SAMD20J Datasheet, PDF (26/586 Pages) ATMEL Corporation – ARM-Based Embedded Flash Microcontroller

10.4
NVM Software Calibration Row Mapping
The NVM Software Calibration Row contains calibration data that are measured and written during production test.
These calibration values should be read by the application software and written back to the corresponding register.
The NVM Software Calibration Row can be read at address 0x806020.
The NVM Software Calibration Row can not be written.
Table 10-4. NVM Software Calibration Row Mapping
Bit Position
2:0
14:3
26:15
34:27
37:35
63:38
Name
Reserved
ADC GAINCORR
ADC OFFSETCORR
ADC LINEARITY
ADC BIASCAL
Reserved
Description
ADC Gain Correction. Should be written to GAINCORR register.
ADC Offset Correction. Should be written to OFFSETCORR register.
ADC Linearity Calibration. Should be written to CALIB register.
ADC Bias Calibration. Should be written to CALIB register.
Atmel SAM D20 [Preliminary DATASHEET] 26
42129A–SAM–06/2013