Hi,
We want to use RGMII on i.mx8mp, but the ENET uses 3.3V. Could it work?
I tested 3.3V on ENET and found RGMII worked. However, in datasheet, RGMII requestes 1.8V only.
Could you give advice if it riskly, like stability?
BR.
Hunt Yang
解決済! 解決策の投稿を見る。
Dear @WALNUTY ,
See the following screeshot, which is from i.MX8MP datasheet.
NVCC_ENET & NVCC_SAI1_SAI5 can be suppied by 3.3V.
So for Ethernet IO, 3.3V power is no problem.
>>Could you give advice if it riskly, like stability?
Most of gigabit Phy products supports 1.8V / 2.5V IO, it is easy to buy from current market. Actually ethernet phy with 3.3V can also be got, but few kinds of the products. I have ever used KSZ9031, which supports 3.3V IO, you can check it.
Thanks!
Regards,
weidong
Dear @WALNUTY ,
See the following screeshot, which is from i.MX8MP datasheet.
NVCC_ENET & NVCC_SAI1_SAI5 can be suppied by 3.3V.
So for Ethernet IO, 3.3V power is no problem.
>>Could you give advice if it riskly, like stability?
Most of gigabit Phy products supports 1.8V / 2.5V IO, it is easy to buy from current market. Actually ethernet phy with 3.3V can also be got, but few kinds of the products. I have ever used KSZ9031, which supports 3.3V IO, you can check it.
Thanks!
Regards,
weidong