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Original question:

TUSB4041I: OTP tool for TUSB4041IPAP USB Hub

TUSB4041I: Request OTP tool for TUSB4041I

Shinichi Inoue
Guru 21721 points
Part Number: TUSB4041I
Other Parts Discussed in Thread: TUSB8041

Dear Specialists,

My customer'd like to obtain OTP tool for TUSB4041I.

Could  you please provide?

I appreciate your great help in advance.

Best regards,

Shinichi

  • 0
    TI__Guru*** 146695 points

    Hi Shinichi:

             OTP is done during wafer testing. we have EEPROM tool to change device configuration for customer. Is this what you asked for?

    Regards

    Brian

  • 0 in reply to Brian Zhou
    Guru 21721 points

    Hi Brian,

    Thank you for your reply.

    Actually, the customer'd like to know how to use OTP ROM.

    Could you please provide a kind of materials, application note or something.

    I appreciate your great help and cooperation.

    Best regards,

    Shinichi

  • 0 in reply to Shinichi Inoue
    TI__Guru*** 146695 points

    Shinichi:

        OTP is one time efuse process, let me find out what material we have.

    Best

    Brian

  • 0 in reply to Brian Zhou
    TI__Guru*** 146695 points

    Shinichi:

            This  is how OTP works in  Efuse mode:

                  Efuse mode is used to control the implemented C021 fuse-farm controller. Once the device enters this mode, the fuse-farm controller’s JTAG interface is connected to the JTAG interface I/O pins. The Fuse ROM can be programmed and debugged in this mode,

                 The TUSB8041 includes a fuse ROM bank supporting die ID, UUID, and PHY macro trim requirements, port disable, custom port de-emphasis, swing, and other feature configuration control bits. The fuse ROM map is identified in the eFuse ROM spreadsheet. The fuse ROM address locations are subject to change based on the DFT implementation.

           Is this information helpful? Normally OTP is done by TI , not by customer.

    Regards

    Brian

  • 0 in reply to Brian Zhou
    Guru 21721 points

    Hi Brian,

    Thank you for your reply.

    Did you wrongly write TUSB8041? Does it mean TUSB4041?

    Is efuse mode conducted by TI factory?

    If so, I don't think this is what the customer wants to know.

    Could you please let me know what information is in the OTP ROM and how to access it.

    I appreciate your great help and cooperation.

    Best regards,

    Shinichi

  • 0 in reply to Shinichi Inoue
    TI__Guru*** 146695 points

    Shinichi:

           Sorry, tt should be TUSB4041I.

           This is OTP register map, If you need Efuse tool, pls accept my friendship request and I will send with private message.

        Regards

    Brian

  • 0 in reply to Brian Zhou
    Guru 21721 points

    Hi Brian,

    Thank you for your reply.

    I'll share this information with the customer.

    When they have an additional question, I consult you again.

    I appreciate your great help and cooperation.

    Best regards,

    Shinichi 

  • 0 in reply to Shinichi Inoue
    TI__Guru*** 146695 points

    Sent Efuse tool to your message.

    Regards

    Brian