AD7091R-8 Channel Register

Hi

I have a question AD7091R-8.

This is how to set the channel register.
Which of the following two is correct? Or are they different?

① First set the Address (including R / W). The lower 10 bits are set to '0' → Next Channel Register is set. For example, 'FF' when all channels are used
That is, two accesses are required
Or
② Address containing R / W in the upper 6 bits, lower 8 bits as FF.
In other words, it is OK with one access


 

Best Regards

HOD

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  • 0
    •  Analog Employees 
    on Dec 11, 2017 7:38 PM

    Hello HOD,

    The writing of an address should be done all in one transaction, so your option #2.  The command for enabling all channels of the AD7091R-8 is 0x0CFF. Please see Table 25 of the data sheet for further detail.

    Address = 0x1

    Write Bit = 1

    Data: 0x0FF

    -- Ryan

Reply
  • 0
    •  Analog Employees 
    on Dec 11, 2017 7:38 PM

    Hello HOD,

    The writing of an address should be done all in one transaction, so your option #2.  The command for enabling all channels of the AD7091R-8 is 0x0CFF. Please see Table 25 of the data sheet for further detail.

    Address = 0x1

    Write Bit = 1

    Data: 0x0FF

    -- Ryan

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