i.MX RT Crossover MCUsのトピックi.MXRT1060 RGMII Mode

i.MXRT1060 RGMII Mode

gcary — Thu, 31 Jan 2019 05:52:00 GMT

The i.MXRT1060 Reference Manual refers to RGMII Mode for Ethernet. The chapter is also titled "10/100 /1000 -Mbps Ethernet MAC (ENET)". Is that a typo? Gigabit Ethernet would be nice, but I don't think it has that. But if it had an RGMII interface, I would use it, even if gigabit speeds weren't supported (some 10/100 PHY's have RGMII interfaces).

Thanks,

Greg

Re: i.MXRT1060 RGMII Mode

joanxie — Wed, 13 Feb 2019 07:59:44 GMT

refer to the data sheet:

10/100M Ethernet controller with support for IEEE1588

Re: i.MXRT1060 RGMII Mode

gpontis — Sun, 17 Feb 2019 17:21:19 GMT

I noticed that too. GigE would be a nice enhancement to this family. Without GigE support, what benefit would the RGMII connection bring ?

Re: i.MXRT1060 RGMII Mode

gcary — Sun, 17 Feb 2019 20:29:48 GMT

I have since changed my mind about what I had said. Some 10/100 PHYs have an RGMII interface for processors that only have an RGMII interface. But I don't think there is any advantage to RGMII over RMII if all you want is 10/100. It is too bad they didn't include GigE in the i.MX RT.

Re: i.MXRT1060 RGMII Mode

gcary — Sun, 17 Feb 2019 20:41:53 GMT

Thanks Joan. In general does the data sheet take precedence over the reference manual?