TUSB7320: About The DUT is not in loopback of USB3.0 Host RX Compliance

Hi Brian

Thank you for your answer.

This means that as long as the timing diagram is followed,

TUSB73x0 USB 3.0 xHCI Host Controller datasheet (Rev. Q)

Figure 7-16. Power-Up Sequence

the reset is released.

Just connect BERT to  the USB3 port ,it should enter loopback mode.

Is that right?

Thanks and Best Regards

Chunli Liang

Hi Chunli:

   Sorry for confusion, For JTOL test, there is an option to select  test file in JTOL software, you need to select file nam3 "PowerReset" file to enter loopback mode to start testing.

Best

Brian

Hi Brian

Thank you for your answer.

The J-BERT that may be used is not the same model, and the operating steps are also different.

There is no step to select the 'PowerReset' file here.
That is to say, TUSB7320 can correspondingly enter LOOPBACK mode.
As long as J-BERT can produce the correct waveform, TUSB7320 can respond correctly.

Is that right?

※The oscilloscope and J-BERT are currently not in use.
I will confirm the step you mentioned when it can be used in the future.

Thanks and Best Regards

Chunli Liang

chunli Liang said:

Is that right?

Yes.