MCF5272 Просмотр технического описания (PDF) - Motorola => Freescale

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MCF5272

ColdFire® Integrated Microprocessor User’s Manual

Motorola => Freescale 

CONTENTS

Paragraph

Number

Title

Page

Number

2.2

2.2.1

2.2.1.1

2.2.1.2

2.2.1.3

2.2.1.4

2.2.1.5

2.2.1.6

2.2.2

2.2.2.1

2.2.2.2

2.2.2.3

2.2.2.4

2.2.2.5

2.2.2.6

2.2.2.7

2.3

2.4

2.4.1

2.4.2

2.5

2.6

2.6.1

2.7

2.7.1

2.7.2

2.7.3

2.7.4

2.7.5

2.8

2.8.1

2.8.2

Programming Model ........................................................................................... 2-5

User Programming Model .............................................................................. 2-6

Data Registers (D0–D7) ............................................................................. 2-6

Address Registers (A0–A6) ........................................................................ 2-6

Stack Pointer (A7, SP) ................................................................................ 2-7

Program Counter (PC) ................................................................................ 2-7

Condition Code Register (CCR) ................................................................. 2-7

MAC Programming Model......................................................................... 2-8

Supervisor Programming Model..................................................................... 2-8

Status Register (SR).................................................................................... 2-8

Vector Base Register (VBR) ...................................................................... 2-9

Cache Control Register (CACR) ................................................................ 2-9

Access Control Registers (ACR0–ACR1)................................................ 2-10

ROM Base Address Register (ROMBAR) ............................................... 2-10

RAM Base Address Register (RAMBAR) ............................................... 2-10

Module Base Address Register (MBAR) ................................................. 2-10

Integer Data Formats......................................................................................... 2-10

Organization of Data in Registers..................................................................... 2-10

Organization of Integer Data Formats in Registers ...................................... 2-11

Organization of Integer Data Formats in Memory ....................................... 2-12

Addressing Mode Summary ............................................................................. 2-12

Instruction Set Summary................................................................................... 2-13

Instruction Set Summary .............................................................................. 2-16

Instruction Timing ............................................................................................ 2-19

MOVE Instruction Execution Times ............................................................ 2-20

Execution Timings—One-Operand Instructions .......................................... 2-22

Execution Timings—Two-Operand Instructions.......................................... 2-23

Miscellaneous Instruction Execution Times................................................. 2-24

Branch Instruction Execution Times ............................................................ 2-25

Exception Processing Overview ....................................................................... 2-26

Exception Stack Frame Definition................................................................ 2-28

Processor Exceptions .................................................................................... 2-29

3.1

3.1.1

3.1.2

3.1.3

3.1.4

3.2

Chapter 3

Hardware Multiply/Accumulate (MAC) Unit

Overview............................................................................................................. 3-1

MAC Programming Model............................................................................. 3-2

General Operation........................................................................................... 3-3

MAC Instruction Set Summary ...................................................................... 3-4

Data Representation........................................................................................ 3-5

MAC Instruction Execution Timings.................................................................. 3-5

vi

MCF5272 User’s Manual

MOTOROLA

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