42.4 Signal Description
| Signal | Type | Description |
|---|---|---|
| AVDD | Power | Analog Power Supply |
| AVSS | Power | Analog Ground Supply |
| ADC_VREFH | Reference | External voltage reference |
| ADC0 AINx, x =0,1,,…,15 | Analog | AINx Analog inputs for ADC Module 0 |
| ADC1 AINx x =0,1,,…,5 | Analog | AINx Analog inputs for ADC Module 1 |
| ADC2 AINx, x =0,1,,…,5 | Analog | AINx Analog inputs for ADC Module 2 |
| ADC3 AINx, x =0,1,,…,5 | Analog | AINx Analog inputs for ADC Module 3 |
Note:
- ADC Module 1, Channel 6 is attached internally to VDDCORE Voltage Monitor.
- ADC Module 2, Channel 6 is attached internally to Temperature Sensor Monitor.
- ADC Module 3, Channel 6 is attached internally to IVREF, Band Gap 1.2 Volt Monitor.
Note: Please consult the section “Signal
Description” and “ADC Pinout I/O Description” table to determine which pins provide
which input signals, depending on the device package in use.
All the AINx signals listed above can be used for single-ended input. ADC Modules 1-3 can also provide three differential input pairs each:
- (ADCn_AIN0 (Diff +) , ADCn_AIN1 (Diff -) )
- (ADCn_AIN2 (Diff +) , ADCn_AIN3 (Diff -) )
- (ADCn_AIN4 (Diff +) , ADCn_AIN5 (Diff -) )
For ADC Module n=1,2,3: These pairs are configured in the CHNCFG3n (n=1,2,3) register by setting the DIFF bits corresponding to the signal pairs in use.