User’s Manual
Target device
µ
µµ
µ
PD784038 Subseries
µ
µµ
µ
PD784038Y Subseries
IE-784038-NS-EM1
Emulation Board
Document No. U13760EJ1V0UM00 (1st edition)
Date Published May 1999 N CP(K)
Printed in Japan
1999©
User’s Manual U13760EJ1V0UM00
2
[MEMO]
User’s Manual U13760EJ1V0UM00 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.
The information in this document is subject to change without notice.
No part of this document may be copied or reproduced in any form or by any means without the prior written
consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in
this document.
NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual
property rights of third parties by or arising from use of a device described herein or any other liability arising
from use of such device. No license, either express, implied or otherwise, is granted under any patents,
copyrights or other intellectual property rights of NEC Corporation or of others.
M7A 96. 10
User’s Manual U13760EJ1V0UM00
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
representatives and distributors. They will verify:
•
Device availability
•
Ordering information
•
Product release schedule
•
Availability of related technical literature
•
Development environment specifications (for example, specifications for third-party tools and
components, host computers, power plugs, AC supply voltages, and so forth)
•
Network requirements
In addition, trademarks, registered trademarks, export restrictions, and other legal issues may also vary
from country to country.
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Santa Clara, California
Tel: 408-588-6000
800-366-9782
Fax: 408-588-6130
800-729-9288
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Tel: 0211-65 03 02
Fax: 0211-65 03 490
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Tel: 02-66 75 41
Fax: 02-66 75 42 99
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Tel: 91-504-2787
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Electron Devices Division
Rodovia Presidente Dutra, Km 214
07210-902-Guarulhos-SP Brasil
Tel: 55-11-6465-6810
Fax: 55-11-6465-6829
J99.1
User’s Manual U13760EJ1V0UM00 5
INTRODUCTION
Product Overview The IE-784038-NS-EM1 is designed to be used with the IE-78K4-NS to debug the
following target devices that belong to the 78K/IV Series of 16-bit single-chip
microcontrollers.
•
µ
PD784038 Subseries:
µ
PD784031, 784035, 784036, 784037, 784038, 78P4038
•
µ
PD784038Y Subseries:
µ
PD784031Y, 784035Y, 784036Y, 784037Y, 784038Y,
78P4038Y
Target Readers This manual is intended for engineers who will use the IE-784038-NS-EM1 with the IE-
78K4-NS 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-784038-NS-EM1, refer to not only this manual (supplied with the IE-
784038-NS-EM1) but also the manual that is supplied with the IE-78K4-NS.
IE-78K4-NS IE-784038-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
Purpose This manual’s purpose is to explain various debugging functions that can be performed
when using the IE-784038-NS-EM1.
User’s Manual U13760EJ1V0UM00
6
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 devi ce. It i ncludes t he em ul ation CPU.
Emulat i on CP U This is the CPU block in the emulator that is used to execute user-generated programs.
Target device This is the device (a real chip) that is the target f or em ul ation.
Target system The device that is targeted for debugging.
This inc l udes the target program and the hardware provided by the user. When def i ned
narrowly, i t i ncludes only the hardware.
IE system This refers to the combination of the IE-78K4-NS and the IE-784038-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 Num berDocument Nam e
English Japanese
IE-78K4-NS U13356E U13356J
IE-784038-NS-E M1 This manual U13760J
ID78K4-NS I ntegrated Debugger Referenc e Wi ndows™ Based U12796E U12796J
µ
PD784038, 784038Y, Subseries Hardware U11316E U11316J
Caution The documents listed above are subject to change without notice. Be sure to use the latest
documents when designing.
User’s Manual U13760EJ1V0UM00 7
CONTENTS
CHAPTER 1 GENERAL..............................................................................................................................11
1.1 System Configuration ............................................................................................................................... 12
1.2 Hardware Configuration............................................................................................................................ 14
1.3 Basic Specifications.................................................................................................................................. 15
CHAPTER 2 PART NAMES........................................................................................................................17
2.1 Parts of Main Unit...................................................................................................................................... 18
CHAPTER 3 INSTALLATION.....................................................................................................................19
3.1 Connection................................................................................................................................................. 20
3.2 Clock Settings............................................................................................................................................ 21
3.2.1 Overview of clock settings............................................................................................................. 21
3.2.2 Main system clock settings............................................................................................................ 23
3.3 Pin Mask Function Settings...................................................................................................................... 28
3.3.1 Wait (WAIT)/hold (HOLD) mask function....................................................................................... 28
3.3.2 Wait/hold display function..............................................................................................................28
3.3.3 NMI interrupt mask function........................................................................................................... 28
3.4 Low-Voltage Emulation Setting................................................................................................................ 29
3.5 External Trigger............................................................................................................ ............................. 30
CHAPTER 4
DIFFERENCE S BE TWE E N TARG E T DE V ICES AND TARG E T INTERFACE CI RCUITS
......31
APPENDIX A EMULATION PROBE PIN ASSIGNMENT TABLE..............................................................35
User’s Manual U13760EJ1V0UM00
8
LIST OF FIGURES
Figure No. Title Page
1-1. System Configuration .............................................................................................................................. 12
1-2. Basic Hardware Configuration .................................................................................................................. 14
2-1. IE-784038-NS-EM1 Part Names............................................................................................................... 18
3-1. Connection of Emulation Probe ................................................................................................................ 20
3-2. External Circuits Used as System Clock Oscillator ..................................................................................... 21
3-3. When Using Clock That Is Already Mounted on Emulation Board ................................................................ 22
3-4. When Using User-Mounted Clock............................................................................................................. 22
3-5. When Using an External Clock ................................................................................................................. 23
3-6. Connections on Parts Board (When Using Main System Clock or User-Mounted Clock)................................24
3-7. Crystal Oscillator (When Using Main System Clock or User-Mounted Clock) ................................................26
3-8. Pin Alignment of Crystal Oscillator and Socket........................................................................................... 26
3-9. External Trigger Input Position.................................................................................................................. 30
4-1. Equivalent Circuit 1 of Emulation Circuit.................................................................................................... 32
4-2. Equivalent Circuit 2 of Emulation Circuit.................................................................................................... 33
User’s Manual U13760EJ1V0UM00 9
LIST OF TABLES
Table No. Title Page
1-1. Basic Specifications .................................................................................................................................15
3-1. Main System Clock Settings......................................................................................................................23
3-2. DIP Switch Setting for Wait (WAIT)/Hold (HOLD) Mask Function..................................................................28
3-3. DIP Switch Setting for Wait/Hold Display Function ......................................................................................28
3-4. DIP Switch Setting for NMI Interrupt Mask Function ....................................................................................28
A-1. NP-80GC/GK Pin Assignments.................................................................................................................35
User’s Manual U13760EJ1V0UM00
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User’s Manual U13760EJ1V0UM00 11
CHAPTER 1 GENERAL
The IE-784038-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/IV Series of 16-bit single-chip microcontrollers.
This chapter describes the IE-784038-NS-EM1’s system configuration and basic specifications.
•Target device
•
µ
PD784038 Subseries
•
µ
PD784038Y Subseries
CHAPTER 1 GE NERAL
User’s Manual U13760EJ1V0UM00
12
1.1 System Configuration
Figure 1-1 illustrates the IE-784038-NS-EM1’s system configuration.
Figure 1-1. System Configuration
FG Cable
IE-78K4-NS
(sold separately)
NS CARD
Cable MC CARD
Cable
IE-70000-CD-IF
(sold separately)
Debugger
ID78K4-NS
(sold separately)
Device file
Note 1
(sold separately)
Control software
Host machine
PC-9800 Series
or IBM PC/AT™
or compatibles
Interface board
IE-70000-98-IF-C
(sold separately)
Interface board
IE-70000-PC-IF-C
(sold separately)
Interface card
Interface
cable
Interface cable
(NS IF Cable)
In-circuit emulator
IE-784038-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)
or
CHAPTER 1 GE NERAL
User’s Manual U13760EJ1V0UM00 13
Notes 1. The device file is as follows, in accordance with the subseries.
µ
S××××DF784038:
µ
PD784038, 784038Y Subseries
2. The emulation probe is as follows, in accordance with the package.
NP-80GC: 80-pin plastic QFP (GC type)
NP-80GK: 80-pin plastic TQFP (GK type)
The NP-80GC/GK are products of Naito Densei Machida Mfg. Co., Ltd.
For further information, contact Naito Densei Machida Mfg. Co., Ltd. (TEL: +81-44-822-3813)
3. The conversion socket/conversion adapter are as follows, in accordance with the package.
EV-9200GC-80: 80-pin plastic QFP (GC type)
TGK-080SDW: 80-pin plastic TQFP (GK type)
The TGK-080SDW is a product of TOKYO ELETECH CORPORATION.
For further information, contact to Daimaru Kogyo Co., Ltd.
Tokyo Electronics Department (TEL: +81-3-3820-7112)
Osaka Electronics Department (TEL: +81-6-6244-6672)
CHAPTER 1 GE NERAL
User’s Manual U13760EJ1V0UM00
14
1.2 Hardware Configuration
Figure 1-2 shows the IE-784038-NS-EM1’s position in the basic hardware configuration.
Figure 1-2. Basic Hardware Configuration
IE-78K4-NS (sold separately) IE-784038-NS-EM1
Emulation probe
(sold separately)
Dedicated bus interface IE system
Host machine Interface board
(sold separately) 78K4 main board
(G-78K4 MAIN Board)
78K4 emulation board
(G-78K4 EM Board)
Emulation board
(This product)
Interface card
(sold separately)
CHAPTER 1 GE NERAL
User’s Manual U13760EJ1V0UM00 15
1.3 Basic Specifications
The IE-784038-NS-EM1’s basic specifications are listed in Table 1-1.
Table 1-1. Basic Specifications
Parameter Description
Target device
µ
PD784038, 784038Y S ubseries
System clock 16.0 MHz
Main system clock supply External : Input vi a an emulation probe f rom the target system
Internal: Mounted on emulation board (32 MHz), or m ounted on the board by t he user
Low-voltage support 2 V or higher (sam e as target dev i ce)
User’s Manual U13760EJ1V0UM00
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User’s Manual U13760EJ1V0UM00 17
CHAPTER 2 PART NAMES
This chapter introduces the parts of the IE-784038-NS-EM1 main unit.
The packing box contains the emulation board (IE-784038-NS-EM1).
If there are any missing or damaged items, please contact an NEC sales representative.
Fill out and return the guarantee document that comes with the main unit.
CHAPTER 2 PART NAME S
User’s Manual U13760EJ1V0UM00
18
2.1 Parts of Main Unit
Figure 2-1. IE-784038-NS-EM1 Part Names
X2 PD784038CLK
SW1 DIP switch
OFF
HOLD LED2
USERVDD LED1
Probe connector
CN1 80GC/GK
GND TP1
Low Volt
EXTIN (CP3)
EXTOUT (CP4)
WAIT LED3
TP1 CP3 CP4
IE-784038-NS-EM1
CN1
µ
User’s Manual U13760EJ1V0UM00 19
CHAPTER 3 INSTALLATION
This chapter describes methods for connecting the IE-784038-NS-EM1 to the IE-78K4-NS, 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 I NSTALLATION
User’s Manual U13760EJ1V0UM00
20
3.1 Connection
(1) Connection with IE-78K4-NS main unit
See the IE-78K4-NS User’s Manual (U13356E) for a description of how to connect the IE-784038-NS-EM1 to the
IE-78K4-NS.
(2) Connection with emulation probe
See the IE-78K4-NS User’s Manual (U13356E) for a description of how to connect an emulation probe to the IE-
784038-NS-EM1.
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.
Figure 3-1. Connection of Emulation Probe
,
,
,
,
,
I/O emulation board (IE-784038-NS-EM1)
Main board
(G-78K4 MAIN board)
Emulation board (G-78K4 EM board) Emulation probe
(sold separately)
CN1 80GC/GK
CHAPTER 3 I NSTALLATION
User’s Manual U13760EJ1V0UM00 21
3.2 Clock Settings
3.2.1 Overview of clock settings
The main 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) External clock
If the target system includes an internal clock, select either “(1) Clock that is already mounted on emulation board”
or “(2) Clock that is mounted by user”. For an internal clock, 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 resonator that is mounted on the target system is not used. Instead, it uses the clock that is mounted
on the emulation board, which is installed for the IE-78K4-NS.
If the target system includes an external clock, select “(3) External clock”.
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.
Figure 3-2. External Circuits Used as System Clock Oscillator
(a) Internal clock (b) External clock
X2 X2
Target device Target device
External
clock
X1 X1
CHAPTER 3 I NSTALLATION
User’s Manual U13760EJ1V0UM00
22
(1) Clock that is already mounted on emulation board
A crystal oscillator is already mounted on the emulation board. Its frequency is 32 MHz.
Figure 3-3. When Using Clock That Is Already Mounted on Emulation Board
IE-78K4-NS
IE-784038-NS-EM1
Resonator
(not used)
Mounted
oscillator
(to be used)
Emulation probe
Target system
Remark The clock that is supplied by the IE-784038-NS-EM1’s oscillator (encircled in the figure) is used.
(2) Clock that is mounted by user
The user is able to mount any clock supported by the set specifications on the IE-784038-NS-EM1. First mount
the resonator on the parts board, then attach the parts board to the IE-784038-NS-EM1. This method is useful
when using a different frequency from that of the pre-mounted clock.
Figure 3-4. When Using User-Mounted Clock
IE-78K4-NS
IE-784038-NS-EM1
Resonator
(not used)
Target system
Parts
board Emulation probe
Resonator
(to be used)
Remark The clock that is supplied by the IE-784038-NS-EM1’s resonator (encircled in the figure) is used.
CHAPTER 3 I NSTALLATION
User’s Manual U13760EJ1V0UM00 23
(3) External clock
An external clock connected to the target system can be used via an emulation probe.
Figure 3-5. When Using an External Clock
IE-78K4-NS
IE-784038-NS-EM1
Clock generator
(to be used)
Emulation probe
Target system
Remark The clock supplied by the target system’s clock generator (encircled in the figure) is used.
3.2.2 Main system clock settings
Table 3-1. Main System Clock Settings
IE-784038-NS-EM1Frequency of M ai n S ystem Cl ock
Parts Board (X2)
CPU Clock Source
Selection (ID)
When using cl ock that i s
already mount ed on
emulation board
32 MHz Oscillator used
When using cl ock mount ed
by user Oscillator assembled by user
Internal
When using external cloc k
Other than 32 MHz
Oscillator not used External
Caution When using an external clock, open the configuration dialog box when starting the integrated
debugger (ID78K4-NS) and select “External” in the area (Clock) for selecting the CPU’s clock
source (this selects the user’s clock).
Remark The IE-784038-NS-EM1’s factory settings 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-784038-NS-EM1 is shipped, a 32-MHz crystal oscillator is already mounted in the IE-784038-NS-
EM1’s X2 socket. When using the factory-set mode settings, there is no need to make any other hardware
settings.
When starting the integrated debugger (ID78K4-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 I NSTALLATION
User’s Manual U13760EJ1V0UM00
24
(2) When using clock mounted by user
The settings described under either (a) or (b) are required, depending on the type of clock to be used.
When starting the integrated debugger (ID78K4-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 (supplied with IE-78K4-NS) • 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 frequency) onto the supplied parts board (as shown below).
Figure 3-6. Connections on Parts Board (When Using Main System Clock or User-Mounted Clock)
Parts board (X2)
Pin No. Connection
2-13 Capacitor CB
3-12 Capacitor CA
4-11 Ceramic res onator or crys tal resonator
5-10 Resistor Rx
8-9 Short
Circuit diagram
1 MΩ
11
4
3
12
CA CB
13
2
5
10
Rx
98CLOCK OUT
HCU04 HCU04
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
CHAPTER 3 I NSTALLATION
User’s Manual U13760EJ1V0UM00 25
<2> Prepare the IE-784038-NS-EM1.
<3> Remove the crystal oscillator that is mounted in the IE-784038-NS-EM1’s socket (the socket
marked as X2).
<4> Connect the parts board (from <1> above) to the socket (X2) 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 mounted in the X2 socket on the emulation board is wired as shown
in Figure 3-6 above.
<6> Install the IE-784038-NS-EM1 in the IE-78K4-NS.
The above steps configure the following circuit and enable supply of the clock from the mounted resonator to the
emulation device.
1 MΩ
11
4
3
12
CA CB
13
2
5
10
Rx
98
6
HCU04HCU04
XALS157
AY
B
HKS120
AC125
CLK IN
VCC
VCC
X1
IE-78K4-NS side
(Emulation device)
VHC244
4.7 kΩ
Remark The sections enclosed in broken lines indicate parts that are attached to the parts board.
CHAPTER 3 I NSTALLATION
User’s Manual U13760EJ1V0UM00
26
(b) When using a crystal oscillator
• Items to be prepared
• Crystal oscillator (see pinouts shown in Figure 3-7)
Figure 3-7. Crystal Oscillator (When Using Main System Clock or User-Mounted Clock)
V
CC
CLOCK OUTGND
NC
<Steps>
<1> Prepare the IE-784038-NS-EM1.
<2> Remove the crystal oscillator that is mounted in the IE-784038-NS-EM1’s socket (the socket
marked as X2).
<3> Connect the crystal oscillator (from <2> above) to the socket (X2) from which the crystal oscillator
was removed. Insert the crystal oscillator pin into the socket aligning the pins as shown in the
figure below.
Figure 3-8. 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-784038-NS-EM1 in the IE-78K4-NS.
14
13
12
11
10
9
8
V
CC
CLOCK OUT
GND
NC 1
2
3
4
5
6
7
Crystal oscillator Socket
CHAPTER 3 I NSTALLATION
User’s Manual U13760EJ1V0UM00 27
The above steps configure the following circuit and enable supply of the clock from the mounted
resonator to the emulation device.
ALS157
AY
B
CLK IN
IE-78K4-NS side
(Emulation device)
V
CC
Crystal
oscillator
HSK120
AC125
V
CC
V
CC
X1
VHC244
4.7 kΩ
(3) When using external clock
No hardware settings are required for this situation.
When starting the integrated debugger (ID78K4-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).
CHAPTER 3 I NSTALLATION
User’s Manual U13760EJ1V0UM00
28
3.3 Pin Mask Function Settings
3.3.1 Wait (WAIT)/hold (HOLD) mask function
By setting the DIP switch (SW1) in the IE-784038-NS-EM1, it is possible to mask the alternate function (WAIT)
and (HOLD) of pin P66 in the
µ
PD784038 Subseries.
Table 3-2. DIP Switch Setting for Wait (WAIT)/Hold (HOLD) Mask Function
DIP Switch SettingStatus
2 (WAITMS K) 3 (HOLDMSK) 4 (P66ON)
No mask (initial setting) OFF OFF ON
Hold masked OFF ON OFF
Wait mask ed ON OFF OFF
Caution Do not set the DIP switch to settings other than those above.
3.3.2 Wait/hold display function
By setting the DIP switch (SW1) in the IE-784038-NS-EM1, it is possible to display the status of "waiting" and
“holding” with an LED light.
Table 3-3. DIP Switch Setting for Wait/Hold Display Function
DIP Switch SettingStatus
5 (HOLDLED) 6 (WAITLED)
Hold (HOLD) stat us displayed,
wait (WAI T) status not displayed
(initial setting)
ON OFF
Hold stat us not dis pl ayed,
wait (WAI T) status di splayed OFF ON
Caution When pin P66 is used as a port pin, unless the DIP switch (SW 1 to 5, 6) is turned OFF the
LED may light up.
3.3.3 NMI interrupt mask function
By setting switch 1 of the DIP switch (SW1) in the IE-784038-NS-EM1, it is possible to mask the NMI interrupt,
which is the alternate function of the P20 pin.
Table 3-4. DIP Switch Setting for NMI Interrupt Mask Function
DIP Switch SettingStatus
1 (NMIMSK)
No NMI mask (initial setting) ON
NMI masked OFF
Caution Because the NMI interrupt is the alternate function of the P20 pin, this pin cannot operate as
the P20 pin when the NMI mask status has been set.
CHAPTER 3 I NSTALLATION
User’s Manual U13760EJ1V0UM00 29
3.4 Low-Voltage Emulation Setting
Low-voltage emulation is possible in the IE system.
When the target system is operating on low voltage, supply the same voltage as the target system to the TP1
terminal pin of the IE-784038-NS-EM1. Set the target voltage between 3 and 5 V.
• Maximum current consumption of TP1
5 V 300 mA
..
..
..
3 V 150 mA
CHAPTER 3 I NSTALLATION
User’s Manual U13760EJ1V0UM00
30
3.5 External Trigger
To set up an external trigger, connect it to the IE-784038-NS-EM1’s check pin, EXTOUT pin, and EXTIN pin as
shown below.
See the integrated debugger (ID-78K4-NS) User’s Manual (U12796E) for descriptions of related use methods.
Figure 3-9. External Trigger Input Position
OFF
EXTIN
EXTOUT
TP1
IC13
CN1 80GC/GK
SW1 DIP switch X2 PD784038CLK
µ
User’s Manual U13760EJ1V0UM00 31
CHAPTER 4 DIFFERENCES BETWEEN TARGET DEVICES AND TARGET INTERFACE CIRCUITS
This chapter describes differences between the target device’s signal lines and the signal lines of the IE-784038-
NS-EM1’s target interface circuit.
Although the target device is a CMOS circuit, the IE-784038-NS-EM1’s target interface circuit consists of an
emulation CPU, TTL, CMOS-IC, and other emulation circuits.
When the IE system is connected with the target system for debugging, the IE system performs emulation so as to
operate as the actual target device would operate in the target system.
However, some minor differences exist since the operations are performed via the IE system’s emulation.
(1) Signals directly input/output to/from the emulation CPU
(2) Signals input from the target system via a gate
(3) Other signals
The IE system’s circuit is used as follows for signals listed in (1) to (3) above.
(1) Signals directly input/output to/from the emulation CPU
The following signals perform the same operations as in the
µ
PD784038 Subseries. For the signals related to
ports excluding port 7 (having alternate functions as pins for A/D converter), however, a 1-MΩ pull-down resistor
and 22-Ω resistor are inserted in series.
•Signals related to port 0
•Signals related to port 1
•Signals related to port 2
•Signals related to port 3
•Signals related to port 4
•Signals related to port 5
•Signals related to port 6
•Signals related to port 7 (A/D converter input)
•ASTB signal
•Signals related to A/D converter
•AVREF1 to AVREF3
•AVDD
•AVSS
•Signals related to D/A converter
•ANO0
•ANO1
Caution The AVDD pin on the target system is not connected to the IE system. Either the power supply of
the IE system or the power supply supplied to TP1 is supplied to the AVDD pin of the emulation
CPU.
CHAPTER 4 DIFFERENCES BETWEE N T ARGET DEV ICES AND T ARGET INTERFACE CI RCUITS
User’s Manual U13760EJ1V0UM00
32
Figure 4-1. Equivalent Circuit 1 of Emulation Circuit
P00 to P07 P00 to P07
22 Ω
1 MΩ
IE system sideProbe side
P10 to P17 P10 to P17
22 Ω
1 MΩ
P20
P21 to P27
P30 to P37
P40 to P47
P50 to P57
P60 to P67
P70 to P77
P20
P21 to P27
P30 to P37
P40 to P47
P50 to P57
P60 to P67
P70 to P77
22 Ω
1 MΩ
22 Ω
1 MΩ
22 Ω
1 MΩ
22 Ω
1 MΩ
22 Ω
1 MΩ
22 Ω
1 MΩ
ASTB ASTB
AV
REF1
to AV
REF3
AV
REF1
to AV
REF3
22 Ω
AV
DD
AV
DD
Leave open
AC125
V
CC
ANO0, ANO1 ANO0, ANO1
AV
SS
AV
SS
LV
CC
CHAPTER 4 DIFFERENCES BETWEE N T ARGET DEV ICES AND T ARGET INTERFACE CI RCUITS
User’s Manual U13760EJ1V0UM00 33
(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 that of the
µ
PD784038
Subseries. Their AC characteristics and DC characteristics are therefore different from
µ
PD784038 Subseries,
making it necessary to observe a stricter timing design than in the case of
µ
PD784038 Subseries.
• RESET signal
• Signals related to clock input
Figure 4-2. Equivalent Circuit 2 of Emulation Circuit
IE system sideProbe side
VHC244
AS04 AS04
VHC244
AC125
VHC244
LV
CC
ALTERA
EPM7128-15
100 kΩ
22 Ω
RESET
X1
X2 Leave open
V
CC
RESET
CLK IN
IE-784038-NS-EM1
X2
mounted clock
Target probe
X1 pin D
HSK120
V
CC
ALS157
4.7 kΩ
(3) Other signals
• VDD pin
When the emulation CPU is operating at 5 V, its power is supplied from the internal IE system, 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 (USERVDD) in the IE system that monitors the input of the target system's power
supply.
• VSS pin
The VSS pin is connected to GND inside the IE system.
• TEST pin
The TEST pin is not used in the IE system.
User’s Manual U13760EJ1V0UM00
34
[MEMO]
User’s Manual U13760EJ1V0UM00 35
APPENDIX A EMULATION PROBE PIN ASSIGNMENT TABLE
Table A-1. NP-80GC/GK Pin Assignments (1/2)
Emulat i on P robe CN1 Pin No. Em ul ation Probe CN1 Pin No.
1 114 34 49
2 113 35 50
3 108 36 45
4 107 37 46
5 104 38 41
6 103 39 42
7 100 40 35
899418
994427
10 93 43 14
11 30 44 13
12 29 45 18
13 24 46 17
14 23 47 22
15 20 48 21
16 19 49 28
17 16 50 27
18 15 51 92
19 10 52 91
20 9 53 98
21 37 54 97
22 43 55 102
23 44 56 101
24 47 57 106
25 48 58 105
26 51 59 112
27 52 60 111
28 57 61 83
29 58 62 77
30 59 63 78
31 60 64 73
32 55 65 74
33 56 66 69
Remarks 1. The NP-80GC/GK 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.
APPE NDIX A EM UL AT ION PROBE PIN ASS IGNMENT T ABL E
User’s Manual U13760EJ1V0UM00
36
Table A-1. NP-80GC/GK Pin Assignments (2/2)
Emulat i on P robe CN1 Pin No. Em ul ation Probe CN1 Pin No.
67 70 74 71
68 63 75 72
69 64 76 75
70 61 77 76
71 62 78 79
72 65 79 80
73 66 80 85
Remarks 1. The NP-80GC/GK 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 U13760EJ1V0UM00 37
[MEMO]
User’s Manual U13760EJ1V0UM00
38
[MEMO]
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