28.4 Signal Description
| Signal Name | Type | Description |
|---|---|---|
| VREFA | Analog input | External reference voltage A |
| VREFB | Analog input | External reference voltage B |
| ADC[19..0](1) | Analog input | Analog input channels |
Note: Refer to Configuration Summary
for details on exact number of analog input channels.
Note: Refer to I/O Multiplexing and Considerations for details on the pin mapping
for this peripheral. One signal can be mapped on several pins.