HCS08 datasheet(11/316 Pages) NXP

11 / 316 page

MC9S08SG8 MCU Series Data Sheet, Rev. 8

Freescale Semiconductor

Contents

Section Number

Title

Page

Chapter 1

Device Overview

1.1

Devices in the MC9S08SG8 Series .................................................................................................21

1.2

MCU Block Diagram ......................................................................................................................22

1.3

System Clock Distribution ..............................................................................................................24

Chapter 2

Pins and Connections

2.1

Device Pin Assignment ...................................................................................................................25

2.2

Recommended System Connections ...............................................................................................27

2.2.1 Power ................................................................................................................................27

2.2.2 Oscillator (XOSC) ............................................................................................................28

2.2.3 RESET Pin ........................................................................................................................28

2.2.4 Background / Mode Select (BKGD/MS) ..........................................................................29

2.2.5 General-Purpose I/O and Peripheral Ports ........................................................................29

Chapter 3

Modes of Operation

3.1

Introduction .....................................................................................................................................33

3.2

Features ...........................................................................................................................................33

3.3

Run Mode ........................................................................................................................................33

3.4

Active Background Mode ...............................................................................................................33

3.5

Wait Mode .......................................................................................................................................34

3.6

Stop Modes ......................................................................................................................................34

3.6.1 Stop3 Mode .......................................................................................................................35

3.6.2 Stop2 Mode .......................................................................................................................36

3.6.3 On-Chip Peripheral Modules in Stop Modes ....................................................................36

Chapter 4

Memory

4.1

MC9S08SG8 Memory Map ............................................................................................................39

4.2

Reset and Interrupt Vector Assignments .........................................................................................40

4.3

Register Addresses and Bit Assignments ........................................................................................41

4.4

RAM ................................................................................................................................................48

4.5

FLASH ............................................................................................................................................48

4.5.1 Features .............................................................................................................................49

4.5.2 Program and Erase Times .................................................................................................49

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