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Section Page
MC68331TS/D 3
1 Introduction 1
1.1 Features ......................................................................................................................................4
1.2 Block Diagram .............................................................................................................................5
1.3 Pin Assignments ..........................................................................................................................6
1.4 Address Map ...............................................................................................................................8
1.5 Intermodule Bus ..........................................................................................................................8
2 Signal Descriptions 9
2.1 Pin Characteristics ......................................................................................................................9
2.2 MCU Power Connections ..........................................................................................................10
2.3 MCU Driver Types .....................................................................................................................10
2.4 Signal Characteristics ................................................................................................................10
2.5 Signal Function ..........................................................................................................................11
3 System Integration Module 14
3.1 Overview ...................................................................................................................................14
3.2 System Configuration and Protection ........................................................................................16
3.3 System Clock ............................................................................................................................21
3.4 External Bus Interface ...............................................................................................................24
3.5 Chip Selects ..............................................................................................................................28
3.6 General-Purpose Input/Output ..................................................................................................35
3.7 Resets .......................................................................................................................................37
3.8 Interrupts ...................................................................................................................................39
3.9 Factory Test Block .....................................................................................................................41
4 Central Processor Unit 43
4.1 Overview ...................................................................................................................................43
4.2 Programming Model ..................................................................................................................43
4.3 Status Register ..........................................................................................................................45
4.4 Data Types ................................................................................................................................45
4.5 Addressing Modes .....................................................................................................................45
4.6 Instruction Set Summary ...........................................................................................................46
4.7 Background Debugging Mode ...................................................................................................50
5 Queued Serial Module 51
5.1 Overview ...................................................................................................................................51
5.2 Pin Function ..............................................................................................................................52
5.3 QSM Registers ..........................................................................................................................53
5.4 QSPI Submodule .......................................................................................................................56
5.5 SCI Submodule .........................................................................................................................64
6 General-Purpose Timer Module 70
6.1 Overview ...................................................................................................................................70
6.2 Capture/Compare Unit ..............................................................................................................71
6.3 Pulse-Width Modulator ..............................................................................................................74
6.4 GPT Registers ...........................................................................................................................75
7 Summary of Changes 82
TABLE OF CONTENTS
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
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