Information

Section Number Title Page
Chapter 31
Analog-to-Digital Converter (ADC)
31.1 Introduction...................................................................................................................................................................579
31.1.1 Features........................................................................................................................................................579
31.1.2 Block diagram..............................................................................................................................................580
31.2 ADC Signal Descriptions..............................................................................................................................................581
31.2.1 Analog power (VDDA)................................................................................................................................582
31.2.2 Analog ground (VSSA)................................................................................................................................582
31.2.3 Voltage reference select...............................................................................................................................582
31.2.4 Analog channel inputs (ADx)......................................................................................................................583
31.2.5 Differential analog channel inputs (DADx).................................................................................................583
31.3 Register Definition........................................................................................................................................................583
31.3.1 ADC status and control registers 1 (ADCx_SC1n)......................................................................................585
31.3.2 ADC configuration register 1 (ADCx_CFG1).............................................................................................588
31.3.3 Configuration register 2 (ADCx_CFG2)......................................................................................................590
31.3.4 ADC data result register (ADCx_Rn)..........................................................................................................591
31.3.5 Compare value registers (ADCx_CVn).......................................................................................................592
31.3.6 Status and control register 2 (ADCx_SC2)..................................................................................................593
31.3.7 Status and control register 3 (ADCx_SC3)..................................................................................................595
31.3.8 ADC offset correction register (ADCx_OFS)..............................................................................................596
31.3.9 ADC plus-side gain register (ADCx_PG)....................................................................................................597
31.3.10 ADC minus-side gain register (ADCx_MG)...............................................................................................597
31.3.11 ADC plus-side general calibration value register (ADCx_CLPD)..............................................................598
31.3.12 ADC plus-side general calibration value register (ADCx_CLPS)...............................................................599
31.3.13 ADC plus-side general calibration value register (ADCx_CLP4)...............................................................599
31.3.14 ADC plus-side general calibration value register (ADCx_CLP3)...............................................................600
31.3.15 ADC plus-side general calibration value register (ADCx_CLP2)...............................................................600
31.3.16 ADC plus-side general calibration value register (ADCx_CLP1)...............................................................601
31.3.17 ADC plus-side general calibration value register (ADCx_CLP0)...............................................................601
K20 Sub-Family Reference Manual, Rev. 2, Feb 2012
Freescale Semiconductor, Inc. 23