
8
User’s Manual U13570EJ3V1UD
INTRODUCTION
Readers
This manual is intended for user engineers who wish to understand the functions of the
PD784216A, 784218A, 784216AY, and 784218AY Subseries and design its application
systems.
Purpose
This manual is intended to help users understand the hardware functions of the
PD784216A, 784218A, 784216AY, and 784218AY Subseries.
Organization
The
PD784216A, 784218A, 784216AY, and 784218AY Subseries User’s Manuals
consist of two volumes, Hardware (this manual) and Instruction.
Hardware
Instruction
Pin functions
CPU functions
Internal block functions
Addressing
Interrupts
Instruction set
Other on-chip peripheral functions
Electrical specifications
There are cautions associated with using this product.
Be sure to read the cautions in the text of each chapter and the summary at the
end of each chapter.
How to read this manual
Reading this manual requires general knowledge about electronics, logic circuits, and
microcontrollers.
If there are no particular differences in functions
The
PD784218A Subseries is described as the representative subseries.
The
PD784218A of the PD784218A Subseries is described as the representative
mask ROM product, and the
PD78F4218A is described as the representative flash
memory product.
If there are differences in functions
Each product name is presented and described individually.
Since
PD784216A, 784218A Subseries products are described as the representative
products even in this case, for information on the operation of
PD784216AY,
784218AY Subseries products, read the
PD784214A, 784215A, 784216A, 784217A,
784218A, and 78F4218A as the
PD784214AY, 784215AY, 784216AY, 784217AY,
784218AY, and 78F4218AY.
To understand the overall functions
→ Read this manual in the order of the CONTENTS.
For unusual operations when debugging
→ See the applicable cautions listed at the end of each chapter.