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DP83822I: Pins in VDDIO domain

Kazuki Itoh
Genius 10920 points
Part Number: DP83822I


Hi team,

Can you please let me know which pins are in VDDIO domain?

I'll power VDD=1.8V but some pins need to communicate with 3.3V interface.

So I need to determine which pin to use level translator.

Are all IO pins in VDDIO domain listed in Table 1 in the datasheet?

Regards,

Itoh  

  • 0
    TI__Genius 11725 points

    Hi Ito-san,

    You are correct, Table 1 lists the IO pins in the VDDIO domain. However, a pull-up to VDDIO is not always required. For example, MDC should not be pulled-up to VDDIO. Please review the Pin Functions table for more information.

    Additionally, the strap pins do not require a pull-up to VDDIO. The use of a pull-up to VDDIO will depend on the strap settings preferred for the design. Please review section 8.5 for more information about strap settings.

    You may also review the EVM schematic here: 

    I hope this helps!

    Thank you,

    Nikhil