Samsung S3F84UA, S3F84U8 User Manual

USER’S MANUAL

S3F84UA/F84U8

8-Bit CMOS MICROCONTROLLERS

September, 2008

REV 1.10

Confidential Proprietary of Samsung Electronics Co., Ltd

Copyright © 2008 Samsung Electronics, Inc. All Rights Reserved

Important Notice

The information in this publication has been carefully
checked and is believed to be entirely accurate at
the time of publication. Samsung assumes no
responsibility, however, for possible errors or
omissions, or for any consequences resulting from
the use of the information contained herein.

Samsung reserves the right to make changes in its
products or product specifications with the intent to
improve function or design at any time and without
notice and is not required to update this
documentation to reflect such changes.

This publication does not convey to a purchaser of
semiconductor devices described herein any license
under the patent rights of Samsung or others.

Samsung makes no warranty, representation, or
guarantee regarding the suitability of its products for
any particular purpose, nor does Samsung assume
any liability arising out of the application or use of
any product or circuit and specifically disclaims any
and all liability, including without limitation any
consequential or incidental damages.

S3F84UA/F84U8 8-Bit CMOS Microcontrollers
User's Manual, Revision 1.10
Publication Number: 21.10-S3-F84UA/F84U8-092008

"Typical" parameters can and do vary in different
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"Typicals" must be validated for each customer
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NOTIFICATION OF REVISIONS

ORIGINATOR: Samsung Electronics, LSI Development Group, Gi-Heung, South Korea

PRODUCT NAME: S3F84UA/F84U8 16-bit CMOS Microcontroller

DOCUMENT NAME: S3F84UA/F84U8 User's Manual, Revision 1.10

DOCUMENT NUMBER: 21.10-S3-F84UA/F84U8-092008

EFFECTIVE DATE: September, 2008

SUMMARY: As a result of additional product testing and evaluation, some specifications

published in S3F84UA/F84U8 User's Manual, Revision 1.10, have been
changed.These changes for in S3F84UA/F84U8 microcontroller, which are
described in detail in the Revision Descriptions section below, are related
to the followings:
— Chapter 22. Electrical Data
— Chapter 21. Embedded Flash Memory Interface

DIRECTIONS: Please note the changes in your copy (copies) of the S3F84UA/F84U8

User’s Manual, Revision 1.10. Or, simply attach the Revision Descriptions of the
next page to S3F84UA/F84U8 User’s Manual, Revision 1.10

REVISION HISTORY

Revision Remark Author(s) Date

0.00 Preliminary Spec for internal release only. SM. Lee June, 2008

1.00 First edition. SM. Lee July, 2008

1.10 Second edition. SM. Lee September, 2008

REVISION DESCRIPTIONS (REV 1.10)

CHAPTHER 22. ELECTRICAL DATA

Table 22-2. D.C Electrical Characteristics (Page 22-3)

(T

= – 40

A

°

C to + 85

°

C, VDD = 2.0 V to 5.5 V)

Parameter Symbol Conditions Min Typ Max Unit

Pull-up resistor

RL1 V

= 0 V; V

IN

Ports 0–4, T

IN

= 0 V; V

V
Ports 0–4, T

V

R

L2

= 0 V; V

IN

T

= 25 °C, nRESET

A

= 0 V; V

V

IN

T

= 25 °C, nRESET

A

= 5 V

DD

= 25 °C

A

= 3V

DD

= 25 °C

A

= 5 V

DD

= 3 V

DD

25 50 100

50 100 150

150 250 400

300 500 700

Table 22-2. D.C. Electrical Characteristics (Page 22-4)

(T

= – 40

A

°

C to + 85

°

C, VDD = 2.0 V to 5.5 V)

Parameter Symbol Conditions Min Typ Max Unit

Supply current

(1)

I

DD4

(3)

Sub Idle mode:

= 3.0V, TA = 25°C

V

DD

32kHz crystal oscillator

–

8.0 20.0

Table 22-2. D.C. Electrical Characteristics (Page 22-4)

kΩ

(T

= – 40

A

C to + 85

Parameter Symbol Conditions Min Typ Max Unit

°

Supply current

(1)

°

C, VDD = 2.0 V to 5.5 V)

I

DD5

(4)

Stop mode:
T

TA=85°C, VDD = 5.0V

=25°C, VDD = 5.0V

A

–

–

2.5 6.0

5.0 10.0

CHAPTER 21. EMBEDDED FLASH MEMORY INTERFACE

“NOTES” is added in the page 21-2.

μ

A

Preface

The S3F84UA/F84U8 Microcontroller User's Manual is designed for application designers and programmers who
are using the S3F84UA/F84U8 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 Product Overview

Chapter 2 Address Spaces
Chapter 3 Addressing Modes

Chapter 1, "Product Overview," is a high-level introduction to S3F84UA/F84U8 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
S3F8-series CPU.

Chapter 4 Control Registers
Chapter 5 Interrupt Structure
Chapter 6 Instruction Set

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 S3F84UA/F84U8 interrupt structure in detail and further prepares
you for additional information presented in the individual hardware module descriptions in Part II.

Chapter 6, "Instruction Set," describes the features and conventions of the instruction set used for all S3F8-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 S3F8-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
S3F84UA/F84U8 microcontroller. Also included in Part II are electrical, mechanical, Flash, and development tools
data. It has 19 chapters:

Chapter 7 Clock Circuit
Chapter 8 RESET and Power-Down
Chapter 9 I/O Ports
Chapter 10 Basic Timer
Chapter 11 8-bit Timer A/B
Chapter 12 8-bit Timer C
Chapter 13 16-bit Timer D0/D1
Chapter 14 Watch Timer
Chapter 15 LCD Controller/Driver
Chapter 16 10-bit-Analog-to-Digital Converter

Chapter 17 Serial I/O Interface
Chapter 18 UART 0
Chapter 19 UART 1
Chapter 20 Pattern Generator
Chapter 21 Embedded Flash Memory
Chapter 22 Electrical Data
Chapter 23 Mechanical Data
Chapter 24 S3F84UA/F84U8 Flash MCU
Chapter 25 Development Tools

S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER iii

Table of Contents

Part I — Programming Model

Chapter 1 Product Overview

S3F8-Series Microcontrollers........................................................................................................................1-1

S3F84UA/F84U8 Microcontroller..................................................................................................................1-1

Features ........................................................................................................................................................1-2

Block Diagram...............................................................................................................................................1-4

Pin Assignment .............................................................................................................................................1-5

Pin Descriptions ............................................................................................................................................1-7

Pin Circuits ....................................................................................................................................................1-11

Chapter 2 Address Spaces

Overview........................................................................................................................................................2-1

Program Memory (ROM)...............................................................................................................................2-2

Smart Option.........................................................................................................................................2-3

Register Architecture.....................................................................................................................................2-4

Register Page Pointer (PP)..................................................................................................................2-7

Register Set 1.......................................................................................................................................2-9

Register Set 2.......................................................................................................................................2-9

Prime Register Space...........................................................................................................................2-10

Working Registers ................................................................................................................................2-11

Using The Register Points....................................................................................................................2-12

Register Addressing......................................................................................................................................2-14

Common Working Register Area (C0H−CFH) .....................................................................................2-16

4-Bit Working Register Addressing ......................................................................................................2-17

8-Bit Working Register Addressing ......................................................................................................2-19

System and User Stack.................................................................................................................................2-21

S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER v

Table of Contents (Continued)

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

Chapter 4 Control Registers

Overview....................................................................................................................................................... 4-1

Chapter 5 Interrupt Structure

Overview....................................................................................................................................................... 5-1

Interrupt Types..................................................................................................................................... 5-2

S3F84UA/F84U8 Interrupt Structure ................................................................................................... 5-3

Interrupt Vector Addresses.................................................................................................................. 5-5

Enable/Disable Interrupt Instructions (EI, DI) ...................................................................................... 5-7

System-Level Interrupt Control Registers............................................................................................ 5-7

Interrupt Processing Control Points..................................................................................................... 5-8

Peripheral Interrupt Control Registers................................................................................................. 5-9

System Mode Register (SYM) ............................................................................................................. 5-11

Interrupt Mask Register (IMR) ............................................................................................................. 5-12

Interrupt Priority Register (IPR)............................................................................................................ 5-13

Interrupt Request Register (IRQ)......................................................................................................... 5-15

Interrupt Pending Function Types........................................................................................................ 5-16

Interrupt Source Polling Sequence...................................................................................................... 5-17

Interrupt Service Routines ................................................................................................................... 5-17

Generating Interrupt Vector Addresses............................................................................................... 5-18

Nesting Of Vectored Interrupts ............................................................................................................ 5-18

Instruction Pointer (IP)......................................................................................................................... 5-18

Fast Interrupt Processing..................................................................................................................... 5-18

Chapter 6 Instruction Set

Overview....................................................................................................................................................... 6-1

Data Types...........................................................................................................................................6-1

Register Addressing............................................................................................................................. 6-1

Addressing Modes............................................................................................................................... 6-1

Flags Register (FLAGS)....................................................................................................................... 6-6

Flag Descriptions ................................................................................................................................. 6-7

Instruction Set Notation........................................................................................................................ 6-8

Condition Codes .................................................................................................................................. 6-12

Instruction Descriptions........................................................................................................................ 6-13

vi S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER

Table of Contents (Continued)

Part II Hardware Descriptions

Chapter 7 Clock Circuit

Overview........................................................................................................................................................7-1

System Clock Circuit ............................................................................................................................7-1

Main Oscillator Circuits.........................................................................................................................7-2

Sub Oscillator Circuits ..........................................................................................................................7-2

Clock Status During Power-Down Modes............................................................................................7-3

System Clock Control Register (CLKCON)..........................................................................................7-4

Oscillator Control Register (OSCCON)................................................................................................7-5

Stop Control Register (STPCON).........................................................................................................7-6

Switching the CPU Clock......................................................................................................................7-7

Chapter 8 RESET and Power-Down

System RESET..............................................................................................................................................8-1

Overview...............................................................................................................................................8-1

Normal Mode RESET Operation..........................................................................................................8-1

Hardware RESET Values.....................................................................................................................8-2

Power-Down Modes......................................................................................................................................8-5

Stop Mode ............................................................................................................................................8-5

Idle Mode..............................................................................................................................................8-6

Chapter 9 I/O Ports

Overview........................................................................................................................................................9-1

Port Data Registers ..............................................................................................................................9-3

Port 0 ....................................................................................................................................................9-4

Port 1 ....................................................................................................................................................9-6

Port 2 ....................................................................................................................................................9-7

Port 3 ....................................................................................................................................................9-9

Port 4 ....................................................................................................................................................9-14

Chapter 10 Basic Timer

Overview........................................................................................................................................................10-1

Basic Timer (BT)...................................................................................................................................10-1

Basic Timer Control Register (BTCON) ...............................................................................................10-2

Basic Timer Function Description.........................................................................................................10-3

S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER vii

Table of Contents (Continued)

Chapter 11 8-bit Timer A/B

8-Bit Timer A................................................................................................................................................. 11-1

Overview.............................................................................................................................................. 11-1

Timer A Control Register (TACON)..................................................................................................... 11-2

Timer A Function Description............................................................................................................... 11-3

Block Diagram...................................................................................................................................... 11-6

8-Bit Timer B................................................................................................................................................. 11-7

Overview.............................................................................................................................................. 11-7

Block Diagram...................................................................................................................................... 11-8

Timer B Pulse Width Calculations ....................................................................................................... 11-9

Chapter 12 8-bit Timer C

8-Bit Timer C................................................................................................................................................. 12-1

Overview.............................................................................................................................................. 12-1

Timer C Control Register (TCCON)..................................................................................................... 12-2

Block Diagram...................................................................................................................................... 12-3

Chapter 13 16-bit Timer D0/D1

8-Bit Timer D0............................................................................................................................................... 13-1

Overview.............................................................................................................................................. 13-1

Timer D0 Control Register (TD0CON).................................................................................................13-2

Timer D0 Function Description ............................................................................................................ 13-3

Block Diagram...................................................................................................................................... 13-6

8-Bit Timer D1............................................................................................................................................... 13-7

Overview.............................................................................................................................................. 13-7

Timer D1 Control Register (TD1CON).................................................................................................13-8

Timer D1 Function Description ............................................................................................................ 13-9

Block Diagram...................................................................................................................................... 13-12

Chapter 14 Watch Timer

Overview....................................................................................................................................................... 14-1

Watch Timer Control Register (WTCON) ............................................................................................ 14-2

Watch Timer Circuit Diagram............................................................................................................... 14-3

viii S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER

Table of Contents (Continued)

Chapter 15 LCD Controller/Driver

Overview........................................................................................................................................................15-1

LCD Circuit Diagram.............................................................................................................................15-2

LCD RAM Address Area.......................................................................................................................15-3

LCD Control Register (LCON)..............................................................................................................15-4

Internal Resistor Bias Pin Connection..................................................................................................15-5

Common (COM) Signals ......................................................................................................................15-6

Segment (SEG) Signals .......................................................................................................................15-6

Chapter 16 10-bit Analog-to-Digital Converter

Overview........................................................................................................................................................16-1

Function Description......................................................................................................................................16-1

Conversion Timing................................................................................................................................16-2

A/D Converter Control Register (ADCON)...........................................................................................16-2

Internal Reference Voltage Levels .......................................................................................................16-3

Block Diagram...............................................................................................................................................16-4

Chapter 17 Serial I/O Interface

Overview........................................................................................................................................................17-1

Programming Procedure ......................................................................................................................17-1

SIO Control Register (SIOCON)...........................................................................................................17-2

SIO PRe-Scaler Register (SIOPS).......................................................................................................17-3

Block Diagram...............................................................................................................................................17-3

Serial I/O Timing Diagram....................................................................................................................17-4

S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER ix

Table of Contents (Continued)

Chapter 18 UART 0

Overview....................................................................................................................................................... 18-1

Programming Procedure......................................................................................................................18-1

UART 0 High-byte Control Register (UART0CONH)........................................................................... 18-2

UART 0 Low-byte Control Register (UART0CONL)............................................................................ 18-2

UART 0 Interrupt Pending bits............................................................................................................. 18-4

UART 0 Data Register (UDATA0) ....................................................................................................... 18-5

UART 0 Baud Rate Data Register (BRDATA0)................................................................................... 18-5

BAUD Rate Calculations......................................................................................................................18-5

Block Diagram .............................................................................................................................................. 18-7

UART 0 Mode 0 Function Description................................................................................................. 18-8

Serial Port Mode 1 Function Description............................................................................................. 18-9

Serial Port Mode 2 Function Description............................................................................................. 18-10

Serial Port Mode 3 Function Description............................................................................................. 18-11

Serial Communication for Multiprocessor Configurations ................................................................... 18-12

Chapter 19 UART 1

Overview....................................................................................................................................................... 19-1

Programming Procedure......................................................................................................................19-1

UART 1 High-byte Control Register (UART1CONH)........................................................................... 19-2

UART 1 Low-byte Control Register (UART1CONL)............................................................................ 19-2

UART 1 Interrupt Pending bits............................................................................................................. 19-4

UART 1 Data Register (UDATA1) ....................................................................................................... 19-5

UART 1 Baud Rate Data Register (BRDATA1)................................................................................... 19-5

BAUD Rate Calculations......................................................................................................................19-5

Block Diagram .............................................................................................................................................. 19-7

UART 1 Mode 0 Function Description................................................................................................. 19-8

Serial Port Mode 1 Function Description............................................................................................. 19-9

Serial Port Mode 2 Function Description............................................................................................. 19-10

Serial Port Mode 3 Function Description............................................................................................. 19-11

Serial Communication for Multiprocessor Configurations ................................................................... 19-12

Chapter 20 Pattern Generation Module

Overview....................................................................................................................................................... 20-1

Pattern Generation Flow...................................................................................................................... 20-1

Pattern Generation Control Register (PGCON)................................................................................... 20-2

x S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER

Table of Contents (Continued)

Chapter 21 Embedded Flash Memory Interface

Overview........................................................................................................................................................21-1

User Program Mode......................................................................................................................................21-2

Flash Memory Control Registers (User Program Mode)......................................................................21-3

ISP™ (On-Board Programming) Sector.........................................................................................................21-6

ISP Reset Vector and ISP Sector Size .........................................................................................................21-7

Sector Erase..................................................................................................................................................21-8

Programming.................................................................................................................................................21-10

Reading.........................................................................................................................................................21-12

Hard Lock Protection.....................................................................................................................................21-13

Chapter 22 Electrical Data

Overview........................................................................................................................................................22-1

Chapter 23 Mechanical Data

Overview........................................................................................................................................................23-1

Chapter 24 S3F84UA/F84U8 Flash MCU

Overview........................................................................................................................................................24-1

On Board Writing..................................................................................................................................24-5

Chapter 25 Development Tools

Overview........................................................................................................................................................25-1

Target Boards.......................................................................................................................................25-1

Progrmming Socket Adapter ................................................................................................................25-1

TB84UA/8 Target Board.......................................................................................................................25-3

Idle LED................................................................................................................................................25-5

Stop LED ..............................................................................................................................................25-5

S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER xi

List of Figures

Figure Title Page
Number Number

1-1 Block Diagram............................................................................................................1-4

1-2 S3F84UA/F84U8 Pin Assignments (44-QFP-1010B) ................................................1-5

1-3 S3F84UA/F84U8 Pin Assignments (42-SDIP-600)....................................................1-6

1-4 Pin Circuit Type A.......................................................................................................1-11

1-5 Pin Circuit Type B.......................................................................................................1-11

1-6 Pin Circuit Type C.......................................................................................................1-11

1-7 Pin Circuit Type D-2 (P1.0-P1.1)................................................................................1-11

1-8 Pin Circuit Type F-16 (P0)..........................................................................................1-12

1-9 Pin Circuit Type H-39 .................................................................................................1-12

1-10 Pin Circuit Type H-44(P2)...........................................................................................1-13

1-11 Pin Circuit Type H-41 (P3)..........................................................................................1-13

1-12 Pin Circuit Type H-42 (P4)..........................................................................................1-14

2-1 Program Memory Address Space..............................................................................2-2

2-2 Smart Option...............................................................................................................2-3

2-3 Internal Register File Organization (S3F84UA)..........................................................2-5

2-4 Internal Register File Organization (S3F84U8)..........................................................2-6

2-5 Register Page Pointer (PP)........................................................................................2-7

2-6 Set 1, Set 2, Prime Area Register, and LCD Data Register Map...............................2-10

2-7 8-Byte Working Register Areas (Slices).....................................................................2-11

2-8 Contiguous 16-Byte Working Register Block .............................................................2-12

2-9 Non-Contiguous 16-Byte Working Register Block .....................................................2-13

2-10 16-Bit Register Pair ....................................................................................................2-14

2-11 Register File Addressing ............................................................................................2-15

2-12 Common Working Register Area................................................................................2-16

2-13 4-Bit Working Register Addressing ............................................................................2-18

2-14 4-Bit Working Register Addressing Example .............................................................2-18

2-15 8-Bit Working Register Addressing ............................................................................2-19

2-16 8-Bit Working Register Addressing Example .............................................................2-20

2-17 Stack Operations........................................................................................................2-21

3-1 Register Addressing...................................................................................................3-2

3-2 Working Register Addressing.....................................................................................3-2

3-3 Indirect Register Addressing to Register File.............................................................3-3

3-4 Indirect Register Addressing to Program Memory.....................................................3-4

3-5 Indirect Working Register Addressing to Register File ..............................................3-5

3-6 Indirect Working Register Addressing to Program or Data Memory..........................3-6

3-7 Indexed Addressing to Register File ..........................................................................3-7

3-8 Indexed Addressing to Program or Data Memory with Short Offset..........................3-8

3-9 Indexed Addressing to Program or Data Memory......................................................3-9

3-10 Direct Addressing for Load Instructions .....................................................................3-10

3-11 Direct Addressing for Call and Jump Instructions......................................................3-11

3-12 Indirect Addressing.....................................................................................................3-12

3-13 Relative Addressing....................................................................................................3-13

3-14 Immediate Addressing................................................................................................3-14

S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER xiii

List of Figures (Continued)

Figure Title Page
Number Number

4-1 Register Description Format...................................................................................... 4-4

5-1 S3F8-Series Interrupt Types...................................................................................... 5-2

5-2 S3F84UA/F84U8 Interrupt Structure ......................................................................... 5-4

5-3 ROM Vector Address Area ........................................................................................ 5-5

5-4 Interrupt Function Diagram........................................................................................ 5-8

5-5 System Mode Register (SYM) ................................................................................... 5-11

5-6 Interrupt Mask Register (IMR) ................................................................................... 5-12

5-7 Interrupt Request Priority Groups.............................................................................. 5-13

5-8 Interrupt Priority Register (IPR) ................................................................................. 5-14

5-9 Interrupt Request Register (IRQ)............................................................................... 5-15

6-1 System Flags Register (FLAGS) ............................................................................... 6-6

7-1 Crystal/Ceramic Oscillator (fx)................................................................................... 7-2

7-2 External Oscillator (fx)................................................................................................ 7-2

7-3 RC Oscillator (fx)........................................................................................................ 7-2

7-4 Crystal Oscillator (fxt)................................................................................................. 7-2

7-5 External Oscillator (fxt)............................................................................................... 7-2

7-6 System Clock Circuit Diagram................................................................................... 7-3

7-7 System Clock Control Register (CLKCON) ............................................................... 7-4

7-8 Oscillator Control Register (OSCCON) ..................................................................... 7-5

7-9 STOP Control Register (STPCON)............................................................................ 7-6

9-1 Port 0 High-Byte Control Register (P0CONH)........................................................... 9-4

9-2 Port 0 Low-Byte Control Register (P0CONL)............................................................ 9-5

9-3 Port 0 Pull-up Resistor Enable Register (P0PUR)..................................................... 9-5

9-4 Port 1 Control Register (P1CON) .............................................................................. 9-6

9-5 Port 2 High-Byte Control Register (P2CONH)........................................................... 9-7

9-6 Port 2 Low-Byte Control Register (P2CONL)............................................................ 9-8

9-7 Port 3 High-Byte Control Register (P3CONH)........................................................... 9-10

9-8 Port 3 Low -Byte Control Register (P3CONL)........................................................... 9-10

9-9 Port 3 High-Byte Interrupt Control Register (P3INTH)............................................... 9-11

9-10 Port 3 Low-Byte Interrupt Control Register (P3INTL)................................................ 9-11

9-11 Port 3 Interrupt Pending Register (P3PND)............................................................... 9-12

9-12 Port 3 Pull-up Resistor Enable Register (P3PUR)..................................................... 9-12

9-13 Port 3 N-Channel Open-drain Mode Register (PNE3) .............................................. 9-13

9-14 Port 4 High-Byte Control Register (P4CONH)........................................................... 9-14

9-15 Port 4 Low-Byte Control Register (P4CONL)............................................................ 9-15

9-16 Port 4 Pull-up Resistor Enable Register (P4PUR)..................................................... 9-15

9-17 Port 4 N-Channel Open-drain Mode Register (PNE4) .............................................. 9-16

xiv S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER

List of Figures (Continued)

Figure Title Page
Number Number

10-1 Basic Timer Control Register (BTCON) .....................................................................10-2

10-2 Basic Timer Block Diagram........................................................................................10-4

11-1 Timer A Control Register (TACON)............................................................................11-2

11-2 Simplified Timer A Function Diagram: Interval Timer Mode.......................................11-3

11-3 Simplified Timer A Function Diagram: PWM Mode....................................................11-4

11-4 Simplified Timer A Function Diagram: Capture Mode................................................11-5

11-5 Timer A Functional Block Diagram.............................................................................11-6

11-6 Timer B Control Register............................................................................................11-7

11-7 Timer B Functional Block Diagram.............................................................................11-8

11-8 Timer B Output Flip-Flop Waveforms in Repeat Mode..............................................11-10

12-1 Timer C Control Register (TCCON) ...........................................................................12-2

12-2 Timer C Function Block Diagram ...............................................................................12-3

13-1 Timer D0 Control Register (TD0CON) .......................................................................13-2

13-2 Simplified Timer D0 Function Diagram: Interval Timer Mode ....................................13-3

13-3 Simplified Timer D0 Function Diagram: PWM Mode..................................................13-4

13-4 Simplified Timer D0 Function Diagram: Capture Mode..............................................13-5

13-5 Timer D0 Functional Block Diagram...........................................................................13-6

13-6 Timer D1 Control Register (TD1CON) .......................................................................13-8

13-7 Simplified Timer D1 Function Diagram: Interval Timer Mode ....................................13-9

13-8 Simplified Timer D1 Function Diagram: PWM Mode..................................................13-10

13-9 Simplified Timer D1 Function Diagram: Capture Mode..............................................13-11

13-10 Timer D1 Functional Block Diagram...........................................................................13-12

14-1 Watch Timer Control Register (WTCON)...................................................................14-2

14-2 Watch Timer Circuit Diagram .....................................................................................14-3

15-1 LCD Function Diagram...............................................................................................15-1

15-2 LCD Circuit Diagram...................................................................................................15-2

15-3 LCD Display Data RAM Organization ........................................................................15-3

15-4 LCD Control Register (LCON)....................................................................................15-4

15-5 Internal Resistor Bias Pin Connection........................................................................15-5

15-6 Select/No-Select Signal in 1/2 Duty, 1/2 Bias Display Mode .....................................15-7

15-7 Select/No-Select Signal in 1/3 Duty, 1/3 Bias Display Mode .....................................15-7

15-8 LCD Signal Waveforms (1/2 Duty, 1/2 Bias)..............................................................15-8

15-9 LCD Signal Waveforms (1/3 Duty, 1/3 Bias)..............................................................15-9

15-10 LCD Signal Waveforms (1/4 Duty, 1/3 Bias)..............................................................15-10

15-11 LCD Signal Waveforms (1/8 Duty, 1/4 Bias)..............................................................15-11

S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER xv

List of Figures (Continued)

Figure Title Page
Number Number

16-1 A/D Converter Control Register (ADCON) ................................................................ 16-2

16-2 A/D Converter Data Register (ADDATAH/L)............................................................. 16-3

16-3 A/D Converter Functional Block Diagram.................................................................. 16-4

16-4 Recommended A/D Converter Circuit for Highest Absolute Accuracy...................... 16-5

17-1 Serial I/O Module Control Registers (SIOCON) ........................................................ 17-2

17-2 SIO Pre-scaler Register (SIOPS) .............................................................................. 17-3

17-3 SIO Functional Block Diagram................................................................................... 17-3

17-4 Serial I/O Timing in Transmit/Receive Mode (Tx at falling, SIOCON.4 = 0).............. 17-4

17-5 Serial I/O Timing in Transmit/Receive Mode (Tx at rising, SIOCON.4 = 1) .............. 17-4

18-1 UART 0 High Byte Control Register (UART0CONH) ................................................ 18-3

18-2 UART 0 Low Byte Contro l Register (UART0CONL)................................................. 18-4

18-3 UART 0 Data Register (UDATA0) ............................................................................. 18-5

18-4 UART 0 Baud Rate Data Register (BRDATA0)......................................................... 18-5

18-5 UART 0 Functional Block Diagram............................................................................ 18-7

18-6 Timing Diagram for Serial Port Mode 0 Operation .................................................... 18-8

18-7 Timing Diagram for Serial Port Mode 1 Operation .................................................... 18-9

18-8 Timing Diagram for Serial Port Mode 2 Operation .................................................... 18-10

18-9 Timing Diagram for Serial Port Mode 3 Operation .................................................... 18-11

18-10 Connection Example for Multiprocessor Serial Data Communications..................... 18-13

19-1 UART 1 High Byte Control Register (UART1CONH) ................................................ 19-3

19-2 UART 1 Low Byte Control Register (UART1CONL).................................................. 19-4

19-3 UART 1 Data Register (UDATA1) ............................................................................. 19-5

19-4 UART 1 Baud Rate Data Register (BRDATA1)......................................................... 19-5

19-5 UART 1 Functional Block Diagram............................................................................ 19-7

19-6 Timing Diagram for Serial Port Mode 0 Operation .................................................... 19-8

19-7 Timing Diagram for Serial Port Mode 1 Operation .................................................... 19-9

19-8 Timing Diagram for Serial Port Mode 2 Operation .................................................... 19-10

19-9 Timing Diagram for Serial Port Mode 3 Operation .................................................... 19-11

19-10 Connection Example for Multiprocessor Serial Data Communications..................... 19-13

20-1 Pattern Generation Flow............................................................................................ 20-1

20-2 Pattern Generation Control Register (PGCON)......................................................... 20-2

20-3 Pattern Generation Circuit Diagram........................................................................... 20-2

xvi S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER

List of Figures (Continued)

Figure Title Page
Number Number

21-1 Flash Memory Control Register (FMCON).................................................................21-3

21-2 Flash Memory User Programming Enable Register (FMUSR) ..................................21-4

21-3 Flash Memory Sector Address Register High Byte (FMSECH).................................21-5

21-4 Flash Memory Sector Address Register Low Byte (FMSECL) ..................................21-5

21-5 Program Memory Address Space..............................................................................21-6

21-6 Sector Configurations in User Program Mode ...........................................................21-8

22-1 Input Timing for External Interrupts............................................................................22-5

22-2 Input Timing for nRESET............................................................................................22-5

22-3 Stop Mode Release Timing Initiated by nRESET ......................................................22-7

22-4 Stop Mode Release Timing Initiated by Interrupts.....................................................22-7

22-5 LVR (Low Voltage Reset) Timing...............................................................................22-9

22-6 Serial Data Transfer Timing........................................................................................22-10

22-7 Waveform for UART Timing Characteristics ..............................................................22-11

22-8 Timing Waveform for the UART Module ....................................................................22-12

22-9 Clock Timing Measurement at XIN.............................................................................22-14

22-10 Clock Timing Measurement at XTIN..........................................................................22-14

22-11 Operating Voltage Range...........................................................................................22-15

23-1 Package Dimensions (44-QFP-1010B)......................................................................23-1

23-2 Package Dimensions (42-SDIP-600) .........................................................................23-2

24-1 S3F84UA/F84U8 Pin Assignments (44-QFP-1010B) ................................................24-2

24-2 S3F84UA/F84U8 Pin Assignments (42-SDIP-600)....................................................24-3

24-3 RC Delay Circuit.........................................................................................................24-4

24-4 PCB Design Guide for on Board Programming..........................................................24-5

25-1 Emulator Product Configuration.................................................................................25-2

25-2 TB84UA/8 Target Board Configuration ......................................................................25-3

25-3 50-Pin Connectors (J101) for TB84UA/8 ...................................................................25-6

25-4 50-Pin Connectors (J102) for TB84UA/8 ...................................................................25-7

25-5 S3E4U0 Cables for 42-SDIP Package.......................................................................25-8

25-6 S3E4U0 Cables for 44-QFP Package........................................................................25-8

S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER xvii

List of Tables

Table Title Page
Number Number

1-1 S3F84UA/F84U8 Pin Descriptions.............................................................................1-7

2-1 S3F84UA Register Type Summary............................................................................2-4

2-2 S3F84U8 Register Type Summary ............................................................................2-4

4-1 Set 1 Registers...........................................................................................................4-1

4-2 Set 1, Bank 0 Registers..............................................................................................4-2

4-3 Set 1, Bank 1 Registers..............................................................................................4-3

5-1 Interrupt Vectors.........................................................................................................5-6

5-2 Interrupt Control Register Overview...........................................................................5-7

5-3 Interrupt Source Control and Data Registers.............................................................5-9

6-1 Instruction Group Summary........................................................................................6-2

6-2 Flag Notation Conventions.........................................................................................6-8

6-3 Instruction Set Symbols..............................................................................................6-8

6-4 Instruction Notation Conventions ...............................................................................6-9

6-5 Opcode Quick Reference...........................................................................................6-10

6-6 Condition Codes.........................................................................................................6-12

8-1 S3F84UA/F84U8 Set 1 Register and Values after RESET........................................8-2

8-2 S3F84UA/F84U8 Set 1, Bank0 Register and Values after RESET ...........................8-3

8-3 S3F84UA/F84U8 Set 1, Bank1 Register and Values after RESET ...........................8-4

9-1 S3F84UA/F84U8 Port Configuration Overview..........................................................9-2

9-2 Port Data Register Summary......................................................................................9-3

S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER xix

List of Tables (Continued)

Table Title Page
Number Number

18-1 Commonly Used Baud Rates Generated by BRDATA0............................................ 18-6

19-1 Commonly Used Baud Rates Generated by BRDATA1............................................ 19-6

21-1 ISP Sector Size.......................................................................................................... 21-7

21-2 Reset Vector Address................................................................................................ 21-7

22-1 Absolute Maximum Ratings....................................................................................... 22-2

22-2 D.C. Electrical Characteristics................................................................................... 22-2

22-3 A.C. Electrical Characteristics ................................................................................... 22-5

22-4 Input/Output Capacitance.......................................................................................... 22-6

22-5 Data Retention Supply Voltage in Stop Mode ........................................................... 22-6

22-6 A/D Converter Electrical Characteristics ................................................................... 22-8

22-7 Low Voltage Reset Electrical Characteristics............................................................ 22-9

22-8 Synchronous SIO Electrical Characteristics.............................................................. 22-10

22-9 UART Timing Characteristics in Mode 0 (12.0MHz) ................................................. 22-11

22-10 Main Oscillator Characteristics.................................................................................. 22-13

22-11 Sub Oscillation Characteristics.................................................................................. 22-13

22-12 Main Oscillation Stabilization Time............................................................................ 22-14

22-13 Sub Oscillation Stabilization Time ............................................................................. 22-14

22-14 Internal Flash ROM Electrical Characteristics........................................................... 22-15

24-1 Descriptions of Pins Used to Read/Write the Flash ROM......................................... 24-4

24-2 Reference Table for Connection................................................................................24-6

25-1 Components for TB84UA/8........................................................................................ 25-4

25-2 Setting of the Jumper in TB84UA/8........................................................................... 25-5

xx S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER

List of Programming Tips

Description Page
Number

Chapter 2: Address Spaces

Using the page pointer for RAM clear (Page 0, Page1)...........................................................................2-8

Setting the register pointers......................................................................................................................2-12

Using the RPs to calculate the sum of a series of registers.....................................................................2-13

Addressing the common working register area........................................................................................2-17

Standard stack operations using PUSH and POP....................................................................................2-22

Chapter 5: Interrupt Structure

How to prevent the unexpected external interrupts..................................................................................5-10

How to clear an interrupt pending bit........................................................................................................5-16

Chapter 7: Clock Circuit

How to use stop instruction.......................................................................................................................7-6

Switching the CPU clock...........................................................................................................................7-7

Chapter 11: 8-bit Timer A/B

To Generate 38 kHz, 1/3 duty signal through P4.1 ..................................................................................11-11

To Generate a one pulse signal through P4.1..........................................................................................11-12

Chapter 20: PATTERN GENERATIONMODULE

Using the Pattern Generation ...................................................................................................................20-3

Chapter 21: Embedded Flash Memory Interface

Sector Erase .............................................................................................................................................21-9

Program ....................................................................................................................................................21-11

Reading.....................................................................................................................................................21-12

Hard Lock Protection ................................................................................................................................21-13

S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER xxi

List of Register Descriptions

Register Full Register Name Page
Identifier Number

ADCON A/D Converter Control Register .................................................................................4-5

BTCON Basic Timer Control Register.....................................................................................4-6

CLKCON System Clock Control Register..................................................................................4-7

FLAGS Set Flags Register......................................................................................................4-8

FMCON Flash Memory Control Register.................................................................................4-9

FMSECH Flash Memory Sector Address Register (High Byte).................................................4-10

FMSECL Flash Memory Sector Address Register (Low Byte)..................................................4-10

FMUSR Flash Memory User Programming Enable Register..................................................4-11

IMR Interrupt Mask Register..............................................................................................4-12

INTPND Interrupt Pending Register.........................................................................................4-13

IPH Instruction Pointer (High Byte) .................................................................................4-14

IPL Instruction Pointer (Low Byte) ..................................................................................4-14

IPR Interrupt Priority Register ...........................................................................................4-15

IRQ Interrupt Request Register.........................................................................................4-16

LCON LCD Control Register.................................................................................................4-17

OSCCON Oscillator Control Register.........................................................................................4-18

P0CONH Port 0 Control Register (High Byte)............................................................................4-19

P0CONL Port 0 Control Register (Low Byte) ............................................................................4-20

P0PUR Port 0 Pull-up Resistor Enable Register ....................................................................4-21

P1CON Port 1 Control Register...............................................................................................4-22

P2CONH Port 2 Control Register (High Byte)............................................................................4-23

P2CONL Port 2 Control Register (Low Byte) ............................................................................4-24

P3CONH Port 3 Control Register (High Byte)............................................................................4-25

P3CONL Port 3 Control Register (Middle Byte) ........................................................................4-26

P3INTH Port 3 Interrupt Control Register (High Byte) .............................................................4-27

P3INTL Port 3 Interrupt Control Register (Low Byte)..............................................................4-28

P3PND Port 3 Interrupt Pending Register...............................................................................4-29

P3PUR Port 3 Pull-up Resistor Enable Register ....................................................................4-30

PNE3 Port 3 N-channel Open-drain Mode Register.............................................................4-31

P4CONH Port 4 Control Register (High Byte)............................................................................4-32

P4CONL Port 4 Control Register (Low Byte) ............................................................................4-33

P4PUR Port 4 Pull-up Resistor Enable Register ....................................................................4-34

PNE4 Port 4 N-channel Open-drain Mode Register.............................................................4-35

S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER xxiii

List of Register Descriptions (Continued)

Register Full Register Name Page
Identifier Number

PGCON Pattern Generation Module Control Register.............................................................4-36

PP Register Page Pointer ................................................................................................4-37

RP0 Register Pointer 0.......................................................................................................4-38

RP1 Register Pointer 1.......................................................................................................4-38

SIOCON SIO Control Register ..................................................................................................4-39

SPH Stack Pointer (High Byte)...........................................................................................4-40

SPL Stack Pointer (Low Byte)............................................................................................4-40

STPCON Stop Control Register.................................................................................................4-41

SYM System Mode Register...............................................................................................4-42

TACON Timer A Control Register............................................................................................4-43

TBCON Timer B Control Register............................................................................................4-44

TCCON Timer C Control Register............................................................................................4-45

TD0CON Timer D0 Control Register..........................................................................................4-46

TD1CON Timer D1 Control Register..........................................................................................4-47

UART0CONH UART 0 Control Register (High Byte).........................................................................4-48

UART0CONL UART 0 Control Register (Low Byte) .........................................................................4-49

UART1CONH UART 1 Control Register (High Byte).........................................................................4-50

UART1CONL UART 1 Control Register (Low Byte) .........................................................................4-51

WTCON Watch Timer Control Register....................................................................................4-52

xxiv S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER

List of Instruction Descriptions

Instruction Full Register Name Page
Mnemonic Number

ADC Add with Carry............................................................................................................6-14

ADD Add .............................................................................................................................6-15

AND Logical AND ...............................................................................................................6-16

BAND Bit AND.......................................................................................................................6-17

BCP Bit Compare ...............................................................................................................6-18

BITC Bit Complement..........................................................................................................6-19

BITR Bit Reset.....................................................................................................................6-20

BITS Bit Set.........................................................................................................................6-21

BOR Bit OR.........................................................................................................................6-22

BTJRF Bit Test, Jump Relative on False ...............................................................................6-23

BTJRT Bit Test, Jump Relative on True.................................................................................6-24

BXOR Bit XOR.......................................................................................................................6-25

CALL Call Procedure............................................................................................................6-26

CCF Complement Carry Flag .............................................................................................6-27

CLR Clear...........................................................................................................................6-28

COM Complement...............................................................................................................6-29

CP Compare.....................................................................................................................6-30

CPIJE Compare, Increment, and Jump on Equal .................................................................6-31

CPIJNE Compare, Increment, and Jump on Non-Equal .........................................................6-32

DA Decimal Adjust ...........................................................................................................6-33

DEC Decrement..................................................................................................................6-35

DECW Decrement Word........................................................................................................6-36

DI Disable Interrupts.......................................................................................................6-37

DIV Divide (Unsigned).......................................................................................................6-38

DJNZ Decrement and Jump if Non-Zero..............................................................................6-39

EI Enable Interrupts........................................................................................................6-40

ENTER Enter...........................................................................................................................6-41

EXIT Exit..............................................................................................................................6-42

IDLE Idle Operation.............................................................................................................6-43

INC Increment ...................................................................................................................6-44

INCW Increment Word..........................................................................................................6-45

IRET Interrupt Return..........................................................................................................6-46

JP Jump...........................................................................................................................6-47

JR Jump Relative.............................................................................................................6-48

LD Load............................................................................................................................6-49

LDB Load Bit ......................................................................................................................6-51

S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER xxv

List of Instruction Descriptions (Continued)

Instruction Full Register Name Page
Mnemonic Number

LDC/LDE Load Memory..............................................................................................................6-52

LDCD/LDED Load Memory and Decrement....................................................................................6-54

LDCI/LDEI Load Memory and Increment......................................................................................6-55

LDCPD/LDEPD Load Memory with Pre-Decrement.............................................................................6-56

LDCPI/LDEPI Load Memory with Pre-Increment ..............................................................................6-57

LDW Load Word..................................................................................................................6-58

MULT Multiply (Unsigned).....................................................................................................6-59

NEXT Next.............................................................................................................................6-60

NOP No Operation ..............................................................................................................6-61

OR Logical OR..................................................................................................................6-62

POP Pop from Stack...........................................................................................................6-63

POPUD Pop User Stack (Decrementing).................................................................................6-64

POPUI Pop User Stack (Incrementing) ..................................................................................6-65

PUSH Push to Stack..............................................................................................................6-66

PUSHUD Push User Stack (Decrementing)...............................................................................6-67

PUSHUI Push User Stack (Incrementing) ................................................................................6-68

RCF Reset Carry Flag.........................................................................................................6-69

RET Return.........................................................................................................................6-70

RL Rotate Left..................................................................................................................6-71

RLC Rotate Left through Carry...........................................................................................6-72

RR Rotate Right................................................................................................................6-73

RRC Rotate Right through Carry.........................................................................................6-74

SB0 Select Bank 0..............................................................................................................6-75

SB1 Select Bank 1..............................................................................................................6-76

SBC Subtract with Carry .....................................................................................................6-77

SCF Set Carry Flag.............................................................................................................6-78

SRA Shift Right Arithmetic..................................................................................................6-79

SRP/SRP0/SRP1 Set Register Pointer....................................................................................................6-80

STOP Stop Operation............................................................................................................6-81

SUB Subtract ......................................................................................................................6-82

SWAP Swap Nibbles..............................................................................................................6-83

TCM Test Complement under Mask ...................................................................................6-84

TM Test under Mask.........................................................................................................6-85

WFI Wait for Interrupt.........................................................................................................6-86

XOR Logical Exclusive OR..................................................................................................6-87

xxvi S3F84UA/F84U8_UM_REV1.10 MICROCONTROLLER

S3F84UA/F84U8_UM_REV1.10 PRODUCT OVERVIEW

1 PRODUCT OVERVIEW

S3C8-SERIES MICROCONTROLLERS

Samsung's S3C8 series of 8-bit single-chip CMOS microcontrollers offers a fast and efficient CPU, a wide range
of integrated peripherals, and various mask-programmable ROM sizes. Among the major CPU features are:

— Efficient register-oriented architecture
— Selectable CPU clock sources
— Idle and Stop power-down mode release by interrupts
— Built-in basic timer with watchdog function

A sophisticated interrupt structure recognizes up to eight interrupt levels. Each level can have one or more
interrupt sources and vectors. Fast interrupt processing (within a minimum of four CPU clocks) can be assigned to
specific interrupt levels.

S3F84UA/F84U8 MICROCONTROLLER

The S3F84UA/F84U8 single-chip CMOS
microcontrollers are fabricated using the highly
advanced CMOS process, based on Samsung’s
newest CPU architecture.

The S3F84UA, S3F84U8 are a microcontroller with a
48K-byte, 8K-byte Flash ROM embedded
respectively.

The S3F84UA is a microcontroller with a 48K-byte
Flash ROM embedded.
The S3F84U8 is a microcontroller with a 8K-byte
Flash ROM embedded.

Using a proven modular design approach, Samsung
engineers have successfully developed the
S3F84UA/F84U8 by integrating the following
peripheral modules with the powerful SAM8 core:

— Five programmable I/O ports, including four 8-bit

ports, and one 4-bit port, for a total of 36 pins

— Eight bit-programmable pins for external

interrupts

— One 8-bit basic timer for oscillation stabilization

and watchdog functions (system reset)

— Three 8-bit timer/counter and two 16-bit

timer/counter with selectable operating modes
— Watch timer for real time
— LCD Controller/driver
— A/D converter with 8 selectable input pins
— Synchronous SIO modules
— Two asynchronous UART modules
— Pattern generation module

They are currently available in 44-pin-QFP and 42­pin-SDIP package.

1-1

PRODUCT OVERVIEW S3F84UA/F84U8_UM_REV1.10

FEATURES

CPU

• SAM88 RC CPU core

Memory

• Program Memory (ROM)

- 48K × 8 bits program memory(S3F84UA)

- 8K × 8 bits program memory(S3F84U8)

- Internal flash memory (program memory)
√ Sector size: 128 bytes
√ 10 years data retention
√ Fast programming time:
√ User program and sector erase available
√ Endurance: 10,000 erase/program cycles
√ External serial programming support
√ Expandable OBP

TM

(on board program)

sector

• Data Memory (RAM)

- Including LCD display data memory

- 550 × 8 bits data memory(S3F84UA)

- 294 × 8 bits data memory(S3F84U8)

Instruction Set

• 78 instructions

• Idle and stop instructions added for power-down
modes

34 I/O Pins

• Output: 2 pins (44-QFP only)

• I/O: 10 pins (Sharing with other signal pins)

• I/O: 24 pins (Sharing with LCD signal outputs)

8-Bit Timer/Counter B

• Programmable 8-bit internal timer

• Carrier frequency generator

8-Bit Timer/Counter C

• Programmable 8-bit internal timer

• PWM function

Two 16-Bit Timer/Counter (D0/D1)

• Programmable 16-bit internal timer

• External event counter function

• PWM and capture function

Watch Timer

• Interval time: 1.995mS, 0.125S, 0.25S, and 0.5S
at 32.768 kHz

• 0.5/1/2/4 kHz Selectable buzzer output

LCD Controller/Driver

• 16 segments and 8 common terminals

• 1/2, 1/3, 1/4, and 1/8 duty selectable

• Resistor bias selectable

Analog to Digital Converter

• 8-channel analog input

• 10-bit conversion resolution

• 25uS conversion time

Interrupts

• 8 interrupt levels and 22 interrupt sources

• Fast interrupt processing feature

Two Channels UART

• Full-duplex serial I/O interface

• Four programmable operating modes

• Auto generating parity bit

8-Bit Basic Timer

• Watchdog timer function

• 4 kinds of clock source

8-bit Serial I/O Interface

• 8-bit transmit/receive mode

• 8-bit receive mode

8-Bit Timer/Counter A

• Programmable 8-bit internal timer

• LSB-first or MSB-first transmission selectable

• Internal or external clock source

• External event counter function

• PWM and capture function

1-2

S3F84UA/F84U8_UM_REV1.10 PRODUCT OVERVIEW

FEATURES (Continued)

Pattern Generation Module

• Pattern generation module triggered by timer
match signal and software

Low Voltage Reset (LVR)

• Criteria voltage: 2.2V

• En/Disable by smart option (ROM address: 3FH)

Two Power-Down Modes

• Idle: only CPU clock stops

• Stop: selected system clock and CPU clock stop

Oscillation Sources

• Crystal, ceramic, or RC for main clock

• Main clock frequency: 0.4 MHz − 12.0 MHz

• 32.768 kHz crystal oscillation circuit for
sub clock

Instruction Execution Times

• 333nS at 12.0 MHz fx (minimum)

• 122.1uS at 32.768 kHz fxt (minimum)

Operating Voltage Range

• 2.0 V to 5.5 V at 0.4 − 4.2 MHz

• 2.7 V to 5.5 V at 0.4 − 12.0 MHz

Operating Temperature Range

• −40°C to +85°C

Package Type

• 40-QFP-1010B, 42-SDIP-600

IVC

• Internal Voltage Converter for 5 V operations

Smart Option

• Low Voltage Reset (LVR) level and
enable/disable are at your hardwired option
(ROM address 3FH)

• ISP related option selectable
(ROM address 3EH)

1-3

PRODUCT OVERVIEW S3F84UA/F84U8_UM_REV1.10

BLOCK DIAGRAM

P1.1/

P1.0/

IN

OUT

XT

XIN

XOUT

XT

COM0-COM1/P2.0-P2.1

COM2-COM7/SEG0-SEG5/

SEG6-SEG13/P3.0-P3.7

SEG14-SEG21/P4.0-P4.7

TACLK/P4.2/SEG16

TACAP/P4.3/SEG17

TAOUT/TAPWM/P4.3

TBPWM/P4.1/SEG15

TD0CLK/P3.6 /INT6/SEG12

TD0CAP/P3.7/INT7/SEG13

TD0OUT/TD0PWM/P3.7

TD1CLK/P3.4 /INT4/SEG10

TD1CAP/P3.5/INT5/SEG11

TD1OUT/TD1PWM/P3.5

SCK/P3.3/INT3/SEG9

SO/P3.1/INT1/SEG7

PG0-PG7/P0.0-P0.7/

AD0-AD7/P0.0-P0.7/

INT0-INT7/P3.0-P 3 . 7

P2.2-P2.7

TCOUT/TCPWM/

P4.0/SEG14

SI/P3.2/INT2/SEG8

AD0-AD7

PG0-PG7

Low Voltage

Reset

LCD Driver/

Controller

8-bit Timer/

Counter A

8-bit Timer/

Counter B

8-bit Timer/

Counter C

16-bit Timer/

Counter D0

16-bit Timer/

Counter D1

SIO

Pattern

Generation

10-bit ADC

INTERRUPT

Main OSC

I/O Port and Interrupt

Control

SAM88 RC

Core

48KB/8KB

ROM

nRESETTEST

IVCREF AVREF VSSVDD

Sub OSC

550/294

Byte RAM

Watch-dog

Timer

Basic Timer

Watch Timer BUZ/P3.0/INT0/SEG6

I/O Port 0

I/O Port 1

I/O Port 2

I/O Port 3

I/O Port 4

UART0

UART1

P0.0-P0.7/PG0-PG7/
AD0-AD7

P1.0-P1.1/XTOUT-XTIN
P1.2-P1.3

P2.0-P2.1/COM0-COM1
P2.2-P2.7/COM2-COM7/

SEG0-SEG5
P3.0/SEG6/INT0/BUZ

P3.1/SEG7/INT1/SO
P3.2/SEG8/INT2/SI
P3.3/SEG9/INT3/SCK
P3.4/SEG10/INT4/TD1CLK
P3.5/SEG11/INT5/TD1OUT/
TD1PWM/TD1CAP
P3.6/SEG12/INT6/TD0CLK

P3.7/SEG13/INT7/TD0OUT/
TD0PWM/TD0CAP

P4.0/SEG14/TCOUT/TCPWM
P4.1/SEG15/TBPWM
P4.2/SEG16/TACLK
P4.3/SEG17/TAOUT/
TAPWM/TACAP
P4.4/SEG18/T
P4.5/SEG19/R
P4.6/SEG20/T
P4.7/SEG21/R

T

XD0/P4.6/SEG20

R

XD0/P4.7/SEG21

T

XD1/P4.4/SEG18

XD1/P4.5/SEG19

R

XD1

XD1

XD0

XD0

Figure 1-1. Block Diagram

1-4

S3F84UA/F84U8_UM_REV1.10 PRODUCT OVERVIEW

PIN ASSIGNMENT

P4.7/RXD0/SEG21

P4.5/R

P4.6/T

P0.4/PG4/AD4

P0.5/PG5/AD5

P0.7/PG7/AD7

P1.2

P0.6/PG6/AD6

P1.3

AV

REF

IVCREF

XD0/SEG20

XD1/SEG19

P0.3/PG3/AD3
P0.2/PG2/AD2
P0.1/PG1/AD1
P0.0/PG0/AD0

P1.1/XTIN

P1.0/XT

VDD
VSS

XOUT

XIN

TEST

OUT

434241403938373635

44

1
2
3
4

S3F84UA/

5
6
7
8
9
10
11

S3F84U8

44-QFP-1010B

1213141516

nRESET

COM2/SEG0/P2.2

COM0/P2.0

COM1/P2.1

1718192021

COM5/SEG3/P2.5

COM4/SEG2/P2.4

COM3/SEG1/P2.3

34

33

SEG18/TXD1/P4.4

32

SEG17/TAOUT/TAPWM/TACAP/P4.3

31

SEG16/TACLK/P4.2

30

SEG15/TBPWM/P4.1

29

SEG14/TCOUT/TCPWM/P4.0

28

SEG13/INT7/TD0OUT/TD0PWM/TD0CAP/P3.7

27

SEG12/INT6/TD0CLK/P3.6

26

SEG11/INT5/TD1OUT/TD1PWM/TD1CAP/P3.5

25

SEG10/INT4/TD1CLK/P3.4

24

SEG9/INT3/SCK/P3.3

23

22

SEG6/INT0/BUZ/P3.0

COM6/SEG4/P2.6

COM7/SEG5/P2.7

SEG7/INT1/SO/P3.1

SEG8/INT2/SI/P3.2

Figure 1-2. S3F84UA/F84U8 Pin Assignments (44-QFP-1010B)

1-5

PRODUCT OVERVIEW S3F84UA/F84U8_UM_REV1.10

REF

IVC

AVREF
P0.7/PG7/AD7
P0.6/PG6/AD6
P0.5/PG5/AD5
P0.4/PG4/AD4
P0.3/PG3/AD3
P0.2/PG2/AD2
P0.1/PG1/AD1
P0.0/PG0/AD0 SEG12/INT6/TD0CLK/P3.6

COM2/SEG0/P2.2

VDD

VSS

XOUT

TEST

P1.1/XTIN

OUT

P1.0/XT

nRESET
COM0/P2.0
COM1/P2.1

XIN

1
2
3
4
5
6
7
8
9

S3F84UA/

10
11
12
13
14
15
16
17
18
19
20
21

S3F84U8

42-SDIP-600

42

SEG21/R

41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22

XD0/P4.7

XD0/P4.6

SEG20/T

XD1/P4.5

SEG19/R
SEG18/TXD1/P4.4
SEG17/TAOUT/TAPWM/TACAP/P4.3
SEG16/TACLK/P4.2
SEG15/TBPWM/P4.1
SEG14/TCOUT/TCPWM/P4.0
SEG13/INT7/TD0OUT/TD0PWM/TD0CAP/P3.7

SEG11/INT5/TD1OUT/TD1PWM/TD1CAP/P3.5
SEG10/INT4/TD1CLK/P3.4
SEG9/INT3/SCK/P3.3
SEG8/INT2/SI/P3.2
SEG7/INT1/SO/P3.1
SEG6/INT0/BUZ/P3.0
COM7/SEG5/P2.7
COM6/SEG4/P2.6
COM5/SEG3/P2.5
COM4/SEG2/P2.4
COM3/SEG1/P2.3

Figure 1-3. S3F84UA/F84U8 Pin Assignments (42-SDIP-600)

1-6