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MC68HC16Z2VPV25: DescriptionM68HC16Z Series; File Size3MB，500 Pages; ManufacturerFREESCALE (NXP)

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M68HC16Z Series

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Freescale Semiconductor, Inc...

M68HC16Z Series

User’s Manual

N O N - D I S C L O S U R E

MC68HC16Z1

MC68CK16Z1

MC68CM16Z1

MC68HC16Z2

MC68HC16Z3

MC68HC16Z4

MC68CK16Z4

A G R E E M E N T

HC16

R E Q U I R E D

Order this document by

MC68HC16ZUM/AD

Freescale Semiconductor, Inc.

TABLE OF CONTENTS

Paragraph

Title

SECTION 1

INTRODUCTION

SECTION 2

NOMENCLATURE

2.1

2.2

2.3

2.4

Symbols and Operators .............................................................................2-1

CPU16 Register Mnemonics .....................................................................2-2

Conventions ..............................................................................................2-6

SECTION 3

OVERVIEW

3.1

3.1.1

3.1.2

3.1.3

3.1.4

3.1.5

3.1.6

3.1.7

3.1.8

3.2

3.3

3.4

3.5

3.6

3.7

M68HC16 Z-Series MCU Features ...........................................................3-1

Central Processor Unit (CPU16/CPU16L) .........................................3-1

System Integration Module (SIM/SIML) ............................................3-1

Standby RAM (SRAM) ......................................................................3-1

Masked ROM Module (MRM) — (MC68HC16Z2/Z3 Only) ...............3-2

Analog-to-Digital Converter (ADC) ....................................................3-2

Queued Serial Module (QSM) ...........................................................3-2

Multichannel Communication Interface (MCCI) —

(MC68HC16Z4/CKZ4 Only) ..............................................................3-2

General-Purpose Timer (GPT) ..........................................................3-2

Intermodule Bus ........................................................................................3-2

System Block Diagram and Pin Assignment Diagrams .............................3-2

Pin Descriptions ......................................................................................3-11

Signal Descriptions ..................................................................................3-13

Internal Register Map ..............................................................................3-16

Address Space Maps ..............................................................................3-19

SECTION 4

CENTRAL PROCESSOR UNIT

4.1

4.2

4.2.1

4.2.2

4.2.3

4.2.4

4.2.5

4.2.6

General ......................................................................................................4-1

Accumulators .....................................................................................4-3

Index Registers .................................................................................4-3

Stack Pointer .....................................................................................4-3

Program Counter ...............................................................................4-3

Condition Code Register ...................................................................4-4

Address Extension Register and Address Extension Fields .............4-5

Page

Freescale Semiconductor, Inc...

M68HC16 Z SERIES

USER’S MANUAL

For More Information On This Product,

Go to: www.freescale.com

Freescale Semiconductor, Inc.

TABLE OF CONTENTS

Paragraph

(Continued)

Title

Page

4.2.7

Multiply and Accumulate Registers ...................................................4-5

4.3

Memory Management ...............................................................................4-5

4.3.1

Address Extension ............................................................................4-6

4.3.2

Extension Fields ................................................................................4-6

4.4

Data Types ................................................................................................4-6

4.5

Memory Organization ................................................................................4-7

4.6

Addressing Modes .....................................................................................4-8

4.6.1

Immediate Addressing Modes ...........................................................4-9

4.6.2

Extended Addressing Modes ..........................................................4-10

4.6.3

Indexed Addressing Modes .............................................................4-10

4.6.4

Inherent Addressing Mode ..............................................................4-10

4.6.5

Accumulator Offset Addressing Mode .............................................4-10

4.6.6

Relative Addressing Modes .............................................................4-10

4.6.7

Post-Modified Index Addressing Mode ............................................4-10

4.6.8

Use of CPU16 Indexed Mode to Replace M68HC11 Direct Mode ..4-11

4.7

Instruction Set .........................................................................................4-11

4.7.1

Instruction Set Summary .................................................................4-11

4.8

Comparison of CPU16 and M68HC11 CPU Instruction Sets ..................4-31

4.9

Instruction Format ...................................................................................4-33

4.10

Execution Model ......................................................................................4-34

4.10.1

Microsequencer ...............................................................................4-35

4.10.2

Instruction Pipeline ..........................................................................4-35

4.10.3

Execution Unit .................................................................................4-35

4.11

Execution Process ...................................................................................4-36

4.11.1

Changes in Program Flow ...............................................................4-36

4.12

Instruction Timing ....................................................................................4-36

4.13

Exceptions ...............................................................................................4-37

4.13.1

Exception Vectors ...........................................................................4-37

4.13.2

Exception Stack Frame ...................................................................4-38

4.13.3

Exception Processing Sequence .....................................................4-39

4.13.4

Types of Exceptions ........................................................................4-39

4.13.4.1

Asynchronous Exceptions .......................................................4-39

4.13.4.2

Synchronous Exceptions .........................................................4-39

4.13.5

Multiple Exceptions .........................................................................4-40

4.13.6

RTI Instruction .................................................................................4-40

4.14

Development Support ..............................................................................4-40

4.14.1

Deterministic Opcode Tracking .......................................................4-40

4.14.1.1

IPIPE0/IPIPE1 Multiplexing .....................................................4-41

4.14.1.2

Combining Opcode Tracking with Other Capabilities ..............4-41

4.14.2

Breakpoints .....................................................................................4-41

4.14.3

Opcode Tracking and Breakpoints ..................................................4-42

M68HC16 Z SERIES

USER’S MANUAL

For More Information On This Product,

Go to: www.freescale.com

Freescale Semiconductor, Inc...

Freescale Semiconductor, Inc.

TABLE OF CONTENTS

Paragraph

(Continued)

Title

Page

Freescale Semiconductor, Inc...

4.14.4

Background Debug Mode ................................................................4-42

4.14.4.1

Enabling BDM .........................................................................4-42

4.14.4.2

BDM Sources ..........................................................................4-42

4.14.4.3

Entering BDM ..........................................................................4-42

4.14.4.4

BDM Commands .....................................................................4-43

4.14.4.5

Returning from BDM ...............................................................4-43

4.14.4.6

BDM Serial Interface ...............................................................4-44

4.15

Recommended BDM Connection ............................................................4-45

4.16

Digital Signal Processing .........................................................................4-45

SECTION 5

SYSTEM INTEGRATION MODULE

5.1

5.2

5.2.1

5.2.2

5.2.3

5.2.4

5.2.5

5.3

5.3.1

5.3.2

5.3.3

5.3.4

5.4

5.4.1

5.4.2

5.4.3

5.4.4

5.4.5

5.4.6

5.4.7

5.4.8

5.5

5.5.1

5.5.1.1

5.5.1.2

5.5.1.3

5.5.1.4

5.5.1.5

5.5.1.6

General ......................................................................................................5-1

System Configuration ................................................................................5-2

Module Mapping ................................................................................5-2

Interrupt Arbitration ............................................................................5-3

Show Internal Cycles .........................................................................5-3

Freeze Operation ..............................................................................5-3

System Clock ............................................................................................5-4

Clock Sources ...................................................................................5-5

Clock Synthesizer Operation .............................................................5-6

External Bus Clock ..........................................................................5-21

Low-Power Operation ......................................................................5-21

System Protection ...................................................................................5-24

Reset Status ....................................................................................5-24

Bus Monitor .....................................................................................5-24

Halt Monitor .....................................................................................5-25

Spurious Interrupt Monitor ...............................................................5-25

Software Watchdog .........................................................................5-25

Periodic Interrupt Timer ...................................................................5-27

Interrupt Priority and Vectoring ........................................................5-28

Low-Power STOP Operation ...........................................................5-29

External Bus Interface .............................................................................5-29

Bus Control Signals .........................................................................5-31

Address Bus ............................................................................5-31

Address Strobe .......................................................................5-31

Data Bus .................................................................................5-31

Data Strobe .............................................................................5-31

Read/Write Signal ...................................................................5-32

Size Signals ............................................................................5-32

M68HC16 Z SERIES

USER’S MANUAL

For More Information On This Product,

Go to: www.freescale.com

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