Datasheet

MC9S08EL32 Series and MC9S08SL16 Series Data Sheet, Rev. 3
12 Freescale Semiconductor
Section Number Title Page
8.4.1 Operational Modes ..........................................................................................................123
8.4.2 Mode Switching ..............................................................................................................125
8.4.3 Bus Frequency Divider ...................................................................................................126
8.4.4 Low Power Bit Usage .....................................................................................................126
8.4.5 Internal Reference Clock ................................................................................................126
8.4.6 Optional External Reference Clock ................................................................................126
8.4.7 Fixed Frequency Clock ...................................................................................................127
Chapter 9
5-V Analog Comparator (S08ACMPV2)
9.1 Introduction ...................................................................................................................................129
9.1.1 ACMPx Configuration Information ................................................................................129
9.1.2 ACMP1/TPM1 Configuration Information ....................................................................129
9.1.3 Features ...........................................................................................................................131
9.1.4 Modes of Operation ........................................................................................................131
9.1.5 Block Diagram ................................................................................................................132
9.2 External Signal Description ..........................................................................................................133
9.3 Memory Map ................................................................................................................................133
9.3.1 Register Descriptions ......................................................................................................133
9.4 Functional Description ..................................................................................................................135
Chapter 10
Analog-to-Digital Converter (S08ADCV1)
10.1 Introduction ...................................................................................................................................137
10.1.1 Channel Assignments .....................................................................................................137
10.1.2 Alternate Clock ...............................................................................................................138
10.1.3 Hardware Trigger ............................................................................................................138
10.1.4 Temperature Sensor ........................................................................................................138
10.1.5 Features ...........................................................................................................................141
10.1.6 Block Diagram ................................................................................................................141
10.2 External Signal Description ..........................................................................................................142
10.2.1 Analog Power (V
DDAD
) ..................................................................................................143
10.2.2 Analog Ground (V
SSAD
) .................................................................................................143
10.2.3 Voltage Reference High (V
REFH
) ...................................................................................143
10.2.4 Voltage Reference Low (V
REFL
) ....................................................................................143
10.2.5 Analog Channel Inputs (ADx) ........................................................................................143
10.3 Register Definition ........................................................................................................................143
10.3.1 Status and Control Register 1 (ADCSC1) ......................................................................143
10.3.2 Status and Control Register 2 (ADCSC2) ......................................................................145
10.3.3 Data Result High Register (ADCRH) .............................................................................146
10.3.4 Data Result Low Register (ADCRL) ..............................................................................146
10.3.5 Compare Value High Register (ADCCVH) ....................................................................147