NEC IE-789835-NS-EM1 User manual

User’s Manual
Target Devices
µ
µµ
µ
PD789835 Subseries
IE-789835-NS-EM1
Emulation Board
1991©
Document No. U16290EJ1V0UM00 (1st edition)
Date Published October 2002 N CP(K)
Printed in Japan
2002

User’s Manual U16290EJ1V0UM
2
[MEMO]

User’s Manual U16290EJ1V0UM 3
Windows is either a registered trademark or a trademark of Microsoft Corporation in the United States and/or
other countries.
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M8E 00. 4
The information in this document is current as of July, 2002. The information is subject to change
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User’s Manual U16290EJ1V0UM
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Regional Information
Some information contained in this document may vary from country to country. Before using any NEC
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•
Device availability
•
Ordering information
•
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•
Availability of related technical literature
•
Development environment specifications (for example, specifications for third-party tools and
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•
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Tel: [phone]
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User’s Manual U16290EJ1V0UM 5
INTRODUCTION
Product Overview The IE-789835-NS-EM1 is designed to be used with the IE-78K0S-NS or IE-78K0S-NS-A
to debug the following target devices that belong to the 78K/0S Series of 8-bit single-chip
microcontrollers.
• µ
PD789835 Subseries:
µ
PD789832, 789833, 789834, 789835, 78F9835
Target Readers This manual is intended for engineers who will use the IE-789835-NS-EM1 with the IE-
78K0S-NS or IE-78K0S-NS-A to perform system debugging.
Engineers who use this manual are expected to be thoroughly familiar with the target
device’s functions and usage methods and to be knowledgeable about debugging.
Organization When using the IE-789835-NS-EM1, refer to not only this manual (supplied with the IE-
789835-NS-EM1) but also the manual that is supplied with the IE-78K0S-NS or IE-
78K0S-NS-A.
IE-78K0S-NS IE-789835-NS-EM1
User’s Manual User’s Manual
•Basic specifications •General
•System configuration •Part names
•External interface functions •Installation
•Differences between target devices
and target interface circuits
IE-78K0S-NS-A
User’s Manual
•Basic specifications
•System configuration
•External interface functions
Purpose This manual is intended to give users an understanding of the various debugging
functions that can be performed when using the IE-789835-NS-EM1.

User’s Manual U16290EJ1V0UM
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Terminology The meanings of certain terms used in this manual are listed below.
Term Meaning
Emulation device This is a general term that refers to the device in the emulator that is used to emulate the target
device. It includes the emulation CPU.
Emulation CPU This is the CPU block in the emulator that is used to execute user-generated programs.
Target device This is the device that is the target for emulation.
Target system This includes the target program and the hardware provided by the user. When defined narrowly, it
includes only the hardware.
IE system This refers to the combination of the IE-78K0S-NS or IE-78K0S-NS-A and the IE-789835-NS-EM1.
Conventions Data significance: Higher digits on the left and lower digits on the right
Note: Footnote for item marked with Note in the text
Caution: Information requiring particular attention
Remark: Supplementary information
Related Documents The related documents (user’s manuals) indicated in this publication may include
preliminary versions. However, preliminary versions are not marked as such.
Document Name Document Number
IE-78K0S-NS In-Circuit Emulator U13549E
IE-78K0S-NS-A In-Circuit Emulator U15207E
IE-789835-NS-EM1 Emulation Board This manual
ID78K Series Integrated Debugger Ver. 2.30 or Later Operation (Windows™ Based) U15185E
µ
PD789835 Subseries U15559E
Caution The documents listed above are subject to change without notice. Be sure to use the latest
documents when designing.

User’s Manual U16290EJ1V0UM 7
CONTENTS
CHAPTER 1 GENERAL............................................................................................................................10
1.1 System Configuration................................................................................................................................ 11
1.2 Hardware Configuration ............................................................................................................................ 13
1.3 Basic Specifications .................................................................................................................................. 14
CHAPTER 2 PART NAMES ....................................................................................................................15
2.1 Parts of Main Unit ...................................................................................................................................... 16
2.2 Initial Switch and Jumper Settings .......................................................................................................... 17
2.3 Check Point Block ..................................................................................................................................... 17
CHAPTER 3 INSTALLATION...................................................................................................................18
3.1 Connection ................................................................................................................................................. 19
3.2 Switch and Jumper Settings of Main Unit ............................................................................................... 21
3.3 Power Supply Voltage Setting of Target Interface.................................................................................. 22
3.4 Clock Settings ............................................................................................................................................ 23
3.4.1 Overview of clock settings ............................................................................................................. 23
3.4.2 Main system clock settings............................................................................................................ 26
3.4.3 Subsystem clock settings .............................................................................................................. 30
3.5 External Trigger ......................................................................................................................................... 33
3.6 LCD Emulation ........................................................................................................................................... 34
CHAPTER 4 DIFFERENCES BETWEEN TARGET DEVICES AND TARGET INTERFACE
CIRCUITS ............................................................................................................................36
CHAPTER 5 RESTRICTIONS ..................................................................................................................40
APPENDIX A EMULATION PROBE PIN ASSIGNMENT TABLE ....................................................... 41
APPENDIX B CAUTIONS ON DESIGNING TARGET SYSTEM .........................................................43

User’s Manual U16290EJ1V0UM
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LIST OF FIGURES
Figure No. Title Page
1-1 System Configuration ....................................................................................................................................... 11
1-2 Basic Hardware Configuration .......................................................................................................................... 13
2-1 IE-789835-NS-EM1 Part Names....................................................................................................................... 16
2-2 Check Point Block............................................................................................................................................. 17
3-1 Connection of Emulation Probe (1)................................................................................................................... 19
3-2 Connection of Emulation Probe (2)................................................................................................................... 20
3-3 Connection of Emulation Probe (3)................................................................................................................... 20
3-4 Connecting TM1 and Power Supply Voltage of Target System........................................................................ 22
3-5 External Circuits Used as System Clock Oscillator .......................................................................................... 23
3-6 When Using Clock That Is Already Mounted on Emulation Board (Main System Clock) ................................. 24
3-7 When Using Clock That Is Already Mounted on Emulation Board (Subsystem Clock) .................................... 24
3-8 When Using User-Mounted Clock (Main System Clock) .................................................................................. 25
3-9 When Using User-Mounted Clock (Subsystem Clock) ..................................................................................... 25
3-10 When Supplying Pulse from Target System ..................................................................................................... 26
3-11 Connections on Parts Board (Main System Clock)........................................................................................... 27
3-12 Crystal Oscillator (Main System Clock) ............................................................................................................ 29
3-13 Pin Alignment of Crystal Oscillator and Socket (Main System Clock) .............................................................. 29
3-14 Connections on Parts Board (Subsystem Clock).............................................................................................. 31
3-15 Crystal Oscillator (Subsystem Clock) ............................................................................................................... 32
3-16 Pin Alignment of Crystal Oscillator and Socket ................................................................................................ 32
3-17 External Trigger Input Position ......................................................................................................................... 33
3-18 LCD Emulation Circuit ...................................................................................................................................... 34
3-19 Variable Resistance of External Boost Circuit .................................................................................................. 35
4-1 Equivalent Circuit of Emulation Circuit 1........................................................................................................... 37
4-2 Equipment Circuit of Emulation Circuit 2 .......................................................................................................... 38
4-3 Equivalent Circuit of Emulation Circuit 3........................................................................................................... 39
B-1 Distance Between In-Circuit Emulator and Conversion Connector .................................................................. 43
B-2 Connection to Target System ........................................................................................................................... 43

User’s Manual U16290EJ1V0UM 9
LIST OF TABLES
Table No Title Page
1-1 Correspence Between Emulation Probe and Conversion Connector................................................................12
1-2 Basic Specifications ..........................................................................................................................................14
2-1 Initial Switch and Jumper Settings.....................................................................................................................17
3-1 Switch and Jumper Settings on IE-78K0S-NS...................................................................................................21
3-2 Switch and Jumper Settings on IE-78K0S-NS-A...............................................................................................21
3-3 Power Supply Settings of Target Interface ........................................................................................................22
3-4 Main System Clock Settings..............................................................................................................................26
3-5 Subsystem Clock Settings.................................................................................................................................30
3-6 LCD Switch Settings..........................................................................................................................................34
3-7 Switch Settings of External Boost Circuit ..........................................................................................................35
A-1 SWEX-144SD-1 Pin Assignments.....................................................................................................................41

User’s Manual U16290EJ1V0UM
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CHAPTER 1 GENERAL
The IE-789835-NS-EM1 is a development tool for efficient debugging of hardware or software when using one of
the following target devices that belong to the 78K/0S Series of 8-bit single-chip microcontrollers.
This chapter describes the IE-789835-NS-EM1’s system configuration and basic specifications.
•Target device
•
µ
PD789835 Subseries

CHAPTER 1 GENERAL
User’s Manual U16290EJ1V0UM 11
1.1 System Configuration
Figure 1-1 illustrates the system configuration of the IE-789835-NS-EM1.
Figure 1-1. System Configuration
Interface cable
(NS IF Cable)
In-circuit emulator
IE-78K0S-NS
or
IE-78K0S-NS-A
(sold separately)
AC adapter
IE-70000-MC-PS-B
(sold separately)
Emulation probe
(sold separately)
Conversion connector
Note 3
(sold separately)
IE-789835-NS-EM1
(This product)
IE-70000-CD-IF-A
(sold separately)
Interface card
NS CARD
Cable
Control software
Host machine
PC-9800 series
or IBM PC/AT
or compatibles
Debugger
ID78K0S-NS
(sold separately)
Device file
(available separately)
Note 1
TM
Interface
cable
Note 2
Interface board
IE-70000-98-IF-C
(sold separately)
Interface board
IE-70000-PC-IF-C
(sold separately)
Interface board
IE-70000-PCI-IF-A
(sold separately)
or
MC CARD
Cable
FG Cable

CHAPTER 1 GENERAL
User’s Manual U16290EJ1V0UM
12
Notes 1. The device file is as follows, in accordance with the subseries.
µ
S××××DF789835:
µ
PD789835 Subseries
The device file can be downloaded from the NEC Electron Devices Web site
(URL: http://www.ic.nec.co.jp/micro).
2. The emulation probe SWEX-144SD-1 is a product of TOKYO ELETECH CORPORATION.
For further information, contact Daimaru Kogyo Co., Ltd.
Tokyo Electronics Department (TEL: [phone])
Osaka Electronics Department (TEL: [phone])
3. The conversion connectors NQPACK144SD and YQPACK144SD are products of TOKYO ELETECH
CORPORATION.
For further information, contact Daimaru Kogyo Co., Ltd.
Tokyo Electronics Department (TEL: [phone])
Osaka Electronics Department (TEL: [phone])
Table 1-1. Correspondence Between Emulation Probe and Conversion Connector
Package Emulation Probe Conversion Connector
144-pin plastic
LQFP (GJ type)
SWEX-144SD-1 (probe
length: 315 mm)
NQPACK144SD
YQPACK144SD

CHAPTER 1 GENERAL
User’s Manual U16290EJ1V0UM 13
1.2 Hardware Configuration
Figure 1-2 shows the IE-789835-EM1’s position in the basic hardware configuration.
Figure 1-2. Basic Hardware Configuration
IE-78K0S-NS or IE-78K0S-NS-A IE-789835-NS-EM1
Emulation probe
(Sold separately)
Dedicated bus interface IE system
Host machine Interface board
(Sold separately)
78K0S main board
(Sold separately)
Emulation board
(This product)
Interface card
(Sold separately)

CHAPTER 1 GENERAL
User’s Manual U16290EJ1V0UM
14
1.3 Basic Specifications
The IE-789835-EM1’s basic specifications are listed in Table 1-2.
Table 1-2. Basic Specifications
Parameter Description
Target device
µ
PD789835 Subseries
System clock Main system clock: 1.0 to 5.0 MHz, subsystem clock: 32.768 kHz
Main system
clock supply
External: Clock input from the target system via an emulation probe
Internal: Clock mounted on the emulation board (5.0 MHz) or clock mounted on the parts board by the user
Subsystem
clock supply
External: Clock input from the target system via an emulation probe
Internal: Clock mounted on the emulation board (32.768 kHz) or clock mounted on the parts board by the
user
Target interface
voltage
VDD = 1.8 to 3.6 V (same as the target device)
The IE-789835-NS-EM1 operates on the internal power supply (3 V) when not connected to the target
system.

User’s Manual U16290EJ1V0UM 15
CHAPTER 2 PART NAMES
This chapter introduces the parts of the IE-789835-NS-EM1 main unit.
The packing box contains the emulation board (IE-789835-NS-EM1), packing list, user’s manual, and guarantee
card.
If there are any missing or damaged items, please contact an NEC sales representative.
Fill out and return the guarantee card that comes with the main unit.

CHAPTER 2 PART NAMES
User’s Manual U16290EJ1V0UM
16
2.1 Parts of Main Unit
Figure 2-1. IE-789835-NS-EM1 Part Names
VR1
SW3
LED1
X1
IE-789835-NS-EM1
IC2
CN1
P3
P1
IC1
SW2
CN2
SW1
CP57
VLC3
X2
XT1
JP21
3
SW4
SW5 SW6
CN3
Check point
block
CN1 connector
for connecting
emulation probe
CN2, CN3
auxiliary connectors
for emulation probe
P2
GND TM1
LowVolt
CP79 EXTOUT
CP78 EXTIN
TM1
Note CN2 and CN3 are not connectors for connecting the emulation probe. These connectors allow
confirmation of the signal of each pin of CN1 as support for the emulation probe.
For details, refer to APPENDIX A EMULATION PROBE PIN ASSIGNMENT TABLE.

CHAPTER 2 PART NAMES
User’s Manual U16290EJ1V0UM 17
2.2 Initial Switch and Jumper Settings
The initial switch and jumper settings of the IE-789835-NS-EM1 are shown in Table 2-1.
For the setting of JP2, refer to 3.4 Clock Settings.
For the settings of SW1 to SW6, refer to 3.6 LCD Emulation.
Table 2-1. Initial Switch and Jumper Settings
JP2
Initial setting 2 and 3 shorted
SW1 SW2 SW3 SW4 SW5 SW6
Initial setting OFF ICE side ICE side ICE side ICE side ICE side
2.3 Check Point Block
The through holes of the check point block (refer to Figure 2-1 IE-789835-NS-EM1 Part Names) are provided at
intervals of 2.54 mm (1 inch) both vertically and horizontally, allowing confirmation of the signal of each port pin
inside the IE-789835-NS-EM1.
Figure 2-2. Check Point Block
Signals inside IE system
P00, P01, P02, P03, P04, P05, P06, P07
P10, P11, P60, P61, P62, N.C, N.C, N.C
P20, P21, P22, P23, P24, P25, P26, P27 Signals inside IE system
Signals inside IE system
Signals inside IE system
P80, P81, P82, P83, P84, P85, P86, P87
P30, P31, P32, P33, P34, P35, P36, P37
Caution Do not connect or capture the signal inside the IE system, or the IE system may be damaged.
Remark The through holes indicated by (N.C.) are not connected to any signal.

User’s Manual U16290EJ1V0UM
18
CHAPTER 3 INSTALLATION
This chapter describes methods for connecting the IE-789835-NS-EM1 to the IE-78K0S-NS or IE-78K0S-NS-A,
emulation probe, etc. Mode setting methods are also described.
Caution Connecting or removing components to or from the target system, or making switch or other
setting changes must be carried out after the power supply to both the IE system and the target
system has been switched OFF.

CHAPTER 3 INSTALLATION
User’s Manual U16290EJ1V0UM 19
3.1 Connection
(1) Connection with IE-78K0S-NS or IE-78K0S-NS-A main unit
See the IE-78K0S-NS User’s Manual (U13549E)Note for a description of how to connect the IE-789835-NS-EM1
to the IE-78K0S-NS.
Note When using the IE-78K0S-NS-A, refer to the IE-78K0S-NS-A User’s Manual (U15207E).
(2) Connection with emulation probe
Connect an emulation probe and supplied FG cable to the IE-789835-NS-EM1 as follows.
On this board, connect the emulation probe to CN1.
Caution Incorrect connection may damage the IE system.
Be sure to read the emulation probe’s user’s manual for a detailed description of the
connection method.
<Steps>
<1> Remove two plates on the side of the IE-78K0S-NS or IE-78K0S-NS-A frame. Loosen one FG screw on the
lower side of the connector on the IE system side of the emulation probe, align one end of the FG cable and
fix it by securing the FG screw.
Figure 3-1. Connection of Emulation Probe (1)
Main board of
IE-78K0S-NS
(sold separately) or
IE-78K0S-NS-A
(sold separately)
Emulation board
IE-789835-NS-EM1
Emulation probe
SWEX-144SD-1
(sold separately)
CN1
FG cable (supplied)
Plate on side of
frame

CHAPTER 3 INSTALLATION
User’s Manual U16290EJ1V0UM
20
<2> Open the upper side of the IE-78K0S-NS or IE-78K0S-NS-A main unit and connect the emulation probe to
the probe connector (CN1) on the IE-789835-NS-EM1.
Figure 3-2. Connection of Emulation Probe (2)
Main board
(sold separately)
IE-78K0S-NS or
IE-78K0S-NS-A
Emulation board
IE-789835-NS-EM1
Emulation probe
SWEX-144SD-1
(sold separately)
FG cable (supplied)
<3> Connect the other end of the FG cable by securing the screw on the plate of the IE-78K0S-NS or IE-78K0S-
NS-A frame.
Figure 3-3. Connection of Emulation Probe (3)
IE-789835-NS-EM1
IE-78K0S-NS or
IE-78K0S-NS-A
FG cable (supplied)
Emulation probe
SWEX-144SD-1
(sold separately)