User’s Manual
Target Devices
µ
µµ
µ
PD789842 Subseries
IE-789842-NS-EM1
Emulation Board
Document No. U14545EJ2V0UM00 (2nd edition)
Date Published December 2002 N CP(K)
©
Printed in Japan
User’s Manual U14545EJ2V0UM
2
[MEMO]
User’s Manual U14545EJ2V0UM 3
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User’s Manual U14545EJ2V0UM
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Regional Information
• Device availability
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User’s Manual U14545EJ2V0UM 5
Major Revisions in This Edition
Page Description
Throughout •Addition of IE-78K0S-NS-A as supported in-circuit emulator
•Addition of NP-44GB-TQ and NP-H44GB-TQ as supported emulation probes
•Addition of TGB-044SAP as supported conversion adapter
pp. 12, 13 Figure 1-1 System Configuration
•Modification of supply medium of debugger ID78K0S-NS to CD-ROM
•Modification of the shape of interface cable
•Modification of Notes 1 to 3
•Addition of Table 1-1 Correspondence Between Emulation Probe and Conversion
Socket/Conversion Adapter
p. 15 Partial modification of Table 1-2 Basic Specifications
p. 20 3.2 Switch and Jumper Settings on Main Unit
•Addition of (2) Settings on the IE-78K0S-NS-A
p. 28 of previous edition Deletion of 3.3 Low-Voltage Emulation Setting
p. 21 Addition of 3.3 Setting Power Supply Voltage of Target Interface
pp. 22 to 24 3.4.1 Overview of clock settings
•Change from “internal clock” in previous edition to “clock oscillator”
•Figure 3-3 External Circuits Used as System Clock Oscillator
Addition of VSS pin in figure of (a) Clock oscillator
•Figure 3-4 When Using Clock That Is Already Mounted on Emulation Board, Figure 3-5
When Using User-Mounted Clock
Change from “resonator” in previous revision to “clock oscillator or external clock” on target
system
•Change from “clock generator” in previous edition to “external clock” in Figure 3-6 When
Supplying Pulse from Target System
pp. 24 to 27 3.4.2 System clock settings
•Change from “main system clock” in the previous edition to “system clock”
pp. 34, 35 Addition of APPENDIX B NOTES ON DESIGNING TARGET SYSTEM
The mark shows major revised points.
User’s Manual U14545EJ2V0UM
6
INTRODUCTION
Product Overview The IE-789842-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
PD789842 Subseries:
µ
PD789841, 789842, 78F9842
Target Readers This manual is intended for engineers who will use the IE-789842-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 use methods and to be knowledgeable about debugging.
Organization When using the IE-789842-NS-EM1, refer to not only this manual (supplied with the IE-
789842-NS-EM1) but also the manual that is supplied with the IE-78K0S-NS or IE-
78K0S-NS-A.
IE-78K0-NS IE-789842-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 • Precautions
User’s Manual
• Basic specifications
• System configuration
• External interface functions
Purpose This manual’s purpose is to explain various debugging functions that can be performed
when using the IE-789842-NS-EM1.
User’s Manual U14545EJ2V0UM 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 to be emulated.
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 in-circuit emulator (IE-78K0S-NS or IE-78K0S-NS-A) and
emulation board (IE-789842-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-789842-NS-EM1 Emulation Board This manual
ID78K Series Integrated Debugger Ver. 2.30 or Later Operation Windows™ Based U15185E
µ
PD789842 Subseries U13776E
Caution The documents listed above are subject to change without notice. Be sure to use the latest
documents when designing.
User’s Manual U14545EJ2V0UM
8
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 Switch and Jumper Settings on Main Unit...............................................................................................20
3.3 Setting Power Supply Voltage of Target Interface ..................................................................................21
3.4 Clock Settings ............................................................................................................................................22
3.4.1 Overview of clock settings .............................................................................................................22
3.4.2 System clock settings ....................................................................................................................24
3.5 External Trigger..........................................................................................................................................28
CHAPTER 4 DIFFERENCES BETWEEN TARGET DEVICE AND TARGET INTERFACE CIRCUIT....29
CHAPTER 5 CAUTIONS..........................................................................................................................32
APPENDIX A EMULATION PROBE PIN ASSIGNMENT TABLE...........................................................33
APPENDIX B NOTES ON DESIGNING TARGET SYSTEM ....................................................................34
User’s Manual U14545EJ2V0UM 9
LIST OF FIGURES
Figure No. Title Page
1-1 System Configuration ........................................................................................................................................12
1-2 Basic Hardware Configuration...........................................................................................................................14
2-1 IE-789842-NS-EM1 Part Names .......................................................................................................................17
3-1 Connection of Emulation Probe.........................................................................................................................19
3-2 Connecting TM1 and Target System Power Supply Voltage.............................................................................21
3-3 External Circuits Used as System Clock Oscillator ...........................................................................................22
3-4 When Using Clock That Is Already Mounted on Emulation Board ....................................................................23
3-5 When Using User-Mounted Clock .....................................................................................................................23
3-6 When Supplying Pulse from Target System......................................................................................................24
3-7 Connections on Parts Board..............................................................................................................................25
3-8 Crystal Oscillator ...............................................................................................................................................26
3-9 Pin Alignment of Crystal Oscillator and Socket .................................................................................................27
3-10 External Trigger Input Position ..........................................................................................................................28
4-1 Equivalent Circuit of Emulation Circuit ..............................................................................................................31
B-1 Distance Between IE System and Conversion Adapter ....................................................................................34
B-2 Connection Conditions of Target System (NP-44GB-TQ) .................................................................................35
B-3 Connection Conditions of Target System (NP-H44GB-TQ)...............................................................................35
User’s Manual U14545EJ2V0UM
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LIST OF TABLES
Table No. Title Page
1-1 Correspondence Between Emulation Probe and Conversion Socket/Conversion Adapter.............................. 13
1-2 Basic Specifications.......................................................................................................................................... 15
3-1 Switch and Jumper Settings on IE-78K0S-NS.................................................................................................. 20
3-2 Switch and Jumper Settings on IE-78K0S-NS-A .............................................................................................. 20
3-3 Setting Power Supply of Target Interface ......................................................................................................... 21
3-4 System Clock Settings...................................................................................................................................... 24
A-1 NP-44GB, NP-44GB-TQ, NP-H44GB-TQ Pin Assignments .............................................................................33
B-1 Distance Between IE System and Conversion Adapter.................................................................................... 34
User’s Manual U14545EJ2V0UM 11
CHAPTER 1 GENERAL
The IE-789842-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-789842-NS-EM1’s system configuration and basic specifications.
•Target devices
•
µ
PD789842 Subseries
CHAPTER 1 GENERAL
User’s Manual U14545EJ2V0UM
12
1.1 System Configuration
Figure 1-1 illustrates the IE-789842-NS-EM1’s system configuration.
Figure 1-1. System Configuration
FG Cable
IE-78K0S-NS
or
IE-78K0S-NS-A
(sold separately)
IE-70000-CD-IF-A
(sold separately)
Debugger
ID78K0S-NS
(sold separately)
Device file
Note 1
(obtain separately)
Control software
Host machine
PC-9800 Series,
IBM PC/AT™
or compatibles
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
Interface cable
(NS IF Cable)
In-circuit emulator
IE-789842-NS-EM1
(This product)
AC adapter
IE-70000-MC-PS-B
(sold separately)
Emulation probe
Note 2
(sold separately)
Conversion socket/conversion adapter
Note 3
(sold separately)
NS CARD
Cable MC CARD
Cable
Interface
cable
Interface card
CHAPTER 1 GENERAL
User’s Manual U14545EJ2V0UM 13
Notes 1. The device file is as follows, in accordance with the subseries.
µ
S××××DF789842:
µ
PD789842 Subseries
The device file can be downloaded from the web site of NEC Electronics
(http://www.necel.com/micro/)
2. The emulation probes 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: +81-45-475-4191)
3. The conversion adapter TGB-044SAP is a product of TOKYO ELETECH CORPORATION.
For further information, contact Daimaru Kogyo Co., Ltd.
Tokyo Electronics Department (TEL: +81-3-3820-7112)
Osaka Electronics Department (TEL: +81-6-6244-6672)
Table 1-1. Correspondence Between Emulation Probe and Conversion Socket/Conversion Adapter
Package Emulation Probe Conversion Socket/Conversion Adapter
NP-44GB (probe length: 200 mm) EV-9200G-44
NP-44GB-TQ (probe length: 200 mm)
44-pin plastic QFP
(GB type)
NP-H44GB-TQ (probe length: 400 mm)
TGB-044SAP
CHAPTER 1 GENERAL
User’s Manual U14545EJ2V0UM
14
1.2 Hardware Configuration
Figure 1-2 shows the IE-789842-NS-EM1’s position in the basic hardware configuration.
Figure 1-2. Basic Hardware Configuration
IE-78K0S-NS or
IE-78K0S-NS-A IE-789842-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 U14545EJ2V0UM 15
1.3 Basic Specifications
The basic specifications of the IE-789842-NS-EM1 are listed in Table 1-2.
Table 1-2. Basic Specifications
Parameter Description
Target device
µ
PD789842 Subseries
System clock 8.38 MHz
System clock supply External: Input via an emulation probe from the target system
Internal: Mounted on the emulation board (8.38 MHz), or mounted on the parts board by
the user
Target interface voltage VDD = 4.0 to 5.5 V (same as that of target device)
Operates on internal power supply (5 V) when target system is not connected
User’s Manual U14545EJ2V0UM
16
CHAPTER 2 PART NAMES
This chapter introduces the parts of the IE-789842-NS-EM1 main unit.
The packing box contains the emulation board (IE-789842-NS-EM1), packing list, user’s manual, and guarantee
card.
If there are any missing or damaged items, please contact an NEC Electronics sales representative.
Fill out and return the guarantee card that comes with the main unit.
CHAPTER 2 PART NAMES
User’s Manual U14545EJ2V0UM 17
2.1 Parts of Main Unit
Figure 2-1 shows the part names of the IE-789842-NS-EM1.
Figure 2-1. IE-789842-NS-EM1 Part Names
GND
LowVolt
EXTOUT
EXTIN
LED1
Probe connector
CN1 44GB
System clock
X1
44GB
CN1
IE-789842-NS-EM1
X1
TM1
User’s Manual U14545EJ2V0UM
18
CHAPTER 3 INSTALLATION
This chapter describes methods for connecting the IE-789842-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 U14545EJ2V0UM 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-789842-NS-EM1 to
the IE-78K0S-NSNote.
Note When using the IE-78K0S-NS-A, see 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-789842-NS-EM1Note.
On this board, connect the emulation probe to CN1.
Note When using the IE-78K0S-NS-A, see 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 of
IE-78K0S-NS (sold separately) or
IE-78K0S-NS-A (sold separately)
IE-789842-NS-EM1
CN1 44GB
Emulation probe
(sold separately)
CHAPTER 3 INSTALLATION
User’s Manual U14545EJ2V0UM
20
3.2 Switch and Jumper Settings on Main Unit
(1) Settings on the IE-78K0S-NS
When using the IE-789842-NS-EM1, set the switches and jumpers on the IE-78K0S-NS as shown in Table 3-1.
For details of these switch and jumper settings, refer to the IE-78K0S-NS User’s Manual (U13549E).
Table 3-1. Switch and Jumper Settings on IE-78K0S-NS
SW1 SW3 SW4 JP1 JP4
Setting OFF All switches ON
(Fixed)
All switches ON
(Fixed)
2 and 3 shorted 1 and 2 shorted
Caution Incorrect connection may damage the IE-789842-NS-EM1.
(2) Settings on the IE-78K0S-NS-A
When using the IE-789842-NS-EM1, set the switches and jumpers on the IE-78K0S-NS-A as shown in Table 3-
2. For details of these switch and jumper settings, refer to the IE-78K0S-NS-A User’s Manual (U15207E).
Table 3-2. Switch and Jumper Settings on IE-78K0S-NS-A
SW1 JP1 JP3
Setting OFF 1 and 2 shorted (fixed) Shorted (fixed)
Caution Incorrect connection may damage the IE-789842-NS-EM1.
CHAPTER 3 INSTALLATION
User’s Manual U14545EJ2V0UM 21
3.3 Setting Power Supply Voltage of Target Interface
In the IE system, emulation is possible with a voltage of the same level as the power supply voltage of the target
system.
When the target system is not connected, the IE system automatically operates with the emulator’s internal power
supply (5 V).
When debugging with a voltage that is the same level as that of the target system, supply the same voltage as that
of the target system to the TM1 terminal pin of the IE-789842-NS-EM1 (the same applies when the voltage is 5 V).
Set the target voltage to between 4.0 and 5.0 V.
For how to select the operating power supply, refer to the ID78K Series Ver.2.30 or Later Operation Windows-
Based User’s Manual (U15185E).
•Maximum current consumption of TM1
4.0 to 5.0 V: Approximately 125 mA
Table 3-3. Setting Power Supply of Target Interface
Integrated Debugger (ID78K0S-NS)
Power Supply of Target Interface (LVCC)
Operating Power Supply Selection
When connecting target system 4.0 to 5.0 V Target
When not connecting target system 5 V Internal
Figure 3-2. Connecting TM1 and Target System Power Supply Voltage
CN1
Emulation
LowVolt
V
DD
GND
GND
TM1
LED1
IE-789842-NS-EM1
X1
Target system power
supply voltage
Emulation
probe
Target system
Caution Before connecting TM1 on the board and the target system power supply voltage, turn off the
power to the IE-78K0S-NS or IE-78K0S-NS-A.
Remark The VDD pin on the target system is exclusively used to control LED1, which monitors whether the
power supply of the target system is connected in the IE-789842-NS-EM1.
CHAPTER 3 INSTALLATION
User’s Manual U14545EJ2V0UM
22
3.4 Clock Settings
3.4.1 Overview of clock settings
The system clock 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 the clock oscillator, a resonator is connected to the target device
and the target device’s internal oscillator is used. An example of the external circuit is shown in part (a) of Figure 3-3.
During emulation, the oscillator that is mounted on the target system is not used. Instead, the clock that is mounted
on the emulation board installed in the IE-78K0S-NS or IE-78K0S-NS-A is used.
If the target system includes an external clock, select either (1) Clock that is already mounted on emulation
board, (2) Clock that is mounted by user, or (3) Pulse input from target system.
For the 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 3-3.
Caution The IE system will be hung-up if the main system clock is not supplied normally. Moreover, be
sure to input a rectangular wave as the pulse from the target system. There is no need to
supply a clock to the X2 pin. Also, even if a crystal resonator is connected directly to X1, the
target device will not operate.
Figure 3-3. External Circuits Used as System Clock Oscillator
(a) Clock oscillator (b) External clock
X1
Crystal or ceramic
resonator
V
SS
External
clock
X2
X1
X2
Target device Target device
CHAPTER 3 INSTALLATION
User’s Manual U14545EJ2V0UM 23
(1) Clock that is already mounted on emulation board
The crystal oscillator mounted on the IE-789842-NS-EM1 can be used.
A crystal oscillator (X1) is already mounted on the emulation board. Its frequency is 8.38 MHz.
Figure 3-4. When Using Clock That Is Already Mounted on Emulation Board
IE-78K0S-NS or IE-78K0S-NS-A
IE-789842-NS-EM1
Mounted
oscillator
(used)
Emulation probe
Target system
Clock oscillator or
external clock (not used)
X1
Remark The clock that is supplied by the oscillator of the IE-789842-NS-EM1 (encircled in the figure) is
used.
(2) Clock that is mounted by user
The user can mount any clock supported by the set specifications on the IE-789842-NS-EM1. This feature is
effective when debugging at a different frequency than the clock already mounted.
Remove the crystal oscillator (X1) that is already mounted on the emulation board, and mount the parts board on
which the resonator to be used is mounted or mount the oscillator to be used.
Figure 3-5. When Using User-Mounted Clock
IE-78K0S-NS or IE-78K0S-NS-A
IE-789842-NS-EM1
Parts board + resonator
or
oscillator (used)
Emulation probe
Target system
Clock oscillator or
external clock (not used)
X1
Remark The clock that is supplied by the resonator of the IE-789842-NS-EM1 (encircled in the figure) or the
oscillator is used.
CHAPTER 3 INSTALLATION
User’s Manual U14545EJ2V0UM
24
(3) Pulse input from target system
An external clock on the target system can be used via an emulation probe.
Figure 3-6. When Supplying Pulse from Target System
IE-78K0S-NS or IE-78K0S-NS-A
IE-789842-NS-EM1
Emulation probe
Target system
External clock (used)
Mounted oscillator
(not used)
X1
Remark The pulse that is supplied by the external clock on the target system (encircled in the figure) or the
oscillator is used.
3.4.2 System clock settings
Table 3-4 shows the settings of the IE-789842-NS-EM1 when the system clocks in (1) to (3) are used.
Table 3-4. System Clock Settings
IE-789842-NS-EM1Frequency of System Clock
X1 Socket
CPU Clock Source
Selection (ID78K0S-NS)
(1) When using clock that is already mounted
on emulation board
8.38 MHz Oscillator
(2) When using clock mounted by user Oscillator configured by user
Internal
(3) When inputting pulse from target system
Other than 8.38 MHz
Oscillator (not used) External
Caution When inputting a pulse from the target system, open the configuration dialog box when
starting the integrated debugger (ID78K0S-NS) and select “External” in the area (Clock) for
selecting the CPU’s clock source (this selects the user’s clock).
Remark The factory settings of the IE-789842-NS-EM1 are those listed above under “when using clock that is
already mounted on emulation board”.
(1) When using clock that is already mounted on emulation board
When the IE-789842-NS-EM1 is shipped, an 8.38 MHz crystal oscillator is already mounted in the IE-789842-
NS-EM1’s X1 socket. When using the factory-set mode settings, there is no need to make any other hardware
settings.
When starting the integrated debugger (ID78K0S-NS), open the configuration dialog box and select “Internal” in
the area (Clock) for selecting the CPU’s clock source (this selects the emulator’s internal clock).
CHAPTER 3 INSTALLATION
User’s Manual U14545EJ2V0UM 25
(2) When using clock mounted by user
Perform the settings described under either (a) or (b), depending on the type of clock to be used.
When starting the integrated debugger (ID78K0S-NS), open the configuration dialog box and select “Internal” in
the area (Clock) for selecting the CPU’s clock source (this selects the emulator’s internal clock).
(a) When using a ceramic resonator or crystal resonator
•Items to be prepared
• Parts board • Capacitor CA
• Ceramic resonator or crystal resonator • Capacitor CB
• Resistor Rx • Solder kit
<Steps>
<1> Solder the target ceramic resonator or crystal resonator, resistor Rx, capacitor CA, and capacitor CB
(all with suitable oscillation frequencies) onto the parts board (as shown below).
Figure 3-7. Connections on Parts Board
Parts board (X1)
Pin No. Connection
2-13 Capacitor CA
3-12 Capacitor CB
4-11 Ceramic resonator or crystal resonator
5-10 Resistor Rx
8-9 Shorted
Circuit diagram
Remark The sections enclosed in broken lines indicate parts that are attached to the parts board.
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1 MΩ
11
4
3
12
CB CA
13
2
5
10
Rx
98CLOCK OUT
HCU04 HCU04
CHAPTER 3 INSTALLATION
User’s Manual U14545EJ2V0UM
26
<2> Prepare the IE-789842-NS-EM1.
<3> Remove the crystal oscillator that is mounted in the IE-789842-NS-EM1’s X1 socket.
<4> Connect the parts board (from <1> above) to the X1 socket from which the crystal oscillator was
removed. Check the pin 1 mark to make sure the board is mounted in the correct direction.
<5> Make sure that the parts board is wired as shown in Figure 3-7 above.
<6> Install the IE-789842-NS-EM1 in the IE-78K0S-NS or IE-78K0S-NS-A.
The above steps configure the following circuit and enable supply of the clock from the mounted resonator
to the emulation device.
(b) When using a crystal oscillator
•Items to be prepared
• Crystal oscillator (see pinouts shown in Figure 3-8)
Figure 3-8. Crystal Oscillator
<Steps>
<1> Prepare the IE-789842-NS-EM1.
<2> Remove the crystal oscillator that is mounted in the IE-789842-NS-EM1’s X1 socket.
<3> Connect a crystal oscillator to the X1 socket from which the crystal oscillator was removed (in <2>
above). Insert the pins of the crystal oscillator into the socket aligning the pins as shown in the figure
below.
V
CC
CLOCK OUTGND
NC
CHAPTER 3 INSTALLATION
User’s Manual U14545EJ2V0UM 27
Figure 3-9. Pin Alignment of Crystal Oscillator and Socket
Crystal Oscillator Pin Name Socket Pin No.
NC 1
GND 7
CLOCK OUT 8
VCC 14
<4> Install the IE-789842-NS-EM1 in the IE-78K0S-NS or IE-78K0S-NS-A.
(3) When inputting pulse from target system
Short pins 6 and 8 of the X1 socket.
When starting the integrated debugger (ID78K0S-NS), open the configuration dialog box and select “External” in
the area (Clock) for selecting the CPU’s clock source (this selects the user’s clock).
14
13
12
11
10
9
8
V
CC
CLOCK OUT
GND
NC
Crystal oscillator Socket
1
2
3
4
5
6
7
CHAPTER 3 INSTALLATION
User’s Manual U14545EJ2V0UM
28
3.5 External Trigger
To set an external trigger, connect the IE-789842-NS-EM1’s check pins EXTOUT and EXTIN as shown below.
See the IE-78K0S-NS User’s Manual (U13549E) or IE-78K0S-NS-A User’s Manual (U15207E) for pin
characteristics.
For the use methods, see the ID78K Series Ver.2.30 or Later Operation Windows Based User’s Manual
(U15185E).
(1) EXTOUT
The EXTOUT pin on the IE-789842-NS-EM1 outputs a low level for 1.3
µ
s when a break event occurs.
Caution Connect a pull-up resistor on the target system because this is an open drain output.
(2) EXTIN
An event signal can be input from the EXTIN pin on the IE-789842-NS-EM1. Input a high-level pulse signal for 2
CPU operation clocks or more.
Figure 3-10. External Trigger Input Position
EXTOUT
TM1
EXTIN
44GB
CN1
LED1
IE-789842-NS-EM1
X1
External trigger
User’s Manual U14545EJ2V0UM 29
CHAPTER 4 DIFFERENCES BETWEEN TARGET DEVICE AND TARGET INTERFACE CIRCUIT
This chapter describes differences between the target device’s signal lines and the signal lines of the target
interface circuit of the IE system.
The target interface circuit of the IE system realizes emulation via an emulation circuit configured by an emulation
CPU, TTL, CMOS-IC, and other components. The electrical characteristics are different from those of the target
device because a protector and other circuits are provided.
(1) Signals input to or output from the emulation CPU
(2) Signals input from the target system via a gate
(3) Analog signals
(4) Other signals
The IE-789842-NS-EM1’s circuit is used as follows for signals listed in (1) to (4) above.
(1) Signals input to or output from the emulation CPU
The following signals perform the same operations as in the
µ
PD789841, 789842, and 78F9842. However, a 1
MΩ pull-down resistor and 100 Ω resistor are inserted in series.
•Signals related to port 0
•Signals related to port 1
•Signals related to port 2
•Signals related to 10-bit inverter control timer (TO70 to TO75)
(2) Signals input from the target system via a gate
Since the following signals are input via a gate, their timing shows a delay compared to the
µ
PD789841, 789842,
and 78F9842. Their AC characteristics and DC characteristics are therefore different from the
µ
PD789841,
789842, and 78F9842 making it necessary to observe a stricter timing design than in the
µ
PD789841, 789842,
and 78F9842.
•RESET signal
•Signals related to clock input
From all the signals input from the target system, the RESET signal and signals related to clock input are input to
the emulation CPU via a logic IC. The DC characteristics are therefore different from the
µ
PD789841, 789842,
and 78F9842.
CHAPTER 4 DIFFERENCES BETWEEN TARGET DEVICE AND TARGET INTERFACE CIRCUIT
User’s Manual U14545EJ2V0UM
30
(3) Analog signals
Because the following signals input/output analog signals, special processing is not performed in the IE-789842-
NS-EM1.
•AVDD pin
•Port 6
(4) Other signals
•VDD pin
When the emulation CPU is operating at 5 V, its power is supplied from the IE-789842-NS-EM1, but when
operating at low voltage, its power is supplied from the low-voltage pin (TP1). The VDD pin of the target system
is only used to control the LED (TVCC) in the IE-789842-NS-EM1 that monitors the input of the target system's
power supply.
•VSS and AVSS pins
The VSS and AVSS pins are connected to GND in the IE-789842-NS-EM1
•TEST/VPP pin
The TEST/VPP pin is not used in the IE-789842-NS-EM1.
•X2 pin
The X2 pin is not used in the IE-789842-NS-EM1.
CHAPTER 4 DIFFERENCES BETWEEN TARGET DEVICE AND TARGET INTERFACE CIRCUIT
User’s Manual U14545EJ2V0UM 31
Figure 4-1. Equivalent Circuit of Emulation Circuit
Port 0
Port 1
Port 2
TO70 to TO75
Port 0
Port 1
Port 2
TO70 to TO75
RESET
X1
AV
DD
Port 6
AV
DD
Port 6
X1
RESET
100 Ω
4.7 kΩ
LV
CC
LV
CC
HC4066
HC157
PD789009
X1
HSK120
HSK120
Power supply detection
G6H-2F (Relay)
Filter 100 Ω
1 MΩ
PC393
TEST/V
PP
TEST/V
PP
X2
V
SS
AV
SS
V
DD
OPEN
OPEN
LV
CC
+
22 F
IE-789842-NS-EM1 sideProbe side
µ
µ
µ
PD789009
µ
+
–
User’s Manual U14545EJ2V0UM00
32
CHAPTER 5 CAUTIONS
This chapter describes points that require special attention when using the IE-789842-NS-EM1.
The target device and the emulation function of the IE-789842-NS-EM1 differ with regard to the following.
(1) Emulation of an RC oscillator is not possible with the IE-789842-NS-EM1.
Only those functions specified by the clock settings in 3.4 Clock Settings can be emulated.
(2) Pin handling is not performed for the port pins on the emulation board. Consequently, an undefined value will
be read out if an attempt is made to read the value of a port in input mode when an emulation probe is not
connected.
(3) Emulation of the low voltage circuit (LVI) is possible with the IE-789842-NS-EM1.
Note, however, that the operation-guaranteed voltage is the same as that of the target device (4.0 to 5.5 V);
that is, operation is not guaranteed if a voltage lower than this is applied.
User’s Manual U14545EJ2V0UM 33
APPENDIX A EMULATION PROBE PIN ASSIGNMENT TABLE
Table A-1. NP-44GB, NP-44GB-TQ, NP-H44GB-TQ Pin Assignments
Emulation Probe CN1 Pin No. Emulation Probe CN1 Pin No.
1 104 23 18
2 103 24 17
3 100 25 22
4992621
5942728
6932827
7302992
8293091
9243198
10 23 32 97
11 20 33 102
12 47 34 73
13 48 35 72
14 51 36 69
15 52 37 70
16 57 38 63
17 58 39 64
18 59 40 61
19 60 41 62
20 55 42 65
21 56 43 66
22 49 44 71
Remarks 1. NP-44GB, NP-44GB-TQ, and NP-H44GB-TQ are products of Naito Densei Machida Mfg. Co., Ltd.
2. The numbers in the “Emulation probe” column indicate the corresponding pin number on the
emulation probe tip.
User’s Manual U14545EJ2V0UM
34
APPENDIX B NOTES ON DESIGNING TARGET SYSTEM
The following shows the conditions when connecting the emulation probe and converstion adapter. Consider the
shape of the components to be mounted on the target system and follow the configurations below when designing
the system.
Among the products described in this appendix, NP-44GB-TQ and NP-H44GB-TQ are products of Naito Densei
Machida Mfg. Co., Ltd. and TGB-044SAP is a product of TOKYO ELETECH CORPORATION.
Table B-1. Distance Between IE System and Conversion Adapter
Emulation Probe Conversion Adapter Distance Between IE System and Conversion Adapter
NP-44GB-TQ 170 mm
NP-H44GB-TQ
TGB-044SAP
370 mm
Figure B-1. Distance Between IE System and Conversion Adapter
170 mm
Note
In-circuit emulator
IE-78K0S-NS or IE-78K0S-NS-A
Emulation board
IE-789842-NS-EM1
Conversion adapter: TGB-044SAP
Target system
Emulation probe
NP-44GB-TQ
NP-H44GB-TQ
Note The above distance shows when the NP-44GB-TQ is used. When the NP-H44GB-TQ is used, the
distance is 370 mm.
APPENDIX B NOTES ON DESIGNING TARGET SYSTEM
User’s Manual U14545EJ2V0UM 35
Figure B-2. Connection Conditions of Target System (NP-44GB-TQ)
Emulation probe
NP-44GB-TQ
24.8 mm
25 mm
40 mm 34 mm
Target system
Conversion adapter
TGB-044SAP
16.65 mm Pin 1
10.95 mm
Emulation board
IE-789842-NS-EM1
16.65 mm
Figure B-3. Connection Conditions of Target System (NP-H44GB-TQ)
Emulation probe
NP-H44GB-TQ
Emulation board
IE-789842-NS-EM1
23 mm
42 mm 45 mm
Target system
10.95 mm
Conversion adapter
TGB-044SAP
10 mm 16.65 mm Pin 1 16.65 mm
