Datasheet

Section number Title Page
18.5 Initialization/application information.............................................................................................................................519
Chapter 19
Analog-to-digital converter (ADC)
19.1 Introduction.....................................................................................................................................................................523
19.1.1 Features............................................................................................................................................................523
19.1.2 Block Diagram.................................................................................................................................................524
19.2 External Signal Description............................................................................................................................................524
19.2.1 Analog Power (VDDA)...................................................................................................................................525
19.2.2 Analog Ground (VSSA)...................................................................................................................................525
19.2.3 Voltage Reference High (VREFH)..................................................................................................................525
19.2.4 Voltage Reference Low (VREFL)...................................................................................................................525
19.2.5 Analog Channel Inputs (ADx).........................................................................................................................525
19.3 ADC Control Registers...................................................................................................................................................526
19.3.1 Status and Control Register 1 (ADC_SC1)......................................................................................................526
19.3.2 Status and Control Register 2 (ADC_SC2)......................................................................................................528
19.3.3 Status and Control Register 3 (ADC_SC3)......................................................................................................529
19.3.4 Status and Control Register 4 (ADC_SC4)......................................................................................................530
19.3.5 Conversion Result High Register (ADC_RH).................................................................................................531
19.3.6 Conversion Result Low Register (ADC_RL)..................................................................................................532
19.3.7 Compare Value High Register (ADC_CVH)...................................................................................................533
19.3.8 Compare Value Low Register (ADC_CVL)....................................................................................................533
19.3.9 Pin Control 1 Register (ADC_APCTL1).........................................................................................................534
19.3.10 Pin Control 2 Register (ADC_APCTL2).........................................................................................................535
19.4 Functional description.....................................................................................................................................................536
19.4.1 Clock select and divide control........................................................................................................................537
19.4.2 Input select and pin control..............................................................................................................................537
19.4.3 Hardware trigger..............................................................................................................................................538
19.4.4 Conversion control...........................................................................................................................................538
19.4.4.1 Initiating conversions.....................................................................................................................538
MC9S08PA60 Reference Manual, Rev. 1, 9/2012
Freescale Semiconductor, Inc. 25