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LMK04826: Programming Sequence for not use RESET pin.

Louis Han15
Genius 4680 points

Part Number: LMK04826

Hello

After POR, Pin5 is set to RESET as default.

What is the programming sequence that does not use the RESET pin during external pull-up at Pin5?

Can I config the LMK04826 when external pull-up at Pin5?

Best Regards

  • 0
    TI__Mastermind 34870 points

    Hello Louis,

    If the RESET pin is high, SPI programming will not take effect. The RESET pin must be held low or left floating to allow device programming.

    If you have a microcontroller or other device which can pull the RESET pin low after POR, you can then configure 0x14A which contains the RESET_MUX and RESET_TYPE fields. You could, for instance, set 0x14A = 0x06, which configures the RESET pin as an open-drain output, guaranteeing that signals, noise, or pull-up configurations on the RESET pin do not trigger a reset.

    Regards,