NEC IE-789801-NS-EM1 User manual

User’s Manual
Target Devices
µ
µµ
µ
PD789800 Subseries
IE-789801-NS-EM1
Emulation Board
1991©
Document No. U13390EJ2V0UM00 (2nd edition)
Date Published May 2002 N CP(K)
Printed in Japan
1999

User’s Manual U13390EJ2V0UM
2
[MEMO]

User’s Manual U13390EJ2V0UM 3
Windows is either a registered trademark or a trademark of Microsoft Corporation in the United States and/or
other countries.
PC/AT is a trademark of International Business Machines Corporation.
M8E 00. 4
The information in this document is current as of April, 2002. The information is subject to change
without notice. For actual design-in, refer to the latest publications of NEC's data sheets or data
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User’s Manual U13390EJ2V0UM
4
Regional Information
Some information contained in this document may vary from country to country. Before using any NEC
product in your application, pIease contact the NEC office in your country to obtain a list of authorized
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•
Device availability
•
Ordering information
•
Product release schedule
•
Availability of related technical literature
•
Development environment specifications (for example, specifications for third-party tools and
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•
Network requirements
In addition, trademarks, registered trademarks, export restrictions, and other legal issues may also vary
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Tel: [phone]
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Fax: [phone]
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Tel: [phone]
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Tel: [phone]
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User’s Manual U13390EJ2V0UM 5
Major Revisions in This Edition
Pages Description
Throughout •Addition of IE-78K0S-NS-A as supported main board
•Addition of NP-H44GB-TQ as emulation probe
•Addition of TGB-044SAP as conversion socket/adapter
•Deletion of NP-42CU from supported emulation probes
pp.12, 13 Figure 1-1 System Configuration
•Change of supply medium for debugger ID78K0S-NS to CD-ROM
•Change of Notes 1 to 3.
p.15 Modification of a part of Table 1-1 Basic Specifications
pp.20 to 22 3.2.1 Overview of clock settings
•Change from “internal clock” to “clock oscillator”
•Addition of VSS pin in (a) Clock oscillator in Figure 3-2 External Circuit Used as System Clock
Oscillator
•Change from “resonator” to “clock oscillator or external clock” on target system in Figure 3-3 When
Using Clock (6 MHz) That Is Already Mounted on Emulation Board and Figure 3-4 When Using
User-Mounted Clock
•Change from “clock generator” to “external clock” in Figure 3-5 When Using an External Clock
p.29 Addition of 3.3 Setting Power Supply Voltage of Target Interface
p.30 Addition of 3.4 External Trigger
p.31 3.5 Switch and Jumper Settings
•Addition of (2) Switch and jumper settings on IE-78K0S-NS-A
p.36 Addition of APPENDIX B CAUTIONS ON DESIGNING TARGET SYSTEM
The mark shows major revised points.

User’s Manual U13390EJ2V0UM
6
INTRODUCTION
Product Overview The IE-789801-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
PD789800 Subseries:
µ
PD789800, 78F9801
Target Readers This manual is intended for engineers who will use the IE-789801-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-789801-NS-EM1, refer to not only this manual (supplied with the IE-
789801-NS-EM1) but also the manual that is supplied with the IE-78K0S-NS or IE78K0S-
NS-A.
IE-78K0S-NS
User’s Manual
IE-789801-NS-EM1
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-789801-NS-EM1.

User’s Manual U13390EJ2V0UM 7
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 (real chip) 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 IE78K0S-NS-A and the IE-789801-NS-
EM1.
Conventions This document is described in accordance with the following notations.
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 No.
IE-78K0S-NS U13549E
IE-78K0S-NS-A U15207E
IE-789801-NS-EM1 This manual
ID78K0-NS, ID78K0S-NS Integrated Debugger Ver. 2.20 or Later Operation (Windows™ Based) U14910E
µ
PD789800 Subseries U12978E
Caution The related documents listed above are subject to change without notice. Be sure to use the
latest documents when designing.

User’s Manual U13390EJ2V0UM
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CONTENTS
CHAPTER 1 GENERAL...........................................................................................................................11
1.1 System Configuration................................................................................................................................12
1.2 Hardware Configuration ............................................................................................................................14
1.3 Basic Specifications ..................................................................................................................................15
CHAPTER 2 PART NAMES.....................................................................................................................16
2.1 Parts of Main Unit.......................................................................................................................................17
CHAPTER 3 INSTALLATION ..................................................................................................................18
3.1 Connection .................................................................................................................................................19
3.2 Clock Settings ............................................................................................................................................20
3.2.1 Overview of clock settings .............................................................................................................20
3.2.2 System clock settings ....................................................................................................................23
3.3 Setting Power Supply Voltage of Target Interface ..................................................................................29
3.4 External Trigger..........................................................................................................................................30
3.5 Switch and Jumper Settings .....................................................................................................................31
CHAPTER 4 DIFFERENCES BETWEEN TARGET DEVICES AND TARGET INTERFACE
CIRCUITS ...........................................................................................................................32
APPENDIX A EMULATION PROBE PIN ASSIGNMENT TABLE............................................................35
APPENDIX B CAUTIONS ON DESIGNING TARGET SYSTEM...........................................................36

User’s Manual U13390EJ2V0UM 9
LIST OF FIGURES
Figure No. Title Page
1-1 System Configuration ........................................................................................................................................12
1-2 Basic Hardware Configuration...........................................................................................................................14
2-1 IE-789801-NS-EM1 Part Names .......................................................................................................................17
3-1 Connection of Emulation Probe.........................................................................................................................19
3-2 External Circuits Used as System Clock Oscillator ...........................................................................................20
3-3 When Using Clock (6 MHz) That Is Already Mounted on Emulation Board.......................................................21
3-4 When Using User-Mounted Clock .....................................................................................................................21
3-5 When Using an External Clock..........................................................................................................................22
3-6 Connections on Parts Board (When Using User-Mounted Clock).....................................................................24
3-7 Crystal Oscillator (When Using User-Mounted Clock).......................................................................................26
3-8 Pin Alignment of Crystal Oscillator and Socket .................................................................................................26
3-9 Connection of TM1 and Power Supply Voltage of Target System.....................................................................29
3-10 External Trigger Input Position ..........................................................................................................................30
4-1 Equivalent Circuit 1 of Emulation Circuit ...........................................................................................................34
4-2 Equivalent Circuit 2 of Emulation Circuit ...........................................................................................................34
B-1 Distance Between In-Circuit Emulator and Conversion Socket.........................................................................36
B-2 Connection Condition of Target System (NP-H44GB-TQ) ................................................................................37

User’s Manual U13390EJ2V0UM
10
LIST OF TABLES
Table No. Title Page
1-1 Basic Specifications.......................................................................................................................................... 15
3-1 System Clock Settings...................................................................................................................................... 23
3-2 Switch and Jumper Settings on IE-78K0S-NS.................................................................................................. 31
3-3 Switch and Jumper Settings on IE-78K0S-NS-A .............................................................................................. 31
A-1 NP-44GB, NP-44GB-TQ, and NP-H44GB-TQ Pin Assignments ...................................................................... 35

User’s Manual U13390EJ2V0UM 11
CHAPTER 1 GENERAL
The IE-789801-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-789801-NS-EM1’s system configuration and basic specifications.
•Target device
•
µ
PD789800 Subseries

CHAPTER 1 GENERAL
User’s Manual U13390EJ2V0UM
12
1.1 System Configuration
Figure 1-1 illustrates the IE-789801-NS-EM1’s system configuration.
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 socket/conversion adapter
(sold separately)
IE-789801-NS-EM1
(This product)
IE-70000-CD-IF
(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
Note 3
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

CHAPTER 1 GENERAL
User’s Manual U13390EJ2V0UM 13
Notes 1. The device file is as follows.
µ
S××××DF789801
The device file can be downloaded from the NEC Electron Devices Web site
(URL: http://www.ic.nec.co.jp/micro).
2. The emulation probes are as follows.
NP-44GB: For 44-pin plastic QFP (GB type: EV-9200G-44 supported)
NP-44GB-TQ: For 44-pin plastic QFP (GB type: TGB-044)
NP-H44GB-TQ: Long type for 44-pin plastic QFP (GB type: TGB-044)
3. The conversion socket/conversion adapters are as follows.
EV-9200G-44: For 44-pin plastic QFP (GB-8ES type)
TGB-044SAP: For 44-pin plastic QFP (GB-8ES type)
Remark NP-44GB, NP-44GB-TQ, and NP-H44GB-TQ are products of Naito Densei Machida Mfg. Co., Ltd.
For further information, contact Naito Densei Machida Mfg. Co., Ltd. (TEL: [phone])
TGB-044SAP is a product of TOKYO ELETECH CORPORATION.
For further information, contact Daimaru Kogyo, Ltd.
Tokyo Electronics Department (TEL: [phone])
Osaka Electronics Department (TEL: [phone])

CHAPTER 1 GENERAL
User’s Manual U13390EJ2V0UM
14
1.2 Hardware Configuration
Figure 1-2 shows the IE-789801-NS-EM1’s position in the basic hardware configuration.
Figure 1-2. Basic Hardware Configuration
IE-78K0S-NS (sold separately)/
IE-78K0S-NS-A (sold separately) IE-789801-NS-EM1
Emulation probe
(sold separately)
Dedicated bus interface
IE system
Host machine Interface board
(sold separately) 78K0S main board Emulation board
(This product)
Interface card
(sold separately)

CHAPTER 1 GENERAL
User’s Manual U13390EJ2V0UM 15
1.3 Basic Specifications
The IE-789801-NS-EM1’s basic specifications are listed in Table 1-1.
Table 1-1. Basic Specifications
Parameter Description
Target device
µ
PD789800 Subseries
System clock 6 MHz
Clock supply External: Pulse input from the target system via an emulation probe
Internal: Clock mounted on emulation board (6 MHz), or clock mounted on parts
board by user
Target interface voltage VDD = 4.0 to 5.5 V (same as the target device)
Operates with internal power supply (5 V) when not connected to the target system.

User’s Manual U13390EJ2V0UM
16
CHAPTER 2 PART NAMES
This chapter introduces the parts of the IE-789801-NS-EM1 main unit.
The packing box contains the emulation board (IE-789801-NS-EM1).
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 U13390EJ2V0UM00 17
2.1 Parts of Main Unit
Figure 2-1. IE-789801-NS-EM1 Part Names
System
clock
X1
Probe connector
CN1 44GB
LED1
LED1
GND
Low Volt
EXTOUT
EXTIN
TM1
TM1
CN1
CN2
X1
G-789801 EM1 Board
IE-789801-NS-EM1

User’s Manual U13390EJ2V0UM
18
CHAPTER 3 INSTALLATION
This chapter describes methods for connecting the IE-789801-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 U13390EJ2V0UM 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) for a description of how to connect the IE-789801-NS-EM1 to
the IE-78K0S-NS or IE-78K0S-NS-ANote.
Note When using the IE-78K0S-NS-A, refer to the IE-78K0S-NS-A User’s Manual (U15207E).
(2) Connection with emulation probe
See the IE-78K0S-NS User’s Manual (U13549E) for a description of how to connect an emulation probe to the
IE-789801-NS-EM1Note.
On this board, connect the emulation probe to CN1.
Note When using the IE-78K0S-NS-A, refer to the IE-78K0S-NS-A User’s Manual (U15207E).
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.
Figure 3-1. Connection of Emulation Probe
Main board (sold separately)
(IE-78K0S-NS or IE-78K0S-NS-A)
IE-789801-NS-EM1
Probe
(sold separately)
CN1 44GB
CN2 Not used

CHAPTER 3 INSTALLATION
User’s Manual U13390EJ2V0UM
20
3.2 Clock Settings
3.2.1 Overview of clock settings
The system clocks to be used during debugging can be selected from (1) to (3) below.
(1) Clock that is already mounted on emulation board
(2) Clock that is mounted by user
(3) Pulse input from target system
If the target system includes a clock oscillator, select either (1) Clock that is already mounted on emulation
board or (2) Clock that is mounted by user. For a clock oscillator, the target device is connected to a resonator
and the target device’s internal oscillator is used. An example of the external circuit is shown in part (a) of Figure 3-2.
During emulation, the oscillator that is mounted on the target system is not used. Instead, the clock that is mounted
on the emulation board which is installed for the IE-78K0S-NS or IE-78K0S-NS-A is used.
If the target system includes an external clock, select (3) Pulse input from target system. For an external clock,
a clock signal is supplied from outside of the target device and the target device’s internal oscillator is not used. An
example of the external circuit is shown in part (b) of Figure 3-2.
Caution The IE system will be hung-up if the system clock is not supplied normally. Moreover, be sure to
input a rectangular wave as the clock from the target. However, it is not necessary to supply a
clock to the X2 pin.
Figure 3-2. External Circuits Used as System Clock Oscillator
(a) Clock oscillator (b) External clock
X2 X2
Target device
Target device
External
clock
X1
X1
V SS