Features

Features of the ADC module include:

• Linear successive approximation algorithm with 12 bits resolution.

• Up to 28 analog inputs.

• Output formatted in 12-, 10- or 8-bit right-justified format.

• Single or continuous conversion (automatic return to idle after single conversion).

• Configurable sample time and conversion speed/power.

• Conversion complete flag and interrupt.

• Input clock selectable from up to four sources.

• Operation in wait or stop3 modes for lower noise operation.

• Asynchronous clock source for lower noise operation.

• Selectable asynchronous hardware conversion trigger.

• Automatic compare with interrupt for less-than, or greater-than or equal-to, programmable value.

Compare Value High Register (ADCCVH)

In 12-bit mode, the ADCCVH register holds the upper four bits of the 12-bit compare value. These bits are compared to the upper four bits of the result following a conversion in 12-bit mode when the compare function is enabled

In 10-bit mode, the ADCCVH register holds the upper two bits of the 10-bit compare value (ADCV9 – ADCV8). These bits are compared to the upper two bits of the result following a conversion in 10-bit mode when the compare function is enabled. In 8-bit mode, ADCCVH is not used during compare.

Block Diagram

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