TUSB8041 - About Programming(Read and write) tool of the resistor

Hello Kanemaru,

The resistor value must be changed on the board, it cannot be modified by OTP.

Regards,

JMMN

Hi Jmmn-san,

Thank you for the information!

I’m understanding that you don’t have the GUI for TUSB8041 such as the USB interface adapter.

Is my understanding correct?

Our customer would like to use the I2C interface to change the device’s resistors.

[USB interface adapter]

http://www.tij.co.jp/jp/lit/ml/sllu093/sllu093.pdf

Regards,

Kanemaru

Hello Kanemaru-san,

The bias resistor voltage cannot be changed through I2C.  Which resistor values is the customer trying to change?

Regards,

JMMN

Hi Jmmn-san,

I apologize for confusing you..

“resistor” is typo, so “register” is right.

We understood that we can change this register by I2C.

(please refer to the following figure)

However, must this use EEPROM to change this register?

[My image]

They would like to change the u1u2Disable register from enable(0) to disable(1).

Could you please let us know if you have the simple method to change the this register?

Regards,

Kanemaru

Hi Elias-san, Jmmn-san,

Thank you for your prompt reply!

Could you please send us the tool?

And, could you please let us know if you have the information of recommended EEPROM?

I’m looking forward to hearing from you.

[my e-mail address]

Kanemaru-h@clv.macnica.co.jp

Regards,

Kanemaru

Hi Elias-san, Jmmn-san,

I’m sorry for the delay in my reply.

Thank you very much for your help.

Regards,

Kanemaru