ADCx_SC3 field descriptions (continued)
Field
Description
calibration sequence. Once started, the calibration routine cannot be interrupted by writes to the ADC
registers or the results will be invalid and CALF will set. Setting CAL will abort any current conversion.
6
CALF
Calibration Failed Flag
Displays the result of the calibration sequence. The calibration sequence will fail if SC2[ADTRG] = 1, any
ADC register is written, or any stop mode is entered before the calibration sequence completes. Writing 1
to CALF clears it.
0
Calibration completed normally.
1
Calibration failed. ADC accuracy specifications are not guaranteed.
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 or one set of conversions if the hardware average function is enabled, that is,
AVGE=1, after initiating a conversion.
1
Continuous conversions or sets of conversions if the hardware average function is enabled, that is,
AVGE=1, after initiating a conversion.
2
AVGE
Hardware Average Enable
Enables the hardware average function of the ADC.
0
Hardware average function disabled.
1
Hardware average function enabled.
AVGS
Hardware Average Select
Determines how many ADC conversions will be averaged to create the ADC average result.
00
4 samples averaged.
01
8 samples averaged.
10
16 samples averaged.
11
32 samples averaged.
Memory map and register definitions
KL02 Sub-Family Reference Manual, Rev. 2.1, July 2013
354
Freescale Semiconductor, Inc.