AM5728: USB3.0 receiver jitter tolerance test

Yasunori Saito

Part Number: AM5728

Hi,

My customer is trying to perform USB3.0 compliance test in AM5728 USB.
But they could not get "pass" for "Receiver Jitter Tolerance Test".

1. Is there a way to get "pass" for this test?

2. Is it effective way to configure USB3PHYRX_EQUALIZER_REG1(0x4A084438)?
If so, please tell me the details.

Best Regards,
Yasunori

over 8 years ago

0 Biser Gatchev-XID over 8 years ago

TI__Guru**** 393215 points

The factory team have been notified. They will respond here.

0 -DK- over 8 years ago

TI__Mastermind 27890 points

1) Please review SPRAAR7 and ensure that the PCB design requirements have been met.

2) No. The value of this register should not be modified as it is already optimized.

0 Yasunori Saito over 8 years ago in reply to -DK-

Intellectual 460 points

Hi Biser,
Thank you for your help.

Hi -DK-,
Thank you for your help.

1)
We will check about it. Thanks.

2)
I understood that USB3PHYRX_EQUALIZER_REG1(PHY_RX registers) should be set as it is written in "Table 26-17. USB3_PHY Tuning Table"(spruhz6h.pdf).
Is this correct?

Best Regards,
Yasunori

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AM5728: USB3.0 receiver jitter tolerance test