Does IMX283's Ethernet port support both MII and RMII interfaces?

[linjiepan]

Does IMX283's Ethernet port support both MII and RMII interfaces?

It seams that IMX283's Ethernet port only supports RMII interfaces, not suit for MII interfaces.

In the I.MX28 series,  only IMX287 supports MII interfaces and two  Ethernet ports ?

[Yuri]

  The i.MX28 supports both MII and RMII modes ; from software point of view,
it is enough to setup correctly RMII_MODE bit in HW_ENET_MAC_RCR register.

Please look at section 26.4.9 "ENET MAC Receive Control Register

(HW_ENET_MAC_RCR)" of the  i.MX28 Reference Manual.

Only the i.MX287 contains two ENET modules.

Have a great day,
Yuri

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[linjiepan]

Yuri

      IMX283 only has the PIN: ENET0_TXD0, ENET0_TXD1, ENET0_TX_EN,,ENET0_RXD0, ENET0_RXD1, ENET0_RX_EN, as showed on the< IMX28CEC.PDF>.

If IMX283 can supports both MII modes, where is the PIN of ENET0_TXD2,ENET0_TXD3,ENET0_RXD2 and ENET0_RXD3?

[Yuri]

The i.MX283  does not support MII (just RMII).

Regards,

Yuri.

[linjiepan]

Yuri

     thanks for your reply. So, In the I.MX28 series,  only IMX287 supports MII interfaces and two  Ethernet ports ?

[Yuri]

> So, In the I.MX28 series,  only IMX287 supports MII interfaces and two  Ethernet ports ?

Correct.

Regards,

Yuri.