NEC V850/SV1 User's Manual
Contents
1. Hold the last accessed address Active Active Hi Z Active Active Active Active Active Active H Active Active Active H Active Active Invalid Maskable Maskable Maskable Maskable Maskable Hor L H or L Hor L Note Active Remarks 1 F Fetch R Read W Write 2 H High level output L Low level output Hi Z High impedance 30 User s Manual U14337EJ1VOUMOO APPENDIX PACKAGE DRAWINGS IE 703002 MC IE 703040 MC EM1 Unit mm Top view Pin 1 direction a Side view 1E 703002 MC 1E 703040 MC EM1 Bottom view User s Manual U14337EJ1VOUMOO 31 MEMO 32 User s Manual U14337EJ1VOUMOO MEMO User s Manual U14337EJ1VOUMOO 33 MEMO 34 User s Manual U14337EJ1VOUMOO NEC Although NEC has taken all possible steps essage toensurethatthe documentation supplied to our customers is complete bug free From and up to date we readily accept that errors may occur Despite all the care and precautions we ve taken you may Name encounter problems in the documentation Please complete this form whenever Company you d like to report errors or suggest improvements to us Tel FAX Address Thank you for your kind support North America Hong Kong Philippines Oceania Asian Nations except Philippines NEC Electronics Inc NEC Electronics Hong Kong Ltd N2. Target system The system user built system that is targeted for debugging This includes the target program and user configured hardware User s Manual U14337EJ1VOUMOO 5 Related Documents When using this manual refer to the following manuals The related documents indicated in this publication may include preliminary versions However preliminary versions are not marked as such O Documents related to development tools user s manuals Document Name Document Number CA830 CA850 C Compiler package U13998E ID850 Ver 1 31 Integrated debugger 1D850 Ver 2 00 or more Operation Windows based U14217E Integrated debugger SM850 Ver 2 00 or more Operation Windows based U13759E System simulator RX850 Pro Real time OS U13773E RD850 Task debugger U11158E RD850 Ver 3 0 Task debugger U13737E RD850 Pro Ver 3 0 Task debugger U13916E AZ850 System performance analyzer U11181E Note For ID850 Ver 1 31 only 6 User s Manual U14337EJ1VOUMOO CONTENTS CHAPTER 1 OVERVIEW gue ebe 11 1 1 Hardware Configurations c cic cocci ccs iaa 11 1 2 Features When Connected to IE 703002 MC nanne enneenenenenneennnenenneennnenenneennnenenneennnenennnnense 12 1 3 Function Specifications When Connected to 1E 703002 MC annen eneneneennnnenennneenennen 12 1 4 System Configuration EE 13 1 5 Contents i Carton civic a ANa Kaaa aiana Aaina 14 1 6 Connection between IE 703002 MC and IE 703040 MC EM1 ne 16
3. CHAPTER 2 NAMES AND FUNCTIONS OF COMPONENTS naren enenneenenenenenenenneer 19 2 1 Component Names and Functions of IE 703040 MC EM1 nn 19 PA N E o e E 21 2 2 1 Main system clock Setting siirettiin eap toea a i 21 2 22 Subsystem clock Setting ates act kates awh adi td 22 2 3 Illegal Access Detection ROM Settings 23 2 4 CPU Operation Voltage Range Switching Settings 23 CHAPTER 3 FACTORY SETTINGS EE EENS 25 CHAPTER 4 CAUTIONS nrinn aae aE aae aana aaa aa venae eee vaneen 27 41 Von and BVop of Target SyStemm ninae enoar einean pai 27 ET EE 28 E E ee LTE 28 4 4 NMI Signal Mask FUNCION ooo a geed 29 4 5 Bus Interface PAN cienia aaaea anaa SAR EAS dd cda india 29 APPENDIX PACKAGE DRAWINGS nnen eenen enenneenennnneenensnnnenensnneenenansnenenanncenenansnenennenneeeen 31 User s Manual U14337EJ1VOUMOO 7 LIST OF FIGURES Figure No Title Page 151 System Configurations iii cido dad a 13 12 Contents in Cao A ale 14 E Nee 15 1 4 Connection between IE 703002 MC and IE 703040 MC EM1 nn eneneenenenneeeeneeeneeeenenennerennee ereen 17 CN WE E e GE 19 4 1 Schematic Diagram of Power Supply Acquisition is 27 4 2 NMI Signal EloW Pathe sneren teniet aaa aaa 28 SC Ee EIS UE EE 28 8 User s Manual U14337EJ1VOUMOO LIST OF TABLES Table No Title Page 2 1 Main System Clock Setting AEN 21 2 2 Subsystem Glock Setting zittne ii ia 22 2 3 JP1 Setting Bio Hl Cd ELE 23 2 4 JPZ and JRP4 Setti g in IE 703002 MO visi n svenn nez rd lenend
4. User s Manual U14337EJ1VOUMOO 18 CHAPTER 2 NAMES AND FUNCTIONS OF COMPONENTS This chapter describes the names functions and switch settings of components in the IE 703040 MC EM1 For the details of the pod jumper and switch positions etc refer to the IE 703002 MC User s Manual U11595E 2 1 Component Names and Functions of IE 703040 MC EM1 Figure 2 1 IE 703040 MC EM1 a Top view b Bottom view Direction of pin 1 of connector Direction of pin 1 of connector for target connection for target connection Connector for target connection TP5 V850 SV1 1 O chip Es Gdf 1 Ed 8555555 12 bd E c T T ES N o w Connector for IE 703002 MC connection User s Manual U14337EJ1VOUMOO 19 CHAPTER 2 NAMES AND FUNCTIONS OF COMPONENTS 1 2 3 4 5 6 7 8 9 20 TEST pins TP5 TP11 TP12 These are pins used for testing the analog signals of the standalone emulator e TP 5 GND e TP 11 GND e TP 12 GND JP1 This is a pin board for product check Mount nothing on JP1 JP2 JP4 These are pin boards for product check Use and retain the factory settings pins 2 and 3 shorted For details refer to 2 2 Clock Settings JP3 This is a pin board for supplying the subsystem clock For details refer to 2 2 Clock Settings JP5 This is a jumper for switching the main system clock supply source JP6 This is a pin b
5. clock Oscillator mounted a 32 768 kHz oscillator is mounted when standalone unit shipped When using emulator with Internal clock Oscillator mounted a 32 768 kHz oscillator is mounted when target system shipped Target clock Pins 3 and 4 of JP3 are shorted 1 2 3 4 5 6 7 0000000 JP3 Notes 1 The internal clock does not support the clock input by an oscillator 2 The target clock supports only an oscillator XT2 cannot be used because it is not connected in the emulator Clock input by oscillator is not supported 3 To use a subsystem clock frequency other than 32 768 kHz remove the clock module on JP3 and mount any oscillator The specifications of JP3 are as follows V850 SV1 I O chip XT1 XT2 d AA GND C1 XT1 XT2 C2 GND Target XT1 ie 4 Prepare the short pin 22 User s Manual U14337EJ1VOUMOO CHAPTER 2 NAMES AND FUNCTIONS OF COMPONENTS 2 3 Illegal Access Detection ROM Setting If using the IE 703002 MC for an in circuit emulator for the V850 SV1 by connecting the IE 703040 MC EM1 set JP1 of the IE 703002 MC as follows Table 2 3 JP1 Setting in IE 703002 MC Description Illegal access detection ROM mounted on IE 703040 MC EM1 for V850 SV1 is used Note When JP1 is set open keep the removed jumper contact attached to one pin JP1 as shown in the drawing on the right O Jumper contact 2 4 CPU Operation Voltage Range Sw
6. the IE 703002 MC via IE 70000 MC SV3 EthernetTM Power adapter AC adapter for in circuit emulator made by NEC Corporation IE 70000 MC PS B Notes 1 For further information contact Daimaru Kogyo Co Ltd Tokyo Electronics Department TEL 81 3 3820 7112 Osaka Electronics Department TEL 81 6 6244 6672 2 Cannot be used for PC98 NX series User s Manual U14337EJ1VOUMOO 11 CHAPTER 1 OVERVIEW 1 2 Features When Connected to IE 703002 MC Maximum operating frequency 20 MHz at 3 3 to 5 0 V operation Extremely lightweight and compact Higher equivalence with target device can be achieved by omitting buffer between signal cables 0000 The following pins can be masked RESET NMI WAIT HLDRQ Two methods of connection to target system e Pod tip direct connection For information on the pod refer to the IE 703002 MC User s Manual U11595E e Attach an extension probe sold separately to the pod tip for connection O The dimensions of the IE 703040 MC EM1 are as follows O Power consumption Max value at 3 3 V supply voltage 0 35 W at 20 MHz operation frequency DRAWINGS Note 10 35 W when IE 703002 MC connected to IE 703040 MC EM1 1 3 Function Specifications When Connected to IE 703002 MC Emulation memory capacity Internal ROM 256 Kbytes External In ROM less mode 2 Mbytes memory When using iROM 1 Mbyte Coverage memory capacity for Internal ROM 256 Kbytes execution pass detection Ex
7. 00000000000 000 00000 0000 OO OO 0 0 0 OO 0000 0000 00000 00000 000000 0000 000000 0 0 0_0_0_0 00000 OO 0 0 0 OO 0 0 0 eee 0 0000000000000000 O0 0 00 0 00 0 O0 OOO OO OO OO OO OO 0 OO OO OO 0 0 Ge 09 Ge Ge Ge Ge Ge E 09 Ge Ge 09 Ge Ge o O 0000000000000000 DH O O O O O Q O O O O O Q Pin A1 position O O O O O O O O O O O O O O Insertion guide IE 703002 MC insertion area O O O O O O O O O Ww E e uw Se Le a e Kl lt fe oO O 2 O O O O O O O
8. 3002 MC pod jumpers JP1 to JP4 Open JP1 and JP3 Remove the jumper contact and attach the removed jumper contact to one of the jumper pins to avoid losing it Retain the factory settings of JP2 pins 1 and 2 shorted and pins 5 and 6 shorted Short pins 2 and 3 of JP4 Fix the IE 703040 MC EM1 between the IE 703002 MC pod covers upper and lower with the plastic screws supplied with the IE 703002 MC Fix the IE 703002 MC pod cover upper end with nylon rivets Remark For the JP1 setting refer to 2 3 Illegal Access Detection ROM Setting For JP3 and JP4 refer to 2 4 CPU Operation Voltage Range Switch Setting User s Manual U14337EJ1VOUMOO CHAPTER 1 OVERVIEW Figure 1 4 Connection between IE 703002 MC and IE 703040 MC EM1 1 2 a Overview Nut _ Upper cover K Washer 1E 703040 MC EM1 Nylon rivets 1E 703002 MC Lower cover Plastic screw User s Manual U14337EJ1VOUMOO 17 CHAPTER 1 OVERVIEW Figure 1 4 Connection between IE 703002 MC and IE 703040 MC EM1 2 2 O O O O O O O 0000000000000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 e 0 0 0 OO OO OO 0 0 0 0 0 0 0 0 0 22222222 Le eee 0 00
9. EC Electronics Singapore Pte Ltd Corporate Communications Dept Fax 852 2886 9022 9044 Fax 65 250 3583 Fax 1 800 729 9288 1 408 588 6130 Europe Korea Japan NEC Electronics Europe GmbH NEC Electronics Hong Kong Ltd NEC Semiconductor Technical Hotline Seoul Branch Fax 044 548 7900 Technical Documentation Dept Fax 02 528 4411 Fax 49 211 6503 274 South America Taiwan NEC do Brasil S A NEC Electronics Taiwan Ltd Fax 55 11 6465 6829 Fax 02 2719 5951 would like to report the following error make the following suggestion Document title Document number Page number If possible please fax the referenced page or drawing Document Rating Excellent Acceptable Clarity a Technical Accuracy a Organization a
10. NEC User s Manual IE 703040 MC EM1 In circuit Emulator Option Board Target device V850 SV1 Document No U14337EJ1VOUMOO 1st edition Date Published August 1999 N CP K NEC Corporation 1999 Printed in Japan MEMO 2 User s Manual U14337EJ1VOUMOO V850 Family and V850 SV1 are trademarks of NEC Corporation Windows is either a trademark or a registered trademark of Microsoft Corporation in the United States and or other countries PC AT is a trademark of International Business Machines Corporation Ethernet is a trademark of Xerox Corporation UNIX is a registered trademark in the United States and other countries licensed exclusively through X Open Company Limited e The information in this document is subject to change without notice Before using this document please confirm that this is the latest version e 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 e 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 C
11. Plastic screws NQPACK176SD YQPACK176SD Side view Side view J NQGUID YQGUIDE ER mM M A M e Jumper contact Caution NQPACK176SD is intended for laboratory use such as program development and evaluation User s Manual U14337EJ1VOUMOO 15 CHAPTER 1 OVERVIEW 1 6 Connection between IE 703002 MC and IE 703040 MC EM1 16 The procedure for connecting the IE 703002 MC and IE 703040 MC EM1 is described below Caution Connect carefully so as not to break or bend connector pins lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt b gt lt 6 gt lt gt lt 8 gt Remove the pod cover upper and lower of the IE 703002 MC Replace the crystal oscillator mounted in the pod of the IE 703002 MC with the crystal oscillator supplied 20 MHz or an arbitrary oscillator user s frequency Set the PGA socket lever of the IE 703040 MC EM1 to the OPEN position as shown in Figure 1 4 b Connect the IE 703040 MC EM1 to the PGA socket at the back of the IE 703002 MC pod refer to Figure 1 4 c When connecting position the IE 703002 MC and IE 703040 MC EM1 so that they are horizontal Set the PGA socket lever of the IE 703040 MC EM1 to the CLOSE position as shown in Figure 1 4 b Set the IE 70
12. The purpose of this manual is to describe the proper operation of the IE 703040 MC EM1 and its basic specifications This manual is divided into the following parts e Overview Names and functions of components e Cautions It is assumed that the reader of this manual has general knowledge in the fields of electrical engineering logic circuits and microcontrollers The IE 703040 MC EM1 is used connected to the IE 703002 MC in circuit emulator This manual explains the basic setup procedure and switch settings of the IE 703002 MC when it is connected to the IE 703040 MC EM1 For the names and functions of parts and the connection of elements refer to the IE 703002 MC User s Manual U11595E To learn about the basic specifications and operation methods Read this manual in the order of the CONTENTS To learn the operation methods and command functions etc of the IE 703002 MC and IE 703040 MC EM1 Read the user s manual of the debugger sold separately that is used Note Footnote for item marked with Note in the text Caution Information requiring particular attention Remark Supplementary information Numeral representation Binary xxxx or xxxxB Decimal xxxx Hexadecimal xxxxH Prefix indicating the power of 2 address space memory capacity K kilo 2 1024 M mega 2 1024 The meanings of terms used in this manual are listed below Target device The device that is targeted for emulation
13. e te ee 23 4 1 Bus Interface Pin Operation Listin tia ciated ee ns 29 User s Manual U14337EJ1VOUMOO 9 MEMO 10 User s Manual U14337EJ1VOUMOO CHAPTER 1 OVERVIEW The IE 703040 MC EM1 is an option board for the IE 703002 MC in circuit emulator By connecting the IE 703040 MC EM1 and IE 703002 MC hardware and software can be debugged efficiently in system development using the V850 SV1 In this manual the basic setup procedure and switch settings of the IE 703002 MC when using the IE 703040 MC EM1 are described For the names and functions of the parts of the IE 703002 MC and for the connection of elements refer to the IE 703002 MC User s Manual U11595E 1 1 Hardware Configuration Optional hardware In circuit emulator IE 703002 MC Option board By adding this board the IE 703002 MC can be used as in circuit IE 703040 MC EM1 emulator for V850 SV1 Optional hardware Extension probe SC 176SD General purpose extension probe made by TOKYO ELETECH CORPORATION PC interface board This board is used to connect the IE 703002 MC to a personal computer IE 70000 xx IF B This board is inserted in the expansion slot of the personal computer IE 70000 xx IF C xx 98 for PC 9800 series C bus IE 70000 PCI IF PC for IBM PC AT or compatibles ISA bus IE 70000 CD IF A IE 70000 PCI IF for PCI bus IE 70000 CD IF A for PCMCIA socket Network module This module is used when a workstation controls
14. ermany GmbH Duesseldorf Germany Tel 0211 65 03 02 Fax 0211 65 03 490 NEC Electronics UK Ltd Milton Keynes UK Tel 01908 691 133 Fax 01908 670 290 NEC Electronics Italiana s r l Milano Italy Tel 02 66 75 41 Fax 02 66 75 42 99 NEC Electronics Germany GmbH Benelux Office Eindhoven The Netherlands Tel 040 2445845 Fax 040 2444580 NEC Electronics France S A Velizy Villacoublay France Tel 01 30 67 58 00 Fax 01 30 67 58 99 NEC Electronics France S A Spain Office Madrid Spain Tel 91 504 2787 Fax 91 504 2860 NEC Electronics Germany GmbH Scandinavia Office Taeby Sweden Tel 08 63 80 820 Fax 08 63 80 388 User s Manual U14337EJ1VOUMOO NEC Electronics Hong Kong Ltd Hong Kong Tel 2886 9318 Fax 2886 9022 9044 NEC Electronics Hong Kong Ltd Seoul Branch Seoul Korea Tel 02 528 0303 Fax 02 528 4411 NEC Electronics Singapore Pte Ltd United Square Singapore 1130 Tel 65 253 8311 Fax 65 250 3583 NEC Electronics Taiwan Ltd Taipei Taiwan Tel 02 2719 2377 Fax 02 2719 5951 NEC do Brasil S A 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 Target Readers Purpose Organization How to Read This Manual Conventions Terminology INTRODUCTION This manual is intended for users who design and develop application systems using the V850 SV1 TM
15. itching Setting If using the IE 703002 MC for an in circuit emulator for the V850 SV1 by connecting the IE 703040 MC EM1 set JP3 and JP4 of the IE 703002 MC as follows Table 2 4 JP3 and JP4 Setting in IE 703002 MC Description The operation voltage range of the IE 703002 MC is to 2 to 3 6 V The operation voltage range of the target system is 2 to 4 5 V Use this setting since the operation voltage range of the V850 SV1 is 2 to 3 6 V Caution By settings of JP3 JP4 above when the power supply of the target system is on the IE 703002 MC operates at the same voltage as the target system The IE 703002 MC always operates at 3 3 V when the power supply of the target system is off and using emulator as standalone unit User s Manual U14337EJ1VOUMOO 23 MEMO 24 User s Manual U14337EJ1VOUMOO CHAPTER 3 FACTORY SETTINGS Description Oscillator not mounted Remark Pin board for product check Jumper switch for product check Oscillator mounted 32 768 kHz clock supplied for subsystem clock 1 2 3 Jumper switch for product check Internal clock used for main system clock Jumper switch for product check User s Manual U14337EJ1VOUMOO 25 MEMO 26 User s Manual U14337EJ1VOUMOO 4 1 CHAPTER 4 CAUTIONS Voo and BVob of Target System BVoo in the target system is not connected to BVob in the evalua
16. nection YQPACK176SD included lt 11 gt Connector for target connection NQPACK176SD included lt 12 gt Power adapter IE 70000 MC PS B sold separately lt 13 gt AC100 V power cable sold separately included with IE 70000 MC PS B lt 14 gt AC220 V power cable sold separately included with IE 70000 MC PS B User s Manual U14337EJ1VOUMOO 13 CHAPTER 1 OVERVIEW 1 5 Contents in Carton The carton of the IE 703040 MC EM1 contains a main unit guarantee card packing list and accessory bag Make sure that the accessory bag contains this manual and the connector accessories If there are missing or damaged items please contact an NEC sales representative or an NEC distributor Figure 1 2 Contents in Carton lt 4 gt Packing list lt 3 gt Guarantee card IE 703040 MC EM1 x 1 Accessory bag x 1 Guarantee card x 1 Packing list x 1 14 User s Manual U14337EJ1VOUMOO CHAPTER 1 OVERVIEW Check that the accessory bag contains this manual an accessory list x 1 and the following accessories a Connector for target connection NQPACK176SD x 1 including NQGUIDE x 3 driver x 1 b Connector for emulator connection YQPACK176SD x 1 including YQGUIDE x 4 c Crystal oscillator 20 MHz 8 pin type d Plastic screws x 4 including nuts and washer x 4 e Jumper contact x 1 Figure 1 3 Accessories a Connector for target connection b Connector for emulator connection c Crystal oscillator d
17. oard for product check Use and retain the factory settings pins 1 and 2 shorted LED LED for VPP ON Voltage is applied to Ver OFF Voltage is not applied to Vrp Connector for IE 703002 MC connection This is a connector for connecting with the IE 703002 MC Connector for target connection This is a connector for connecting with the target system or the extension probe User s Manual U14337EJ1VOUMOO CHAPTER 2 NAMES AND FUNCTIONS OF COMPONENTS 2 2 Clock Settings This section describes the clock settings For the position of the JP1 and JP2 in the IE 703040 MC EM1 refer to Figure 2 1 For the jumper switch position in the IE 703002 MC refer to the IE 703002 MC User s Manual U11595E 2 2 1 Main system clock setting Table 2 1 Main System Clock Setting Emulator Use Clock Supply Method IE 703040 MC EM1 Setting IE 703002 MC Setting Environment When using Internal clock emulator as standalone unit When using Internal clock emulator with target system Target clock Note The target clock supports only an oscillator X2 cannot be used because it is not connected in the emulator Clock input by resonator is not supported User s Manual U14337EJ1VOUMOO 21 CHAPTER 2 NAMES AND FUNCTIONS OF COMPONENTS 2 2 2 Subsystem clock setting Table 2 2 Subsystem Clock Setting Emulator Use Clock Supply Method IE 703040 MC EM1 Setting When using emulator as Internal
18. orporation or of others e Descriptions of circuits software and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples The incorporation of these circuits software and information in the design of the customer s equipment shall be done under the full responsibility of the customer NEC Corporation assumes no responsibility for any losses incurred by the customer or third parties arising from the use of these circuits software and information M7A 98 8 User s Manual U14337EJ1VOUMOO 3 Regional Information Some information contained in this document may vary from country to country Before using any NEC product in your application please 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 e 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 NEC Electronics Inc U S Santa Clara California Tel 408 588 6000 800 366 9782 Fax 408 588 6130 800 729 9288 NEC Electronics G
19. ternal In ROM less mode 2 Mbytes memory When using iROM 1 Mbyte Coverage memory capacity for External memory 1 Mbyte memory access detection Coverage memory capacity for Internal Internal ROM o 256 256 Kbytes branching entry number counting External In ROM less mode 2 Mbytes memory When using ROM 1 Mbyte Caution Some of the functions may not be supported depending on the debugger used 12 User s Manual U14337EJ1VOUMOO CHAPTER 1 OVERVIEW 1 4 System Configuration The system configuration when connecting the IE 703002 MC to the IE 703040 MC EM1 and a personal computer PC 9800 series or PC AT or compatibles is shown below Figure 1 1 System Configuration Magnified drawing example of use of connector for target connection A For PC 9800 series compatibles Remark lt 1 gt Personal computer PC 9800 series or PC AT or compatibles Debugger sold separately PC interface board IE 70000 98 IF B IE 70000 98 IF C IE 70000 PC IF B IE 70000 PC IF C sold separately PC interface cable included with IE 703002 MC In circuit emulator IE 703002 MC sold separately In circuit emulator option board IE 703040 MC EM1 External logic probe included with IE 703002 MC Socket for target connection YQSOCKET176SDN sold separately Extension probe SC 100SD sold separately lt 10 gt Connector for emulator con
20. tion chip in the IE 703002 MC The IE 703002 MC uses BVob of the target system for the following purposes e Power ON OFF detection of target system e Bop emulation of target system When the voltage of the target system is 1 V or higher the evaluation chip in the emulator operates using the supply of Voo from the target system The power consumption is equivalent to that of the V850 SV1 When the voltage of the target system is lower than 1 V the emulator recognizes the target system power is off and operates at 3 3 V Figure 4 1 Schematic Diagram of Power Supply Acquisition Target system IE 703040 MC EM1 IE 703002 MC Target voltage emulation V850 SV1 UO chip Voo E y Evaluation chip BVoo gt 1 V VN BVoo lt 1 V User s Manual U14337EJ1VOUMOO 27 CHAPTER 4 CAUTIONS 4 2 NMI Signal The input signal NMI signal from the target system is delayed top 0 25 ns TYP because it passes through QS3125 Q switch before it is input to the I O chip of the emulator In addition the DC characteristics change The input voltage becomes Vin 2 0 V MIN Vi 0 8 V MAX and the input current becomes lin 0 5 uA MAX Figure 4 2 NMI Signal Flow Path IE 703040 MC EM1 NMI signal Target system Lm QS3125 VO chip 4 3 Vpp Signal The Vrr signal from the target system is connected to LED via a 330 Q resistor in the emulator It is not connected
21. to the evaluation chip in the emulator Figure 4 3 Ver Signal Flow Path IE 703040 MC EM1 Target system Ver signal LED Evaluation LL chip 28 User s Manual U14337EJ1VOUMOO CHAPTER 4 CAUTIONS 4 4 NMI Signal Mask Function When using the POO NMI pin in the port mode do not mask the NMI signal 4 5 Bus Interface Pin The operation of the pin for the bus interface differs between the emulator and the target device as follows Table 4 1 Bus Interface Pin Operation List 1 2 a During break Pin Name Internal Memory External Memory Memory Used by Internal Internal RAM Internal Emulation RAM Target System Emulator ROM Peripheral I O F R W R R W R W R W R W A16 to A21 Hold the last accessed address Active Active ADO to AD15 Hi Z Active Active ASTB H Active Active RW H Active Active DSTB H H Active LBEN H Active Active UBEN H Active Active WAIT Invalid Maskable Maskable HLDRQ Maskable Maskable Maskable HLDAK HorL HorL HorL WRL H H H Note WRH H H H Note RD H H Note H Note Active Remarks 1 F Fetch R Read W Write 2 H High level output L Low level output Hi Z High impedance User s Manual U14337EJ1VOUMOO 29 CHAPTER 4 CAUTIONS Table 4 1 Bus Interface Pin Operation List 2 2 b During run Internal Memory External Memory Internal ROM Internal RAM Internal Emulation RAM Target System Peripheral UO
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