TUSB2E221: Enquire data lines status when /reset pin is asserted.

Tiger Yeh

Expert 5985 points

Part Number: TUSB2E221
Other Parts Discussed in Thread: TIGER

Hi,

If /RESET pin is low, TUSB2E221 will run into power down mode.

May I know whether the DPx, DNx, eDPx and eDNx are Hi-Z in reset state?

That means the mux will disconnect between eUSB and USB2.

Thanks, and best regards,

Tiger

2 months ago

+1 Ryan Kitto 2 months ago

TI__Guru 59145 points

Hi Tiger,

When the repeater is put into reset, the data lanes are Hi-Z:

That would disconnect any USB2 connection.

Just curious, is your customer looking into this because they want to maintain USB2 functionality even when the repeater is in reset? Or for a different reason?

Thanks,

Ryan

0 Ryan Kitto 2 months ago in reply to Ryan Kitto

TI__Guru 59145 points

Hello,

Closing thread due to inactivity. If you have any follow-up questions or concerns, feel free to reply.

Thanks,

Ryan

0 Tiger Yeh 2 months ago in reply to Ryan Kitto

TI__Expert 5985 points

Thanks Ryan.

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TUSB2E221: Enquire data lines status when /reset pin is asserted.