S3C880A/F880A
8-BIT CMOS
MICROCONTROLLERS
USER'S MANUAL
Revision 3
Important Notice
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time of publication. Samsung assumes no
responsibility, however, for possible errors or
omissions, or for any consequences resulting from
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products or product specifications with the intent to
improve function or design at any time and without
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product or circuit and specifically disclaims any and
all liability, including without limitation any
consequential or incidental damages.
"Typical" parameters can and do vary in different
applications. All operating parameters, including
"Typicals" must be validated for each customer
application by the customer's technical experts.
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S3C880A/F880A 8-Bit CMOS Microcontrollers
User's Manual, Revision 3
Publication Number: 23-S3-C880A/F880A-072004
© 2004 Samsung Electronics
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any
form or by any means, electric or mechanical, by photocopying, recording, or otherwise, without the prior written
consent of Samsung Electronics.
Samsung Electronics' microcontroller business has been awarded full ISO-14001 certification (BSI
Certificate No. FM24653). All semiconductor products are designed and manufactured in
accordance with the highest quality standards and objectives.
Samsung Electronics Co., Ltd.
San #24 Nongseo-Ri, Kiheung-Eup
Yongin-City, Kyunggi-Do, Korea
C.P.O. Box #37, Suwon 449-900
TEL: (82)-(31)-209-1907
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Printed in the Republic of Korea
Preface
The
S3C880A/F880A Microcontroller User's Manual
is designed for application designers and programmers who are
using the S3C880A/F880A microcontroller for application development.
It is organized in two main parts:
Part I
Programming Model
Part II
Hardware Descriptions
Part I contains software-related information to familiarize you with the microcontroller's architecture, programming
model, instruction set, and interrupt structure. It has six chapters:
Chapter 1
Chapter 2
Chapter 3
Product Overview
Address Spaces
Addressing Modes
Chapter 4
Chapter 5
Chapter 6
Control Registers
Interrupt Structure
SAM8 Instruction Set
Chapter 1, "Product Overview," is a high-level introduction to S3C880A/F880A with general product descriptions, as
well as detailed information about individual pin characteristics and pin circuit types.
Chapter 2, "Address Spaces," describes program and data memory spaces, the internal register file, and register
addressing. Chapter 2 also describes working register addressing, as well as system stack and user-defined stack
operations.
Chapter 3, "Addressing Modes," contains detailed descriptions of the addressing modes that are supported by the
S3C8-series CPU.
Chapter 4, "Control Registers," contains overview tables for all mapped system and peripheral control register values,
as well as detailed one-page descriptions in a standardized format. You can use these easy-to-read, alphabetically
organized, register descriptions as a quick-reference source when writing programs.
Chapter 5, "Interrupt Structure," describes the S3C880A/F880A interrupt structure in detail and further prepares you
for additional information presented in the individual hardware module descriptions in Part II.
Chapter 6, "SAM8 Instruction Set," describes the features and conventions of the instruction set used for all S3C8-
series microcontrollers. Several summary tables are presented for orientation and reference. Detailed descriptions of
each instruction are presented in a standard format. Each instruction description includes one or more practical
examples of how to use the instruction when writing an application program.
A basic familiarity with the information in Part I will help you to understand the hardware module descriptions in Part
II. If you are not yet familiar with the S3C8-series microcontroller family and are reading this manual for the first time,
we recommend that you first read Chapters 1–3 carefully. Then, briefly look over the detailed information in Chapters
4, 5, and 6. Later, you can reference the information in Part I as necessary.
Part II "hardware Descriptions," has detailed information about specific hardware components of the S3C880A/F880A
microcontroller. Also included in Part II are electrical, mechanical, MTP, and development tools data. It has 11
chapters:
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
Chapter 12
Clock Circuits
nRESET and Power-Down
I/O Ports
Basic Timer and Timer 0
Timer A
PWM and Capture
Chapter 13
Chapter 14
Chapter 15
Chapter 16
Chapter 17
Chapter 18
On-Screen Display (OSD)
Analog-to-Digital Converter
Electrical Data
Mechanical Data
S3F880A MTP
Development Tools
Two order forms are included at the back of this manual to facilitate customer order for S3C880A/F880A
microcontrollers: the Mask ROM Order Form, and the Mask Option Selection Form. You can photocopy these
forms, fill them out, and then forward them to your local Samsung Sales Representative.
S3C880A/F880A MICROCONTROLLER
iii
Table of Contents
Part I — Programming Model
Chapter 1
Product Overview
Overview .............................................................................................................................................1-1
Features .............................................................................................................................................1-2
Block Diagram ....................................................................................................................................1-3
Pin Assignments.................................................................................................................................1-4
Pin Descriptions ..................................................................................................................................1-5
Pin Circuits.........................................................................................................................................1-7
Chapter 2
Address Spaces
Overview .............................................................................................................................................2-1
Program Memory (ROM) ......................................................................................................................2-2
Register Architecture ...........................................................................................................................2-3
ROM Code Option (RCOD_OPT)...........................................................................................................2-5
Register Page Pointer (PP) ..........................................................................................................2-6
Effect of Different Instructions For Inter-Page Data Operations .........................................................2-7
Register Set 1.............................................................................................................................2-14
Register Set 2.............................................................................................................................2-14
Prime Register Space..................................................................................................................2-14
Working Registers .......................................................................................................................2-16
Using The Register Pointers .........................................................................................................2-17
Register Addressing ............................................................................................................................2-19
Common Working Register Area (C0H–CFH) .................................................................................2-21
4-Bit Working Register Addressing................................................................................................2-22
8-Bit Working Register Addressing................................................................................................2-24
System and User Stacks .....................................................................................................................2-26
Chapter 3
Addressing Modes
Overview .............................................................................................................................................3-1
Register Addressing Mode (R) ......................................................................................................3-2
Indirect Register Addressing Mode (IR)..........................................................................................3-3
Indexed Addressing Mode (X) .......................................................................................................3-7
Direct Address Mode (DA)............................................................................................................3-10
Indirect Address Mode (IA)...........................................................................................................3-12
Relative Address Mode (RA).........................................................................................................3-13
Immediate Mode (IM) ...................................................................................................................3-14
S3C880A/F880A MICROCONTROLLER
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