Connecting an Analog Signal on P0[x] to an ADC | Cypress Semiconductor
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Connecting an Analog Signal on P0[x] to an ADC
How do I connect a signal from and analog input pin on Port0 to an ADC?
An ADC uses an SC Block and hence can only be placed on Row1 or Row2 in the analog blocks. These blocks do not have a direct access to the Analog Column Input muxes that connect to the analog input pins of Port0. To connect the input pins on Port0 to the ADC, place a PGA in the CT block of the corresponding (or adjacent) analog column, set the gain of PGA to 1 (or any desired value), connect the Port0 pin to the input of the PGA and connect the output of the PGA to the input of the ADC.