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Original question:

CDCE6214-Q1: Register Address of CDCE6214

CDCE6214: daisy chain I2C control for multi CDCE6214 application

Ben Kuo
Expert 7570 points
Part Number: CDCE6214


Dear team,

We have six CDCE6214 devices on our board.

For this application, can we daisy chain I2C for CDCE6214? 

Per my understood, we should provide each device has a unique address to control/ config device sperate. 

How to set up I2C address?

Regards,

Ben

  • +1
    TI__Mastermind 18070 points

    Hi Ben,

    Only the LSB of the I2C address can be changed through EEPROM, so there can only be at most 3 different I2C addresses (taking into account the fallback mode)

    One possible workaround is to pre-program the EEPROM for all six devices so that you don't need MCU to program them on the board. Otherwise you need at least two separate I2C buses.

    Regards,
    Hao