Epson S1C6S3N2 User manual

MF859-06
Technical Manual
CMOS 4-BIT SINGLE CHIP MICROCOMPUTER
S1C6S3N2 Technical Hardware/S1C6S3N2 Technical Software
S1C6S3N2

NOTICE
No part of this material may be reproduced or duplicated in any form or by any means without the written permission of Seiko
Epson. Seiko Epson reserves the right to make changes to this material without notice. Seiko Epson does not assume any
liability of any kind arising out of any inaccuracies contained in this material or due to its application or use in any product or
circuit and, further, there is no representation that this material is applicable to products requiring high level reliability, such
as medical products. Moreover, no license to any intellectual property rights is granted by implication or otherwise, and there
is no representation or warranty that anything made in accordance with this material will be free from any patent or copyright
infringement of a third party. This material or portions thereof may contain technology or the subject relating to strategic
products under the control of the Foreign Exchange and Foreign Trade Law of Japan and may require an export license from
the Ministry of International Trade and Industry or other approval from another government agency.
© SEIKO EPSON CORPORATION 2001 All rights reserved.

PREFACE
This manual is individualy described about the hardware and the software
of the S1C6S3N2.
I. S1C6S3N2 Technical Hardware
This part explains the function of the S1C6S3N2, the circuit configu-
rations, and details the controlling method.
II. S1C6S3N2 Technical Software
This part explains the programming method of the S1C6S3N2.
Software
Hardware

The information of the product number change
Configuration of product number
Devices
Comparison table between new and previous number
S1C60 Family processors
Starting April 1, 2001, the product number will be changed as listed below. To order from April 1,
2001 please use the new product number. For further information, please contact Epson sales
representative.
S1 C60N01 F0A01 Packing specification
Specification
Package (D: die form; F: QFP)
Model number
Model name (C: microcomputer, digital products)
Product classification (S1: semiconductor)
Development tools
S5U1 C60R08 D1 1Packing specification
Version (1: Version 1 ∗2)
Tool type (D1: Development Tool ∗1)
Corresponding model number (60R08: for S1C60R08)
Tool classification (C: microcomputer use)
Product classification
(S5U1: development tool for semiconductor products)
∗1: For details about tool types, see the tables below. (In some manuals, tool types are represented by one digit.)
∗2: Actual versions are not written in the manuals.
Previous No.
E0C6001
E0C6002
E0C6003
E0C6004
E0C6005
E0C6006
E0C6007
E0C6008
E0C6009
E0C6011
E0C6013
E0C6014
E0C60R08
New No.
S1C60N01
S1C60N02
S1C60N03
S1C60N04
S1C60N05
S1C60N06
S1C60N07
S1C60N08
S1C60N09
S1C60N11
S1C60N13
S1C60140
S1C60R08
S1C62 Family processors
Previous No.
E0C621A
E0C6215
E0C621C
E0C6S27
E0C6S37
E0C623A
E0C623E
E0C6S32
E0C6233
E0C6235
E0C623B
E0C6244
E0C624A
E0C6S46
New No.
S1C621A0
S1C62150
S1C621C0
S1C6S2N7
S1C6S3N7
S1C6N3A0
S1C6N3E0
S1C6S3N2
S1C62N33
S1C62N35
S1C6N3B0
S1C62440
S1C624A0
S1C6S460
Previous No.
E0C6247
E0C6248
E0C6S48
E0C624C
E0C6251
E0C6256
E0C6292
E0C6262
E0C6266
E0C6274
E0C6281
E0C6282
E0C62M2
E0C62T3
New No.
S1C62470
S1C62480
S1C6S480
S1C624C0
S1C62N51
S1C62560
S1C62920
S1C62N62
S1C62660
S1C62740
S1C62N81
S1C62N82
S1C62M20
S1C62T30
Comparison table between new and previous number of development tools
Development tools for the S1C60/62 Family
Previous No.
ASM62
DEV6001
DEV6002
DEV6003
DEV6004
DEV6005
DEV6006
DEV6007
DEV6008
DEV6009
DEV6011
DEV60R08
DEV621A
DEV621C
DEV623B
DEV6244
DEV624A
DEV624C
DEV6248
DEV6247
New No.
S5U1C62000A
S5U1C60N01D
S5U1C60N02D
S5U1C60N03D
S5U1C60N04D
S5U1C60N05D
S5U1C60N06D
S5U1C60N07D
S5U1C60N08D
S5U1C60N09D
S5U1C60N11D
S5U1C60R08D
S5U1C621A0D
S5U1C621C0D
S5U1C623B0D
S5U1C62440D
S5U1C624A0D
S5U1C624C0D
S5U1C62480D
S5U1C62470D
Previous No.
DEV6262
DEV6266
DEV6274
DEV6292
DEV62M2
DEV6233
DEV6235
DEV6251
DEV6256
DEV6281
DEV6282
DEV6S27
DEV6S32
DEV6S37
EVA6008
EVA6011
EVA621AR
EVA621C
EVA6237
EVA623A
New No.
S5U1C62620D
S5U1C62660D
S5U1C62740D
S5U1C62920D
S5U1C62M20D
S5U1C62N33D
S5U1C62N35D
S5U1C62N51D
S5U1C62560D
S5U1C62N81D
S5U1C62N82D
S5U1C6S2N7D
S5U1C6S3N2D
S5U1C6S3N7D
S5U1C60N08E
S5U1C60N11E
S5U1C621A0E2
S5U1C621C0E
S5U1C62N37E
S5U1C623A0E
Previous No.
EVA623B
EVA623E
EVA6247
EVA6248
EVA6251R
EVA6256
EVA6262
EVA6266
EVA6274
EVA6281
EVA6282
EVA62M1
EVA62T3
EVA6S27
EVA6S32R
ICE62R
KIT6003
KIT6004
KIT6007
New No.
S5U1C623B0E
S5U1C623E0E
S5U1C62470E
S5U1C62480E
S5U1C62N51E1
S5U1C62N56E
S5U1C62620E
S5U1C62660E
S5U1C62740E
S5U1C62N81E
S5U1C62N82E
S5U1C62M10E
S5U1C62T30E
S5U1C6S2N7E
S5U1C6S3N2E2
S5U1C62000H
S5U1C60N03K
S5U1C60N04K
S5U1C60N07K
00
00

HardwareHardware
S1C6S3N2
I. Technical Hardware

HardwareHardware
S1C6S3N2 TECHNICAL HARDWARE EPSON I-i
CONTENTS
CONTENTS
CHAPTER 1 OVERVIEW....................................................................... I-1
1.1 Configuration ................................................................... I-1
1.2 Features .......................................................................... I-2
1.3 Block Diagram ................................................................. I-3
1.4 Pin Layout Diagram......................................................... I-4
1.5 Pin Description ................................................................ I-5
CHAPTER 2 POWER SUPPLY AND INITIAL RESET ................................ I-6
2.1 Power Supply .................................................................. I-6
2.2 Initial Reset..................................................................... I-10
Reset pin (RESET) ................................................... I-11
Simultaneous high input to input ports (K00–K03) .. I-11
Watchdog timer (Auxiliary reset).............................. I-11
Oscillation detection circuit (Auxiliary reset)............ I-12
Internal register at initial setting ............................. I-12
2.3 Test Terminal (TEST)..................................................... I-12
CHAPTER 3 CPU, ROM, RAM ............................................................ I-13
3.1 CPU................................................................................ I-13
3.2 ROM ............................................................................... I-14
3.3 RAM ............................................................................... I-15
CHAPTER 4 PERIPHERAL CIRCUITS AND OPERATION ...................... I-16
4.1 Memory Map .................................................................. I-16
4.2 Resetting Watchdog Timer............................................. I-24
Configuration of watchdog timer.............................. I-24
Mask option ............................................................ I-24
Control of watchdog timer ....................................... I-25
Programming note................................................... I-25

I-ii EPSON S1C6S3N2 TECHNICAL HARDWARE
CONTENTS
4.3 Oscillation Circuit............................................................ I-26
OSC1 oscillation circuit........................................... I-26
OSC3 oscillation circuit........................................... I-26
Configuration of oscillation circuit........................... I-28
Control of oscillation circuit .................................... I-29
Programming notes ................................................. I-30
4.4 Input Ports (K00–K03, K10) ........................................... I-31
Configuration of input ports .................................... I-31
Differential registers and interrupt function ............ I-32
Mask option ............................................................ I-34
Control of input ports.............................................. I-35
Programming notes ................................................. I-37
4.5 Output Ports (R00–R03, R10–R13) ............................... I-40
Configuration of output ports .................................. I-40
Mask option ............................................................ I-40
Control of output ports............................................ I-43
Programming note................................................... I-45
4.6 I/O Ports (P00–P03, P10–P13) ...................................... I-46
Configuration of I/O ports....................................... I-46
I/O control register and I/O mode........................... I-47
Mask option ............................................................ I-47
Control of I/O ports ................................................ I-48
Programming notes ................................................. I-50
4.7 LCD Driver (COM0–3, SEG0–37) .................................. I-51
Configuration of LCD driver..................................... I-51
Switching between dynamic and ALL OFF ............... I-56
Mask option (segment allocation)............................. I-57
Control of LCD driver .............................................. I-59
Programming notes ................................................. I-60
4.8 Clock Timer .................................................................... I-61
Configuration of clock timer .................................... I-61
Interrupt function ................................................... I-62
Control of clock timer.............................................. I-63
Programming notes ................................................. I-65