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PGA900: Can PGA900 output digital data?

user5883945
Expert 1391 points
Part Number: PGA900

I want to know PGA900 if the PGA900 has a digital output? for example: data output through I2C, SPI.

  • 0
    TI__Mastermind 31655 points

    Hello,

    The PGA900 can output a digital value using the COMBUF registers. Please see the datasheet section describing "Accessing PGA900 Memories While Microprocessor is Running". 

    While the internal MCU is running, only a few registers are accessible via the digital interfaces. Some of those are the COMBUF registers. You can program the firmware to recognize commands that are sent to the COMBUF_DIF_TO_MCU register and output data on the COMBUF_MCU_TO_DIF register.

    Regards,

  • 0 in reply to Scott Cummins
    Expert 1391 points

    Hi Scott:

       What is the interfaces? I2C,SPI or PWM? How select it?

      

  • 0 in reply to user5883945
    TI__Mastermind 31655 points

    Hello,

    I2C and SPI are both interfaces that could be used for the combuf communication. The combuf is accessible via any of the available digital interfaces since they are just normal device registers.

    Please refer to the SPI and I2C sections of the datasheet for more information on how to structure I2C or SPI data packets so that they can be processed by the PGA900. 

    Regards,