NXP Semiconductors K22F series - ADC Minus-Side General Calibration Value Register (Adcx_Clm0); Functional Description

34.3.24 ADC Minus-Side General Calibration Value Register
(ADCx_CLM0)
For more information, see CLMD register description.
Address: Base address + 6Ch offset
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
0
CLM0
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0
ADCx_CLM0 field descriptions
Field Description
31–6
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
CLM0 Calibration Value
Calibration Value
34.4 Functional description
The ADC module is disabled during reset, in Low-Power Stop mode, or when
SC1n[ADCH] are all high; see the power management information for details. The
module is idle when a conversion has completed and another conversion has not been
initiated. When it is idle and the asynchronous clock output enable is disabled, or
CFG2[ADACKEN]= 0, the module is in its lowest power state. The ADC can perform an
analog-to-digital conversion on any of the software selectable channels. All modes
perform conversion by a successive approximation algorithm.
To meet accuracy specifications, the ADC module must be calibrated using the on-chip
calibration function.
See Calibration function for details on how to perform calibration.
When the conversion is completed, the result is placed in the Rn data registers. The
respective SC1n[COCO] is then set and an interrupt is generated if the respective
conversion complete interrupt has been enabled, or, when SC1n[AIEN]=1.
The ADC module has the capability of automatically comparing the result of a
conversion with the contents of the CV1 and CV2 registers. The compare function is
enabled by setting SC2[ACFE] and operates in any of the conversion modes and
configurations.
Chapter 34 Analog-to-Digital Converter (ADC)
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
NXP Semiconductors 789