trigger mode. See the chip configuration information about the number of SC1n registers
specific to this device. The SC1n registers have identical fields, and are used in a "ping-
pong" approach to control ADC operation.
At any one point in time, only one of the SC1n registers is actively controlling ADC
conversions. Updating SC1A while SC1n is actively controlling a conversion is allowed,
and vice-versa for any of the SC1n registers specific to this MCU.
Writing SC1A while SC1A is actively controlling a conversion aborts the current
conversion. In Software Trigger mode, when SC2[ADTRG]=0, writes to SC1A
subsequently initiate a new conversion, if SC1[ADCH] contains a value other than all 1s.
Writing any of the SC1n registers while that specific SC1n register is actively controlling
a conversion aborts the current conversion. None of the SC1B-SC1n registers are used for
software trigger operation and therefore writes to the SC1B–SC1n registers do not initiate
a new conversion.
Address: 4003_B000h base + 0h offset + (4d × i), where i=0d to 1d
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
COCO
AIEN DIFF ADCH
W
Reset
0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1
ADCx_SC1n field descriptions
Field Description
31–8
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
7
COCO
Conversion Complete Flag
Table continues on the next page...
Chapter 28 Analog-to-Digital Converter (ADC)
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
Freescale Semiconductor, Inc. 463
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