Hitachi H8/300L Series Manual de usuario

HITACHI SINGLE-CHIP MICROCOMPUTER

H8/300L Series

HITACHI

OMC942723078

The Hitachi H8 Series of single-chip microcomputers consists of the H8/500 Series, the

H8/300H Series, the H8/300 Series, and the H8/300L Series. These series have the following

features.

H8/500: Highly orthogonal instructions, with an instruction set geared for high level

languages

General register architecture

Up to 16-Mbyte address space

H8/300H: 16-Mbyte linear address space

16-bit general register architecture CPU that is upwardly compatible with the

H8/300 family.

Concise instruction set

Powerful word-size and longword size arithmetic instructions

H8/300: Simple instruction (2- and 4-byte opcodes)

General register architecture

Concise instruction set

Power bit manipulation instructions

64-kbyte address space

H8/300L: Same CPU as the H8/300 Series

On-chip support functions geared for consumer applications

Low-voltage/low-power operation

This overview document describes all the products in the H8/300L series, briefly presenting

their features, a functional overview, and the microcomputer development environment

system.

The H8/300L Series are built around the H8/300L CPU core, and provide on chip a wealth of

supporting functions for use in various application systems. These include ROM, RAM,

timers, 14-bit PWM, serial communication interfaces, A/D converters, I/O ports, vacuum

fluorescent display (VFD) controller/drivers, liquid crystal display (LCD) controller/

drivers, dual tone multi frequency (DTMF) generators, and multi-tone generators. These

peripheral modules support the implementation of compact multi-function applications.

Introduction

The H8/300L Series are available in either mask ROM or ZTAT™* versions, the latter

providing an on-chip PROM that can be programmed by the user.

Hitachi is working to provide a full, efficient development environment for a microcomputer

application system. In addition to support software, the environment includes a stand-alone

emulator that can be connected to a general purpose computer.

Note: * ZTAT™ is a trademark of Hitachi, Ltd.

Introduction

What is the H8/300L Series?....................................................................................... 7

1. Application Areas ..................................................................................................... 7

2. ASSP Based Approach ............................................................................................. 10

3. ZTAT™ Microcomputers.......................................................................................... 11

Product Line..................................................................................................................... 12

Function Table ................................................................................................................. 14

Application Perspectives............................................................................................... 16

1. Vacuum Fluorescent Display Controller/Driver (H8/3714 Series, H8/3724 Series,

and H8/3754 Series).................................................................................................. 16

2. Liquid Crystal Display Controller/Driver (H8/3814 Series, H8/3834 Series).......... 19

3. Tone Generator + LCD (H8/3877 Series)................................................................. 22

4. A/D and D/A Converters (H8/3927 Series).............................................................. 25

CPU.................................................................................................................................... 27

1. Features..................................................................................................................... 27

2. Register Structure...................................................................................................... 28

3. Data Formats............................................................................................................. 31

4. Addressing Modes .................................................................................................... 33

5. Instruction Set........................................................................................................... 35

6. Basic Bus Timing...................................................................................................... 43

7. CPU Operating States............................................................................................... 45

8. Exception Handling .................................................................................................. 46

9. Memory Map ............................................................................................................ 48

Low Power Modes.......................................................................................................... 50

1. Overview of Operating Mode Transitions................................................................ 50

2. Operating Modes and Current Drain......................................................................... 53

3. Product Series and Supported Operating Modes...................................................... 54

Product Descriptions...................................................................................................... 55

Contents

Peripheral Functions ...................................................................................................... 79

1. Timers ....................................................................................................................... 79

2. 14-Bit PWM.............................................................................................................. 93

3. Serial Communication Interface (SCI) ..................................................................... 95

4. A/D Converter........................................................................................................... 99

5. D/A Converter........................................................................................................... 101

6. I/O Ports.................................................................................................................... 102

7. Vacuum Fluorescent Display (VFD) Controller/Driver............................................ 105

8. Liquid Crystal Display (LCD) Controller/Driver..................................................... 106

9. Dual Tone Multi Frequency (DTMF) Generator...................................................... 112

10. Multi-Tone Generator ............................................................................................... 114

11. ROM ......................................................................................................................... 116

12. RAM ......................................................................................................................... 117

H8/300L Series Document........................................................................................... 118

Contents

1. Application Areas

Today, a wide range of electronic equipment, including TVs, VCRs, audio systems,

telephones, refrigerators, washing machines, microwave ovens, and air conditioners, surrounds

us in our daily life. Since the seventies these home appliances have seen continuous progress

in terms of increased functionality and improved performance due to the use of 4-bit

microcomputers with superlative cost-performance. During this period 4-bit microcomputers

have seen both increased integration of memory and peripherals as well as cost reduction due

to increased CPU performance and revolutions in semiconductor precision manufacturing

technologies. As a result, 4-bit microcomputers have come to play a major role in supporting

the development of new consumer products. However, the market has come to demand

increased entertainment value and product satisfaction in consumer products. Simplified VCR

programmability, powerful tape editing functions in audio equipment, neuro-fuzzy control of

microwave ovens and washing machines, and improved man-machine interfaces (such as

display functions) in all types of equipment are examples of this trend.

Microcomputers with a large scale program ROM (at least 16 kbytes), superlative arithmetic

performance, and high processing speed are required to realize these new functions. From the

implementors’ standpoint, programming languages that support the efficient development of

large-scale programs are required. However, from an architectural standpoint, the 4-bit

microcomputer is limited both in arithmetic abilities and in software productivity. Now, the

8-bit CPU in the H8/300L Series has made its appearance to support improved functionality

and performance in consumer equipment. The H8/300L CPU provides a 64-kbyte address

space and the high speed performance of a 0.4 µs minimum instruction execution time.

Furthermore, this CPU realizes high software productivity, since it supports standard (IEEE

conforming) mnemonics and the highly efficient C programming language.

The H8/300L Series is a product line of microcomputers that takes this H8/300L CPU as their

core and inherits and extends the consumer product oriented peripheral functions that were

supported by Hitachi’s 4-bit microcomputers. Peripheral functions provided by this series

include vacuum fluorescent display (VFD) controller/drivers, liquid crystal display (LCD)

controller/drivers, A/D converters, D/A converters, synchronous and asynchronous serial

communication interfaces (SCI), tone generators for telephone and radio equipment, PWM,

and a wide variety of timers. The H8/300L Series product line consists of products that

combine sets of these modules appropriate for particular applications.

What is the H8/300L Series?

The Significance of Lower Voltage and Lower Power

In addition to the increased performance discussed above, contemporary consumer and

portable electronic equipment also requires lower voltage and lower power operation. This is

because increased battery life is desired in portable equipment such as cordless telephones, and

extended backup operating periods are desired in equipment that uses line power. Since the

H8/300L Series microcomputers not only support operation at 2.7 V, but also support a rich

variety of low power modes, including 32-kHz subclock based operation, they can contribute

to reduced voltage and lower power application systems.

What is the H8/300L Series?

2. ASSP Based Approach

The members of the H8/300L Series include on-chip peripheral functions that are optimal for

particular applications.

The microcomputers in the H8/300L Series consist of an H8/300L CPU module, a standard

bus to which the on-chip modules are connected, and some number of modules, such as

ROM/RAM, VFD/LCD controller/driver, A/D and D/A converter, and I/O port including

general purpose I/O ports and high current I/O ports. Thus each product in this series

integrates the modules required to form that product. This approach allows us to develop

products that are optimal for a particular application area.

Standard bus (address bus and data bus)

H8/300L CPU Timer A

Timer B

ROM

RAM

SCI1

SCI2

VFD controller/

driver

LCD controller/

driver

A/D converter

D/A converter

General purpose

peripheral modules Display modules



Analog interface

modules

Memory modules

CPU module

Vacuum fluorescent display 

application equipment

 Liquid crystal display

application equipment



H8/3834, H8/3814, etc.H8/3724, H8/3714, etc.

CPU

H8/300L

LCD

ROM



SCI 1

A/D converter

RAM

14-bit PWM

SCI 2

SCI 3

CPU

H8/300L

VFD

System clock

generator

ROM



SCI 1

A/D converter

Timer E

Timer D

Timer C

Timer B

Timer A

RAM

Port A Port 0

14-bit PWM

SCI 2

Port 1

Port 9

Port 3Port 4Port 5

Subclock

generator



Port 8Port 7Port 6

Port 1Port 2Port 3Port 4Port 5

System clock

generator

Subclock

generator

Timer G

Timer F

Timer C

Timer B

Timer A

Port B Port C

Port APort 8Port 7Port 6 Port 9

LCD power supply



What is the H8/300L Series?

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