i.MX 8M Plus Manual Description

[www1519]

Hi! NXP Engineer

Is Ground*RX_P/N = "RX_P and RX_N pins are connected to Ground" in  i.MX 8M Plus Hardware Developer’s Guide?

Thanks a lot

The same as above  in i.MX 8M Plus Applications Processor Datasheet for Consumer Products.

[www1519]

Hi Mr.Ritesh M Patel@riteshmpatel 

I see. Thank you.

But according to ds, if USB1 or USB2 or USB1&2 do not used， USBx_RX_P and USBx_RX_N should be connected to the Ground.

If USB1 & USB2 are used as USB 2.0(not USB 3.0), USBx_RX_P and USBx_RX_N should be connected to the Ground? or be floating?

(I think USBx_RX_P and USBx_RX_N are used for USB 3.0)

[riteshmpatel]

Hi @www1519,

If USB 2.0 connections are only used, USBx_RX_P and USBx_RX_N should be connected to the Ground.

Thanks & Regards,
Ritesh M Patel

[www1519]

Hi Mr.Ritesh M Patel @riteshmpatel 

Thank you for your reply.

>If USB 2.0 connections are only used, USBx_RX_P and USBx_RX_N should be connected to the Ground.

→I see.Thank you.

    If They are not connected to the GND, and only  power consumption of SoC is increasing, is correct?

[riteshmpatel · Accepted solution]

Hi @www1519,

Unused signal termination is recommended to follow for:

1. Noise immunity
2. To reduce additional power consumption.

Thanks & Regards,
Ritesh M Patel

[www1519]

Hi Mr.Ritesh M Patel @riteshmpatel

Thank you for your reply.

[riteshmpatel]

Hi @www1519,

I hope you are doing well.

If USBx_RX_P and USBx_RX_N are not used, they should be connected to the Ground.

Thanks & Regards,
Ritesh M Patel