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AM5728: USB2.0 test mode

Part Number: AM5728


Hi,

My customer measuerd the waveform of USB test mode by using AM5728 USB2.0 Test mode.

Please see the below.

As you see the above picture, an error happened.

Why does this error happend? The below is correct waveform(this is not AM5728).

I think AM5728's USB2.0 test mode does not need to configure register for test mode. The test mode just select the mode numbeer. Is this right?

What should I check?

Please advise me.

Best regards,

Michi