use Gigabit Ethernet to do MAC to MAC without PHY

[WJC]

Hello,

I want to use the Gigabit Ethernet to do MAC to MAC without PHY (RGMII to RGMII) on RT1170.
Does this work?

[WJC]

ENET 10/100Mbps can use MAC-to-MAC without phy.

Attached the simple block diagram.

Thanks in advance.

WJC

[danielchen · Accepted solution]

Yes, ENET 10/100Mbps can use MAC-to-MAC without phy.  But only RMII interface can support it.

Regards

Daniel

[WJC]

Thanks for your reply.

[danielchen]

@WJC 

RT1170 does not support MAC TO MAC connection without PHY.  Because RT1170 doesn't have delay line inserted on rx/tx data sampling capturing path, so timing will not match.

Regards

Daniel