Information

ADCx_SC3 field descriptions (continued)
Field Description
0 Calibration completed normally.
1 Calibration failed. ADC accuracy specifications are not guaranteed.
5–4
Reserved
This read-only field is reserved and always has the value zero.
3
ADCO
Continuous conversion enable
ADCO enables continuous conversions.
0 One conversion or one set of conversions if the hardware average function is enabled (AVGE=1) after
initiating a conversion.
1 Continuous conversions or sets of conversions if the hardware average function is enabled (AVGE=1)
after initiating a conversion.
2
AVGE
Hardware average enable
AVGE enables the hardware average function of the ADC.
0 Hardware average function disabled.
1 Hardware average function enabled.
1–0
AVGS
Hardware average select
AVGS 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.
32.3.8 ADC offset correction register (ADCx_OFS)
The ADC offset correction register (OFS) contains the user selected or calibration
generated offset error correction value. This register is a 2’s complement, left justified,
16-bit value. The value in the offset correction registers (OFS) is subtracted from the
conversion and the result is transferred into the result registers (Rn). If the result is above
the maximum or below the minimum result value, it is forced to the appropriate limit for
the current mode of operation.
Addresses: ADC0_OFS is 4003_B000h base + 28h offset = 4003_B028h
ADC1_OFS is 400B_B000h base + 28h offset = 400B_B028h
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
OFS
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 0 0 0 1 0 0
Chapter 32 Analog-to-Digital Converter (ADC)
K10 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc. 765