Once an ADC conversion is complete, the ADCSTA bit will be set indicating that the ADC result is available in the ADCDAT MMR. The result is left justified with the MSB of the 12-bit ADC result being placed at bit 27 of the 32-bit value. This has the advantage that if the ADC results are averaged, no precision will be lost during the division. The top 4 bits of the result are the sign bits, these are used in the case of a Bipolar result. If bit 28 is a ‘1’ all of these bits will be set.