NXP Semiconductors KL25 Series - ADC Minus-Side Gain Register (Adcx_Mg)

ADCx_PG field descriptions
Field Description
31–16
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
15–0
PG
Plus-Side Gain
28.3.10 ADC Minus-Side Gain Register (ADCx_MG)
The Minus-Side Gain Register (MG) contains the gain error correction for the minus-side
input in differential mode. This register is ignored in single-ended mode. MG, a 16-bit
real number in binary format, is the gain adjustment factor, with the radix point fixed
between ADMG15 and ADMG14. This register must be written by the user with the
value described in the calibration procedure. Otherwise, the gain error specifications may
not be met.
Address: 4003_B000h base + 30h offset = 4003_B030h
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
MG
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0
ADCx_MG field descriptions
Field Description
31–16
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
15–0
MG
Minus-Side Gain
28.3.11 ADC Plus-Side General Calibration Value Register
(ADCx_CLPD)
The Plus-Side General Calibration Value Registers (CLPx) contain calibration
information that is generated by the calibration function. These registers contain seven
calibration values of varying widths: CLP0[5:0], CLP1[6:0], CLP2[7:0], CLP3[8:0],
CLP4[9:0], CLPS[5:0], and CLPD[5:0]. CLPx are automatically set when the self-
calibration sequence is done, that is, CAL is cleared. If these registers are written by the
user after calibration, the linearity error specifications may not be met.
Chapter 28 Analog-to-Digital Converter (ADC)
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
Freescale Semiconductor, Inc. 475