MC9S08AC16_09 Datasheet, PDF (12/330 Pages) Freescale Semiconductor, Inc – HCS08 Microcontrollers

Section Number
Title
Page
Chapter 7
Central Processor Unit (S08CPUV2)
7.1 Introduction ...................................................................................................................................107
7.1.1 Features ...........................................................................................................................107
7.2 Programmer’s Model and CPU Registers .....................................................................................108
7.2.1 Accumulator (A) .............................................................................................................108
7.2.2 Index Register (H:X) ......................................................................................................108
7.2.3 Stack Pointer (SP) ...........................................................................................................109
7.2.4 Program Counter (PC) ....................................................................................................109
7.2.5 Condition Code Register (CCR) .....................................................................................109
7.3 Addressing Modes .........................................................................................................................110
7.3.1 Inherent Addressing Mode (INH) ................................................................................... 111
7.3.2 Relative Addressing Mode (REL) ..................................................................................111
7.3.3 Immediate Addressing Mode (IMM) ..............................................................................111
7.3.4 Direct Addressing Mode (DIR) ......................................................................................111
7.3.5 Extended Addressing Mode (EXT) ................................................................................ 111
7.3.6 Indexed Addressing Mode ..............................................................................................111
7.4 Special Operations .........................................................................................................................112
7.4.1 Reset Sequence ...............................................................................................................113
7.4.2 Interrupt Sequence ..........................................................................................................113
7.4.3 Wait Mode Operation ......................................................................................................114
7.4.4 Stop Mode Operation ......................................................................................................114
7.4.5 BGND Instruction ...........................................................................................................114
7.5 HCS08 Instruction Set Summary ..................................................................................................115
Chapter 8
Internal Clock Generator (S08ICGV4)
8.1 Introduction ...................................................................................................................................129
8.1.1 Features ...........................................................................................................................129
8.1.2 Modes of Operation ........................................................................................................130
8.1.3 Block Diagram ................................................................................................................131
8.2 External Signal Description ..........................................................................................................131
8.2.1 EXTAL — External Reference Clock / Oscillator Input ................................................131
8.2.2 XTAL — Oscillator Output ............................................................................................131
8.2.3 External Clock Connections ...........................................................................................132
8.2.4 External Crystal/Resonator Connections ........................................................................132
8.3 Register Definition ........................................................................................................................132
8.3.1 ICG Control Register 1 (ICGC1) ....................................................................................133
8.3.2 ICG Control Register 2 (ICGC2) ....................................................................................134
8.3.3 ICG Status Register 1 (ICGS1) .......................................................................................135
8.3.4 ICG Status Register 2 (ICGS2) .......................................................................................136
8.3.5 ICG Filter Registers (ICGFLTU, ICGFLTL) ..................................................................136
MC9S08AC16 Series Data Sheet, Rev. 8
12
Freescale Semiconductor