NXP Semiconductors ColdFire MCF52235 Manuel utilisateur

MCF52235 ColdFire®Integrated

Microcontroller Reference Manual

Devices Supported:

MCF52230

MCF52231

MCF52233

MCF52234

MCF52235

Document Number:

MCF52235RM

Rev. 0

04/2006

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Document Number: MCF52235RM

Rev. 0

04/2006

MCF52235 ColdFire® Integrated Microcontroller Reference Manual, Rev. 0

Freescale Semiconductor iii

Preliminary

Table of Contents

Chapter 1

Overview

1.1 MCF52235 Family Configurations ...................................................................................................2

1.2 Block Diagram ..................................................................................................................................2

1.3 Part Numbers and Packaging ............................................................................................................4

1.4 Features .............................................................................................................................................4

Chapter 2

Signal Descriptions

2.1 Introduction .......................................................................................................................................1

2.2 Overview ...........................................................................................................................................1

2.3 Reset Signals .....................................................................................................................................8

2.4 PLL and Clock Signals ......................................................................................................................8

2.5 Mode Selection ..................................................................................................................................8

2.6 External Interrupt Signals ..................................................................................................................8

2.7 Queued Serial Peripheral Interface (QSPI) .......................................................................................9

2.8 Fast Ethernet Controller PHY Signals ............................................................................................10

2.9 I2C I/O Signals ................................................................................................................................10

2.10 UART Module Signals ....................................................................................................................11

2.11 DMA Timer Signals ........................................................................................................................11

2.12 ADC Signals ....................................................................................................................................11

2.13 General Purpose Timer Signals .......................................................................................................12

2.14 Pulse Width Modulator Signals .......................................................................................................12

2.15 Debug Support Signals ....................................................................................................................12

2.16 EzPort Signal Descriptions ..............................................................................................................13

2.17 Power and Ground Pins ...................................................................................................................14

Chapter 3

ColdFire Core

3.1 Processor Pipelines ............................................................................................................................1

3.2 Memory Map/Register Description ...................................................................................................2

3.3 Instruction Set Architecture (ISA_A+) .............................................................................................8

3.4 Exception Processing Overview ........................................................................................................8

3.5 Exception Stack Frame Definition ..................................................................................................10

3.6 Processor Exceptions .......................................................................................................................11

3.7 Instruction Execution Timing ..........................................................................................................18

3.8 Standard One Operand Instruction Execution Times ......................................................................20

MCF52235 ColdFire® Integrated Microcontroller Reference Manual, Rev. 0

iv Freescale Semiconductor

Preliminary

3.9 Standard Two Operand Instruction Execution Times ......................................................................21

3.10 Miscellaneous Instruction Execution Times ...................................................................................22

3.11 EMAC Instruction Execution Times ...............................................................................................23

3.12 Branch Instruction Execution Times ...............................................................................................24

Chapter 4

Enhanced Multiply-Accumulate Unit (EMAC)

4.1 Multiply-Accumulate Unit ................................................................................................................1

4.2 Introduction to the MAC ...................................................................................................................2

4.3 General Operation .............................................................................................................................2

4.4 Memory Map/Register Definition .....................................................................................................5

4.5 EMAC Instruction Set Summary ....................................................................................................11

Chapter 5

Cryptographic Acceleration Unit

5.1 CAU Registers ...................................................................................................................................1

5.2 CAU Operation .................................................................................................................................2

5.3 CAU Commands ...............................................................................................................................2

5.4 CAU Equate Values ...........................................................................................................................7

Chapter 6

Random Number Generator Accelerator (RNGA)

6.1 Overview ...........................................................................................................................................1

6.2 Features .............................................................................................................................................2

6.3 Modes of Operation ...........................................................................................................................2

6.4 Memory Map/Register Definition .....................................................................................................3

6.5 Functional Description ....................................................................................................................11

6.6 Initialization/Application Information ............................................................................................12

Chapter 7

Clock Module

7.1 Introduction .......................................................................................................................................1

7.2 Features .............................................................................................................................................1

7.3 Modes of Operation ...........................................................................................................................1

7.4 Low-power Mode Operation .............................................................................................................2

7.5 Block Diagram ..................................................................................................................................2

7.6 Signal Descriptions ...........................................................................................................................4

7.7 Memory Map and Registers ..............................................................................................................5

7.8 Functional Description ....................................................................................................................11

Chapter 8

Real Time Clock

8.1 Introduction .......................................................................................................................................1

8.2 Memory Map/Register Definition .....................................................................................................2

MCF52235 ColdFire® Integrated Microcontroller Reference Manual, Rev. 0

Freescale Semiconductor v

Preliminary

8.3 Functional Description ....................................................................................................................12

8.4 Initialization/Application Information ............................................................................................13

Chapter 9

Power Management

9.1 Introduction .......................................................................................................................................1

9.2 Memory Map/Register Definition .....................................................................................................1

9.3 IPS Bus Timeout Monitor ...............................................................................................................10

9.4 Functional Description ....................................................................................................................11

Chapter 10

Reset Controller Module

10.1 Introduction .......................................................................................................................................1

10.2 Features .............................................................................................................................................1

10.3 Block Diagram ..................................................................................................................................1

10.4 Signals ...............................................................................................................................................2

10.5 Memory Map and Registers ..............................................................................................................2

10.6 Functional Description ......................................................................................................................5

Chapter 11

Static RAM (SRAM)

11.1 Introduction .......................................................................................................................................1

11.2 Memory Map/Register Description ...................................................................................................1

11.3 Initialization/Application Information ..............................................................................................3

Chapter 12

Chip Configuration Module (CCM)

12.1 Introduction .......................................................................................................................................1

12.2 External Signal Descriptions .............................................................................................................2

12.3 Memory Map/Register Definition .....................................................................................................2

12.4 Functional Description ......................................................................................................................5

12.5 Reset ..................................................................................................................................................6

Chapter 13

System Control Module (SCM)

13.1 Introduction .......................................................................................................................................1

13.2 Overview ...........................................................................................................................................1

13.3 Features .............................................................................................................................................1

13.4 Memory Map and Register Definition ..............................................................................................2

13.5 Register Descriptions ........................................................................................................................3

13.6 Internal Bus Arbitration ..................................................................................................................11

13.7 System Access Control Unit (SACU) .............................................................................................14

MCF52235 ColdFire® Integrated Microcontroller Reference Manual, Rev. 0

vi Freescale Semiconductor

Preliminary

Chapter 14

General Purpose I/O Module

14.1 Introduction .......................................................................................................................................1

14.2 Overview ...........................................................................................................................................2

14.3 Features .............................................................................................................................................3

14.4 Signal Descriptions ...........................................................................................................................3

14.5 Memory Map/Register Definition .....................................................................................................4

14.6 Register Descriptions ........................................................................................................................6

14.7 Ports Interrupts ................................................................................................................................15

Chapter 15

Interrupt Controller Module

15.1 68K/ColdFire Interrupt Architecture Overview ................................................................................1

15.2 Memory Map .....................................................................................................................................4

15.3 Register Descriptions ........................................................................................................................5

15.4 Low-Power Wakeup Operation .......................................................................................................18

Chapter 16

Edge Port Module (EPORT)

16.1 Introduction .......................................................................................................................................1

16.2 Low-Power Mode Operation .............................................................................................................2

16.3 Interrupt/GPIO Pin Descriptions .......................................................................................................2

16.4 Memory Map/Register Definition .....................................................................................................3

Chapter 17

ColdFire Flash Module (CFM)

17.1 Introduction .......................................................................................................................................1

17.2 External Signal Description ..............................................................................................................3

17.3 Memory Map and Register Definition ..............................................................................................3

17.4 Functional Description ....................................................................................................................14

Chapter 18

Fast Ethernet Controller (FEC)

18.1 Overview ...........................................................................................................................................1

18.2 Modes of Operation ...........................................................................................................................1

18.3 FEC Top-Level Functional Diagram .................................................................................................3

18.4 Functional Description ......................................................................................................................4

18.5 Programming Model .......................................................................................................................17

18.6 Buffer Descriptors ...........................................................................................................................42

Chapter 19

Ethernet Physical Transceiver (EPHY) Block Description

19.1 Introduction .......................................................................................................................................1

19.2 External Signal Descriptions .............................................................................................................3

MCF52235 ColdFire® Integrated Microcontroller Reference Manual, Rev. 0

Freescale Semiconductor vii

Preliminary

19.3 Memory Map and Register Descriptions ..........................................................................................5

19.4 Functional Description ....................................................................................................................21

Chapter 20

DMA Controller Module

20.1 Introduction .......................................................................................................................................1

20.2 M-bus Priority Level (MPL) .............................................................................................................4

20.3 DMA Transfer Overview ..................................................................................................................4

20.4 Memory Map/Register Definition .....................................................................................................5

20.5 Functional Description ....................................................................................................................16

Chapter 21

EzPort

21.1 Features .............................................................................................................................................1

21.2 Modes of Operation ...........................................................................................................................1

21.3 External Signal Description ..............................................................................................................2

21.4 Command Definition .........................................................................................................................3

21.5 Functional Description ......................................................................................................................7

21.6 Initialization/Application Information ..............................................................................................8

Chapter 22

Programmable Interrupt Timer Modules (PIT0–PIT1)

22.1 Introduction .......................................................................................................................................1

22.2 Memory Map/Register Definition .....................................................................................................2

22.3 Functional Description ......................................................................................................................5

Chapter 23

General Purpose Timer Module (GPT)

23.1 Introduction .......................................................................................................................................1

23.2 Features .............................................................................................................................................1

23.3 Block Diagram ..................................................................................................................................2

23.4 Low-Power Mode Operation .............................................................................................................3

23.5 Signal Description .............................................................................................................................3

23.6 Memory Map and Registers ..............................................................................................................4

23.7 Functional Description ....................................................................................................................17

23.8 Reset ................................................................................................................................................21

23.9 Interrupts .........................................................................................................................................21

Chapter 24

DMA Timers (DTIM0–DTIM3)

24.1 Introduction .......................................................................................................................................1

24.2 Memory Map/Register Definition .....................................................................................................2

24.3 Functional Description ......................................................................................................................8

24.4 Initialization/Application Information ..............................................................................................8

MCF52235 ColdFire® Integrated Microcontroller Reference Manual, Rev. 0

viii Freescale Semiconductor

Preliminary

Chapter 25

Queued Serial Peripheral Interface (QSPI)

25.1 Introduction .......................................................................................................................................1

25.2 External Signal Description ..............................................................................................................2

25.3 Memory Map/Register Definition .....................................................................................................3

25.4 Functional Description ....................................................................................................................10

25.5 Initialization/Application Information ............................................................................................16

Chapter 26

UART Modules

26.1 Introduction .......................................................................................................................................1

26.2 External Signal Description ..............................................................................................................3

26.3 Memory Map/Register Definition .....................................................................................................4

26.4 Functional Description ....................................................................................................................18

Chapter 27

I2C Interface

27.1 Introduction .......................................................................................................................................1

27.2 Overview ...........................................................................................................................................1

27.3 Features .............................................................................................................................................1

27.4 I2C System Configuration .................................................................................................................3

27.5 Memory Map/Register Definition .....................................................................................................7

27.6 I2C Programming Examples ............................................................................................................12

Chapter 28

Analog-to-Digital Converter (ADC)

28.1 Introduction .......................................................................................................................................1

28.2 Features .............................................................................................................................................1

28.3 Block Diagram ..................................................................................................................................1

28.4 Functional Description ......................................................................................................................2

28.5 Register Definitions .........................................................................................................................18

Chapter 29

Pulse Width Modulation (PWM) Module

29.1 Introduction .......................................................................................................................................1

29.2 Memory Map/Register Definition .....................................................................................................2

29.3 Functional Description ....................................................................................................................12

Chapter 30

FlexCAN

30.1 Introduction .......................................................................................................................................1

30.2 External Signal Description ..............................................................................................................5

30.3 Memory Map/Register Definition .....................................................................................................5

30.4 Functional Overview .......................................................................................................................20

30.5 FlexCAN Initialization Sequence ....................................................................................................28

MCF52235 ColdFire® Integrated Microcontroller Reference Manual, Rev. 0

Freescale Semiconductor ix

Preliminary

Chapter 31

Debug Module

31.1 Introduction .......................................................................................................................................1

31.2 External Signal Description ..............................................................................................................2

31.3 Real-Time Trace Support ..................................................................................................................3

31.4 Memory Map/Register Definition .....................................................................................................6

31.5 Background Debug Mode (BDM) ...................................................................................................17

31.6 Real-Time Debug Support ...............................................................................................................37

31.7 Processor Status, DDATA Definition ..............................................................................................40

31.8 Freescale-Recommended BDM Pinout ...........................................................................................44

Chapter 32

IEEE 1149.1 Test Access Port (JTAG)

32.1 Introduction .......................................................................................................................................1

32.2 External Signal Description ..............................................................................................................2

32.3 Memory Map/Register Definition .....................................................................................................4

32.4 Functional Description ......................................................................................................................6

32.5 Initialization/Application Information ............................................................................................10

Appendix A

MCF52235 ColdFire® Integrated Microcontroller Reference Manual, Rev. 0

xFreescale Semiconductor

Preliminary

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