TUSB4020BI: About setting of Product ID

Hi Team,

Our customer use TUSB4020BI and they set “Product ID=0x003E” and set cfgActive=”1” of Device Status and Command register (0xF8).

At the result, PC side displays “Product ID= 0x003C” so there is a difference in the value.

* TUSB4020BI in the application and PC are connected by USB.

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[Q1]

Is this the correct behavior of TUSB4020BI?

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[Q2]

They set “Product ID =default(0x8025)” of TUSB4020BI.

At the result, PC side displays “Product ID= 0x8027” so there is a difference in the value.

Is this the correct behavior of TUSB4020BI?

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[Q3]

I found the following comment in the datasheet.

> The value reported in the USB 2.0 device descriptor is the value of this register bit wise XORed with 00000010b.

If I would like to display "0x003E ", Should I set “Product ID= 0x003C” of TUSB4020BI?

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Regards,

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