NXP Semiconductors KE1xF Series, Reference Manual, Page: 837 / 1483

37.4.7 Status and Control Register 3 (ADCx_SC3)
The Status and Control Register 3 (SC3) controls the calibration, continuous conversion,
and hardware averaging functions of the ADC module.
Address: Base a 94h offset
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
R
0
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
0
CAL
0 0
ADCO
AVGE
AVGS
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ADCx_SC3 field descriptions
Field Description
31–8
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
7
CAL
Calibration
When CAL=1, the ADC begins the calibration sequence. This field stays set while the calibration is in
progress and is cleared when the calibration sequence is completed. After it is started, the calibration
routine cannot be interrupted by writes to the ADC registers or the results will be invalid. Setting CAL will
abort any current conversion.
NOTE: For calibration, it is mandatory to use averaging and average number 32.
NOTE: If several ADCs are on a device, they should be calibrated sequentially. No parallel calibrations of
ADCs are allowed because they will disturb each other.
6
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
5–4
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
3
ADCO
Continuous Conversion Enable
Enables continuous conversions.
0 One conversion will be performed (or one set of conversions, if AVGE is set) after a conversion is
initiated.
1 Continuous conversions will be performed (or continuous sets of conversions, if AVGE is set) after a
conversion is initiated.
2
AVGE
Hardware Average Enable
Table continues on the next page...
Chapter 37 Analog-to-Digital Converter (ADC)
Kinetis KE1xF Sub-Family Reference Manual, Rev. 4, 06/2019
NXP Semiconductors 837