How to read back the contents of the RDAC registers of ADI5121/5141 by IIC bus ?

I can't   understand   IIC   address 。  

     

I  use AD5121.

I don't know the meaning of the above two pictures

Here's what I wrote.

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  • Hi,

    ADDR0 and ADDR1 are physical pins (check pin description section of the data sheet).

    The combination of the logic states of these 2 pins will define the "device address" i2c frame you need to send to the device.

    For example, if both pins are logic state = LOW, then you need to send 0101111 as your address.

    Do you get ACK from the device? If yes then you are doing the right thing.

    Cheers,

    Ivan

Reply
  • Hi,

    ADDR0 and ADDR1 are physical pins (check pin description section of the data sheet).

    The combination of the logic states of these 2 pins will define the "device address" i2c frame you need to send to the device.

    For example, if both pins are logic state = LOW, then you need to send 0101111 as your address.

    Do you get ACK from the device? If yes then you are doing the right thing.

    Cheers,

    Ivan

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