SH7641 datasheet(13/1040 Pages) RENESAS

13 / 1040 page

Rev. 2.00 Mar. 15, 2007 Page xiii of l

Contents

Section 1 Overview..................................................................................................1

1.1

Features.................................................................................................................................. 1

1.2

Block Diagram ....................................................................................................................... 7

1.3

Pin Assignments..................................................................................................................... 8

1.4

Pin functions .......................................................................................................................... 9

Section 2 CPU........................................................................................................25

2.1

Registers............................................................................................................................... 25

2.1.1

General Registers .................................................................................................... 29

2.1.2

Control Registers .................................................................................................... 31

2.1.3

System Registers..................................................................................................... 35

2.1.4

DSP Registers ......................................................................................................... 35

2.2

Data Formats........................................................................................................................ 42

2.2.1

2.2.2

DSP-Type Data Formats ......................................................................................... 42

2.2.3

Memory Data Formats ............................................................................................ 44

2.3

Features of CPU Core Instructions ...................................................................................... 44

2.4

Instruction Formats .............................................................................................................. 48

2.4.1

CPU Instruction Addressing Modes ....................................................................... 48

2.4.2

DSP Data Addressing ............................................................................................. 51

2.4.3

CPU Instruction Formats ........................................................................................ 58

2.4.4

DSP Instruction Formats......................................................................................... 61

2.5

Instruction Set ...................................................................................................................... 67

2.5.1

CPU Instruction Set ................................................................................................ 67

2.6

DSP Extended-Function Instructions ................................................................................... 81

2.6.1

Introduction............................................................................................................. 81

2.6.2

Added CPU System Control Instructions ............................................................... 82

2.6.3

Single and Double Data Transfer for DSP Data Instructions.................................. 84

2.6.4

DSP Operation Instruction Set................................................................................ 88

Section 3 DSP Operation .......................................................................................99

3.1

Data Operations of DSP Unit............................................................................................... 99

3.1.1

ALU Fixed-Point Operations .................................................................................. 99

3.1.2

ALU Integer Operations ....................................................................................... 104

3.1.3

ALU Logical Operations....................................................................................... 105

3.1.4

Fixed-Point Multiply Operation............................................................................ 107

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