Overview....................................................................................................................................................................... 1

1.2

Block Diagram..............................................................................................................................................................6

1.3

Pin Description ............................................................................................................................................................. 7

1.3.1

Pin Arrangement ............................................................................................................................................. 7

1.3.2

Pin Functions in Each Operating Mode......................................................................................................... 11

1.3.3

Pin Functions................................................................................................................................................. 15

Section 2 CPU.....................................................................................................................................21

2.1

Overview..................................................................................................................................................................... 21

2.1.1

Features ......................................................................................................................................................... 21

2.1.2

Differences between H8S/2600 CPU and H8S/2000 CPU ........................................................................... 22

2.1.3

Differences from H8/300 CPU......................................................................................................................22

2.1.4

Differences from H8/300H CPU................................................................................................................... 23

2.2

CPU Operating Modes ............................................................................................................................................... 23

2.2.1

Advanced Mode............................................................................................................................................. 23

2.3

Address Space............................................................................................................................................................. 26

2.4

Register Configuration ............................................................................................................................................... 27

2.4.1

Overview ....................................................................................................................................................... 27

2.4.2

General Registers........................................................................................................................................... 27

2.4.3

Control Registers........................................................................................................................................... 28

2.4.4

Initial Register Values ................................................................................................................................... 29

2.5

Data Formats............................................................................................................................................................... 30

2.5.1

General Register Data Formats ..................................................................................................................... 30

2.5.2

Memory Data Formats................................................................................................................................... 32

2.6

Instruction Set............................................................................................................................................................. 33

2.6.1

Overview ....................................................................................................................................................... 33

2.6.2

Instructions and Addressing Modes ..............................................................................................................34

2.6.3

Table of Instructions Classified by Function................................................................................................. 35

2.6.4

Basic Instruction Formats..............................................................................................................................41

2.7

Addressing Modes and Effective Address Calculation ..............................................................................................41

2.7.1

Addressing Mode........................................................................................................................................... 41

2.7.2

Effective Address Calculation....................................................................................................................... 44

2.8

Processing States ........................................................................................................................................................47

2.8.1

Overview ....................................................................................................................................................... 47

2.8.2

Reset State ..................................................................................................................................................... 48

2.8.3

Exception-Handling State ............................................................................................................................. 48

2.8.4

Program Execution State ............................................................................................................................... 50

2.8.5

Bus-Released State ........................................................................................................................................50

2.8.6

Power-Down State......................................................................................................................................... 50

2.9

Basic Timing............................................................................................................................................................... 51

2.9.1

Overview ....................................................................................................................................................... 51

2.9.2

On-Chip Memory (ROM, RAM) ..................................................................................................................51

2.9.3

On-Chip Supporting Module Access Timing................................................................................................52

2.9.4

External Address Space Access Timing........................................................................................................53

2.10 Usage Note ................................................................................................................................................................. 53

2.10.1 TAS Instruction ............................................................................................................................................. 53

Contents

Rev.6.00 Oct.28.2004 page ix of xxiv

REJ09B0138-0600H