
MC9S08GB/GT Data Sheet, Rev. 2.3
Freescale Semiconductor
7
Chapter 1
Introduction
1.1
1.2
Overview .........................................................................................................................................17
Features ...........................................................................................................................................17
1.2.1
Standard Features of the HCS08 Family .........................................................................17
1.2.2
Features of MC9S08GB/GT Series of MCUs .................................................................17
1.2.3
Devices in the MC9S08GB/GT Series ............................................................................18
MCU Block Diagrams .....................................................................................................................19
System Clock Distribution ..............................................................................................................21
1.3
1.4
Chapter 2
Pins and Connections
2.1
2.2
2.3
Introduction .....................................................................................................................................23
Device Pin Assignment ...................................................................................................................23
Recommended System Connections ...............................................................................................26
2.3.1
Power ...............................................................................................................................28
2.3.2
Oscillator ..........................................................................................................................28
2.3.3
Reset ................................................................................................................................28
2.3.4
Background / Mode Select (PTG0/BKGD/MS) ..............................................................29
2.3.5
General-Purpose I/O and Peripheral Ports .......................................................................29
2.3.6
Signal Properties Summary .............................................................................................31
Chapter 3
Modes of Operation
3.1
3.2
3.3
3.4
3.5
3.6
Introduction .....................................................................................................................................33
Features ...........................................................................................................................................33
Run Mode ........................................................................................................................................33
Active Background Mode ................................................................................................................33
Wait Mode .......................................................................................................................................34
Stop Modes ......................................................................................................................................34
3.6.1
Stop1 Mode ......................................................................................................................35
3.6.2
Stop2 Mode ......................................................................................................................35
3.6.3
Stop3 Mode ......................................................................................................................36
3.6.4
Active BDM Enabled in Stop Mode ................................................................................36
3.6.5
LVD Enabled in Stop Mode .............................................................................................37
3.6.6
On-Chip Peripheral Modules in Stop Modes ...................................................................37
Contents
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Title
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