Can USB0_RREF open if USB0 is unused on LPC4357?

[thanhnhatle]

Hi,

I am using LPC4357 on my design.

USB1 is using on my board, and USB0 is unused.

Therefore, is there any problem if USB0_RREF pin is opened as USB0 is unused?

The following pins are opened too on my board.

USB0_VBUS

USB0_DP

USB0_DM

USB0_ID

Thank you very much.

[ZhangJennie · Accepted solution]

Hi

I suggest the below connections. see below.

• USB0_DP----- unconnected
• USB0_DM---- unconnected
• USB0_VBUS pulled low
• USB0_ID---- unconnected
• USB0_RREF pulled low

Have a great day,
Jun Zhang

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