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ADC msp430f2274

Other Parts Discussed in Thread: MSP430F2274

Hi working on msp430f2274.there is a doubt regarding the channels A12-A15 of ADC10 in msp430f2274. As on the datasheet , register ADC10CTL1 states that we have A12-A15 channels only available with msp430f22xx devices. 

1100 (VCC - VSS) / 2, A12 on MSP430F22xx devices

 


so does  this means that two different functions are multiplexed on the same channel A12 for  msp430f22xx devices?..

if yes then how can i select the A12 function for this channel...

here is a snapshot of the page in datasheet..

  • Anup, I already answered that question in your other thread. Anyway:

    The user's guide says:

    • 1100 (Vcc - Vss) / 2 OR A12 on MSP430x22xx devices

    You have a MSP430F2274 so it is A12 since the MSP430F2274 belongs to the group of MSP430x22xx devices.

    If you would have a G2553 for example, this would be half the supply voltage. It depends on the device.

    Dennis

  • Indeed, this table a bit confusing.
    It should better read
    1100 A12 (Vcc/2 on devices without A12 pin)

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