E1/E20 Emulator Additional Document for User`s Manual
Contents
1. As shown in Figure 2 11 this effect can be reduced by placing a ferrite bead or inductor and relatively large capacitor with low equivalent series resistance near the TVDD line of the connector for connection of the emulator Note that this measure will not completely eliminate the voltage drop Hot plug in is only for use during debugging with a JTAG connection or LPD connection and requires a hot plug in adapter that is separately available from Renesas Ferrite bead or inductor 10 to 47 uF I p 14 pin connector Figure 2 10 E1 E20 Emulator Internal Circuit Figure 2 11 The Measure Method of E1 Emulator R20UT1002EJ0300 Rev 3 00 Page 17 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 2 Connecting the Emulator and User System 2 3 4 Power supply function applies only to the E1 emulator The El emulator can supply power to a system for simple evaluation It can supply up to 200 mA of current If you are using the power supply function of the El emulator check the voltage supplied to the user system In particular the 5 0 V supply depends on the USB VBUS power supply voltage and the voltage might be lower than 5 0 V by 0 5 V or more Power supply from the El emulator depends on the quality of the USB power supply of the host machine and as such precision is not guaranteed When writing a program that requires reliability do not use the power supply function of the El emulator Use a stable separate power supply2. e Allocation of memory spaces for debugging e Allocation of a serial interface for communications 3 1 Reset handler The reset handler must include an instruction to jump to the debug monitor program Securing the area It is not necessary to secure this area intentionally When downloading a program however the debugger rewrites the reset vector as described below in the various cases given If the rewriting pattern does not match the following cases the software tool is generating an error e When three nop instructions are consecutively placed from address 0 Before rewriting After rewriting 0x0 nop Instruction to jump to the debug monitor program at 0x0 Ox2 nop Ox4 nop Ox6 XXXX Ox6 XXXX e When three OxFFFFs are consecutively placed from address 0 applies to erased devices Before rewriting After rewriting 0x0 OxFFFF Instruction to jump to the debug monitor program at 0x0 0x2 OxFFFF 0x4 OxFFFF Ox6 XXXX Ox6 XXXX e The jr instruction is placed at address 0 when using the CX compiler from Renesas Electronics Before rewriting After rewriting 0x0 jr disp22 Instruction to jump to the debug monitor program at 0x0 Ox4 xxx Ox6 xxx Ox6 jr disp22 6 R20UT1002EJ0300 Rev 3 00 Page 21 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 3 Securing Debug Resources for Serial OCD Interface e mov32 and jmp are consecutively placed from address 0 Before rewriting After rewriting 0x0 mov imm32 regl Instruction to jump
3. 1 1 Features of an E1 or E20 emulator o oo cc ccccssccsscecsseecsseecsseeesscecssceceaeecsseecessessaeeseeecssaeceseeceseeseseesesaecseaeceeeceseeceaeeseseeseaeesaees 4 1 2 Caution on using the E20 emulator sus cu ade a ETNE GK av a een KVARO IO le Peale hon pa hen KOTERIO ade eee PN 4 1 3 Configuration of MANUAIS ape EO E A OE OLEO EO EO Ork KE VIO KE ERA 4 2 Connecting the Emulator and User System esssssssseeeeennnnnnnnnkknnnnnnnnneeeIKIKKKKKIIKIIII III IIIIIIIKKIIII II EErEE EErEE eenaa 5 2 1 Connector mounted on the user SYSTEM ec ccc ccceecceseeeseeeseceseceseessaecseceseceseceseeeseesseecseeceseceseceseceseceseeesaeceseeeseeeseeeeeeseeenseeegs 5 2 2 Pin assignments of the COMMECHOL 0 0 0 0 ccc ecceecceecseeceecessceesceeseecsacenseenscesseeesaecenecsaeceaeseaeeeseesseesseeesaeecseeeseesseecesecseeceaeceaeseaeseaeeesees 7 2 3 Examples of recommended connections between the connector and MCU ccsccesecceseeesseeesseeeeseeeeseeesseeeesees 8 2 3 1 Example of recommended Connections 0 0 0 0 ec eeccescsssssesceeseeeseeesnecseecseeececnecsaecsaeceaeseaeesseseseenseeeeeseeessaecaeceeeeeeeeeaeseaeeaeens 8 2 3 2 Connecting te RESET DII 1 ua eee aes eer ae eee ee ees 16 2 3 3 DONNECIMO VOD sp o oO AE Cee eee re re Te ere rere 17 2 3 4 Power supply function applies only to the E1 emulator cccsccceseccesseeeesseeeceeseeeseseeeseseeceeseeeesseeeseseeeneaeees 18 2 3 5 16 pin conversion adapter for the E1 emu
4. If you are using a multiplexed function which requires that this signal be pulled up connect it to pin 9 FLMDI of the emulator before it is set to the low level during programming of the flash memory 3 Refer to the datasheet of the device regarding the resistance and whether the resistor should be pulling up or pulling down 4 Pin names may vary among target devices Refer to the user s manual for the target device you are using for the actual pin names R20UT1002EJ0300 Rev 3 00 Page 11 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 2 Connecting the Emulator and User System Target device Note4 1kO 4 TKQ 1OkKO Note1 FLMDO RESET IN FPDR VDD Oo RESET OUT RESET Note1 GND RESET OUT GND FLMD1 x a a AJOJN gt 10kQ Note3 Note2 Note1 die Note3 E1 E20 14pin Reset Circuit Note1 Caution Make wiring runs between the connector and the target device as short as possible Figure 2 5 Example of Recommended Connection Both Debugging UART and Programming UART Serial OCD e Make wiring runs between the 14 pin connector and target device as short as possible within 50 mm is recommended Do not connect the signal lines between the connector and MCU to other signal lines e Use GND to apply a guard ring for the wiring which runs between the 14 pin connector and target device Do not route high speed signal lines parallel to each other or allow them to cross each other
5. e Pin names may vary among target devices Refer to the user s manual for the target device you are using for the actual pin names e Proceed with appropriate processing for pins of target devices which do not require connection to the emulator in accord with the descriptions in Handling of Unused Pins in the user s manual for the target device Notes l This connection is designed on the assumption that the RESET signal output is from an N channel open drain buffer For details refer to section 2 3 2 Connecting the RESET pin 2 This signal must be set to the low level during a reset If you are using a multiplexed function make sure that this signal is not at the high level on release from the reset state 3 Refer to the datasheet of the device regarding the resistance and whether the resistor should be pulling up or pulling down 4 Pin names may vary among target devices Refer to the user s manual for the target device you are using for the actual pin names R20UT1002EJ0300 Rev 3 00 Page 12 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 2 Connecting the Emulator and User System Target device Emulator connector Noted 4 TROP TOKO FPOR YOO FMLD1 RESET OUT GND RESET_OUT GND Note kou i E1 E20 14pin ath Reset hhc Note Note3 Note3 1 5 Fi a 12 Ma Caution Make wiring runs between the connector and the target device as short as possible Figure 2 6 Example of Re
6. for the user system When writing a program for mass production processes use the Flash Development Toolkit or the Renesas Flash Programmer For details on the flash programming software refer to http www renesas com products tools flash prom programming Warning for Turning the Power On Off When supplying power ensure that there are no shorts between the user system and power circuit Only connect the El or E20 after confirming that there are no mismatches of alignment on the user system port connector Incorrect connection will result in the host machine the emulator and the user system emitting smoke or catching fire 2 3 0 16 pin conversion adapter for the E1 emulator When the El emulator is connected to a user system having the 16 pin connector which was supported by the QB MIND QB V850MINI QB V850MINIL PG FP5 etc use the 16 pin conversion adapter for the El emulator QB F14T16 01 that is separately available from Renesas 2 3 6 Hot plug in adapter for the E1 emulator For hot plug in connection use the hot plug in adapter for the El emulator ROEOOOOIOACBOO that is separately available from Renesas 2 3 7 isolator for the E1 emulator For a debugging environment where there is a GND gap between the user system and host PC use the isolator for the El emulator ROE000010ACB20 that is separately available from Renesas 2 3 8 Small connector conversion adapter for the E1 emulator The small connector c
7. intend to use the 14 pin connector do not mount components with heights exceeding 10 mm within 5 mm of the connector on the user system If you are using a 16 pin connector the QB F14T16 01 adapter optional product is available for connection to the user system interface cable Note that this connector does not support direct connection of an E20 emulator which has a 38 pin connection To use an E20 emulator with a 14 pin connector use the 38 pin 14 pin conversion adapter ROE000200CKAOO that comes with the E20 R20UT1002EJ0300 Rev 3 00 Page 5 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 2 Connecting the Emulator and User System 14 pin user system interface cable 14 pin type connector SS system Top view 5mm NN Area where restriction applies to mounted components components must have heights no greater than 10 mm Figure 2 1 Connecting the User System Interface Cable to the 14 pin Connector in the E1 E20 Emulator CAUTION Note on connector insertion and removal connector cover at the end of the cable Pulling the cable itself will damage the wiring Also be aware that the user system interface cable has the direction in which it must be inserted If the cable is connected in the wrong direction it may be damaged Q When connecting or disconnecting the user system interface cable and the emulator or user system grasp the R20UT1002EJ0300 Rev 3 00 Page 6 of 34 Oct 01 2015 RENESAS E1 E20 Emul
8. not limited to the development of weapons of mass destruction When exporting the Renesas Electronics products or technology described in this document you should comply with the applicable export control laws and regulations and follow the procedures required by such laws and regulations It is the responsibility of the buyer or distributor of Renesas Electronics products who distributes disposes of or otherwise places the product with a third party to notify such third party in advance of the contents and conditions set forth in this document Renesas Electronics assumes no responsibility for any losses incurred by you or third parties as a result of unauthorized use of Renesas Electronics products This document may not be reproduced or duplicated in any form in whole or in part without prior written consent of Renesas Electronics Please contact a Renesas Electronics sales office if you have any questions regarding the information contained in this document or Renesas Electronics products or if you have any other inquiries Note 1 Renesas Electronics as used in this document means Renesas Electronics Corporation and also includes its majority owned subsidiaries Note 2 Renesas Electronics product s means any product developed or manufactured by or for Renesas Electronics 2012 4 E1 E20 Emulator Contents Contents ME TEoElRkhBRRRRUIUII T ooo 4
9. periods in DeepStop mode and resets No 13 PWGD pin Description The PWGD pin must be fixed to the high level when not in use Even if the PWGDEN option byte is cleared to 0 handle the PWGD pin by fixing it to the high level when not in use No 14 Debugging when the POC function and the power supply are turned off Description The power supply of the user system must not be turned off during debugging Check the operation when the POC function and the power supply of the user system are turned off while the emulator is not connected If the power supply of the user system is even momentarily turned off the debugger may hang No 15 ECC errors Description In flash self programming a program is downloaded to initialize the internal RAM area so that no ECC errors occur Therefore ECC errors cannot be emulated after downloading of a program No 16 Stopping the high speed internal oscillator high speed IntOsc Description Generation of break while the high speed IntOsc is stopped may cause the debugger to hang Apply a reset to restore debugger operation No 17 Iso0 and lso1 areas Description During debugging power to the IsoO and Isol areas 1s not shut down during an internal or external reset or While 1n deep stop mode so that values 1n RAM are retained R20UT1002EJ0300 Rev 3 00 Page 28 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 5 Notes on Usage No 18 Reset through the external pin Description Do not a
10. the automatic running period the contents of the flash memory must be erased once by using the flash programming software RFP or a flash programmer e g the PG FP5 Also review the setting of the option byte which is used to set operation of the internal watchdog timer as required R20UT1002EJ0300 Rev 3 00 Page 31 of 34 Oct 01 2015 RENESAS E1 E20 Emulator Additional Document for User s Manual Notes on Connection of V850E2M and V850E2S Published by Renesas Electronics Corporation LENESAS SALES OFFICES Renesas Electronics Corporation http www renesas com Refer to http www renesas com for the latest and detailed information Renesas Electronics America Inc 2801 Scott Boulevard Santa Clara CA 95050 2549 U S A Tel 1 408 588 6000 Fax 1 408 588 6130 Renesas Electronics Canada Limited 9251 Yonge Street Suite 8309 Richmond Hill Ontario Canada L4C 9T3 Tel 1 905 237 2004 Renesas Electronics Europe Limited Dukes Meadow Millboard Road Bourne End Buckinghamshire SL8 5FH U K Tel 44 1628 585 100 Fax 44 1628 585 900 Renesas Electronics Europe GmbH Arcadiastrasse 10 40472 Dusseldorf Germany Tel 49 211 6503 0 Fax 49 211 6503 1327 Renesas Electronics China Co Ltd Room 1709 Quantum Plaza No 27 ZhiChunLu Haidian District Beijing 100191 P R China Tel 86 10 8235 1155 Fax 86 10 8235 7679 Renesas Electronics Shanghai Co Ltd Unit 301 Tower A Central Towers 555 La
11. to the debug monitor program at 0x0 Ox6 jmp reg 0x6 mov imm32 regl Oxc jmp reg 1 e The instruction to jump to the debug monitor program has been placed at address 0 Before rewriting After rewriting Instruction to jump to the debug monitor program at 0x0 Not changed 3 2 Securing memory areas for debugging Since the shaded areas in Figure 3 1 are the areas reserved for the debugging monitor program user programs and data cannot be allocated to these areas These areas must be secured so that they are not used by the user program Internal ROM area Internal RAM area Internal ROM end address Internal RAM end 20 bytes address 4 Kbytes Vector of received interrupt for debugging Note 2 gging The debugger automatically allocates this area refer to section 6 bytes 0x60 interrupt vector for 3 1 Reset handler debugging This is assigned as a reserved area for the device 6 bytes 0x00 reset vector Note 1 Figure 3 1 Memory Areas Required by the Debug Monitor Program R20UT1002EJ0300 Rev 3 00 Page 22 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 3 Securing Debug Resources for Serial OCD Interface 3 3 Securing a serial interface for communications The debugging monitor program secures a serial interface for communications by setting the I O registers However a user program changing the settings may lead to an error in communications To prevent such a problem from occurring the user prog
12. 0 Emulator 2 Connecting the Emulator and User System E mu lator con r FLMD1 RESET OUT GND FLMD1 GND Note1 E E20 14pin Reset Circuit Caution Make wiring runs between the connector and the target device as short as possible Figure 2 4 Example of Recommended Connection Only Programming CSI e Make wiring runs between the 14 pin connector and target device as short as possible within 50 mm is recommended Do not connect the signal lines between the connector and MCU to other signal lines e Use GND to apply a guard ring for the wiring which runs between the 14 pin connector and target device Do not route high speed signal lines parallel to each other or allow them to cross each other e Pin names may vary among target devices Refer to the user s manual for the target device you are using for the actual pin names e Proceed with appropriate processing for pins of target devices which do not require connection to the emulator in accord with the descriptions in Handling of Unused Pins in the user s manual for the target device Notes l This connection is designed on the assumption that the RESET signal output is from an N channel open drain buffer For details refer to section 2 3 2 Connecting the RESET pin 2 This signal must be set to the low level during a reset If you are using a multiplexed function make sure that this signal is not at the high level on release from the reset state
13. 1 E20 emulator and the user system following the procedure below When a separate power supply is used for the user system lt When using the emulator gt 1 Check the power is off Check that the user system is turned off When using the E20 emulator check its power switch is off 2 Connect the user system Connect the emulator and the user system with a user system interface cable 3 Connect the host machine and turn on the emulator Connect the emulator and the host machine with a USB interface cable The E1 emulator is turned on by connecting the USB interface cable When using the E20 emulator turn on its power switch 4 Turn on the user system Turn on the user system 5 Launch the emulator debugger Launch the debugger R20UT1002EJ0300 Rev 3 00 Page 29 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 5 Notes on Usage When finished using the emulator 1 Close the emulator debugger Close the emulator debugger 2 Turn off the user system Turn off the user system 3 Turn off the emulator and disconnect the emulator When using the E20 emulator turn off its power switch Disconnect the USB interface cable from the E1 E20 emulator The E1 emulator is turned off by disconnecting from the USB interface cable 4 Disconnecting the user system Disconnect the user system interface cable from the user system Notes on the User System Power Supply While the power of the user system 1s on do
14. Ban e oeeoa o EEoeeofjhfh 26 5 2 DELAS recs eats sae chested cls pest ce cece E tgs cde cu aun ee eed E eee heen eset 21 R20UT1002EJ0300 Rev 3 00 Page 3 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 1 Outline 1 Outline 1 1 Features of an E1 or E20 emulator An El or E20 emulator hereafter referred to as an E1 E20 is an on chip debugging emulator that includes a flash programming function which is used for debugging and programming programs to be embedded in microcontrollers that have on chip flash memory That is either product can debug a program while the target microcontroller is connected to the user system and can write programs to the on chip flash memory of microcontrollers 1 2 Caution on using the E20 emulator The functions used for debugging of the V850E2M and V850E2S devices by using the E20 emulator are the same as in the El emulator Large trace function characteristic function of the E20 emulator cannot be used The power supply function from the E20 emulator is not supported 1 3 Configuration of manuals Documentation for the E1 E20 emulator manual is in two parts the E1 E20 Emulator User s Manual and E1 E20 Emulator Additional Document for User s Manual this manual Be sure to read both of the manuals before using the E1 E20 emulator 1 E1 E20 emulator user s manual The E1 E20 Emulator User s Manual describes hardware specifications inc
15. C VD o m V lt Q S D E1 E20 Emulator Additional Document for User s Manual Notes on Connection of V850E2M and V850E2S All information contained in these materials including products and product specifications represents information on the product at the time of publication and is subject to change by Renesas Electronics Corp without notice Please review the latest information published by Renesas Electronics Corp through various means including the Renesas Electronics Corp website hitp www renesas com Renesas Electronics Rev 3 00 Oct2015 www renesas com 10 11 12 Notice Descriptions of circuits software and other related information in this document are provided only to illustrate the operation of semiconductor products and application examples You are fully responsible for the incorporation of these circuits software and information in the design of your equipment Renesas Electronics assumes no responsibility for any losses incurred by you or third parties arising from the use of these circuits software or information Renesas Electronics has used reasonable care in preparing the information included in this document but Renesas Electronics does not warrant that such information is error free Renesas Electronics assumes no liability whatsoever for any damages incurred by you resulting from errors in or omissions from the information included herein Renesas Electronics does not
16. Pin names may vary among target devices Refer to the user s manual for the target device you are using for the actual pin names e Proceed with appropriate processing for pins of target devices which do not require connection to the emulator in accord with the descriptions in Handling of Unused Pins in the user s manual for the target device Notes 1 R20UT1002EJ0300 Rev 3 00 Oct 01 2015 RENESAS This connection is designed on the assumption that the RESET signal output is from an N channel open drain buffer For details refer to section 2 3 2 Connecting the RESET pin This signal must be set to the low level during a reset If you are using a multiplexed function make sure that this signal is not at the high level on release from the reset state Refer to the datasheet of the device regarding the resistance and whether the resistor should be pulling up or pulling down Design the circuit so that this resistor is separated by a switch etc when the emulator is not in use Pin names may vary among target devices Refer to the user s manual for the target device you are using for the actual pin names Page 9 of 34 E1 E20 Emulator 2 Connecting the Emulator and User System Ikvltko Ik kO Target device E mu lator connector NoEe2 Note2 Mote3 Noted H i F AP SND gt 2 zle Note1 Caution Make wiring runs between the connector and the target device as short as possible F
17. able can be set and access conditions Unavailable Performance measurement Performance JTAG connection Resolution 200 ns maximum measurement time 7 minutes Serial OCD connection Resolution 100 us maximum measurement time 119 hours and 18 minutes LPD connection Px4 L is in use CPU clock Resolution 100 ns maximum measurement time 3 5 minutes 80 MHz Resolution 125 ns maximum measurement time 4 5 minutes 64 MHz Resolution 166 ns maximum measurement Ame 6 minutes 48 MHz Hot plug in Debugging with JTAG or LPD Available requires a hot plug in adapter separately available from Renesas Not available with a serial OCD connection Peripheral breaks Programming related items Stand alone operation Not available requires connection to the host machine R20UT1002EJ0300 Rev 3 00 Page 24 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 4 Specifications Notes 1 The number of breaks that can be set depends on the specification of the device 2 With a serial connection short breaks in monitoring or delays in modification will occur With a JTAG or LPD connection such short breaks or delays will only occur if the bus is occupied and access is to an area other than the RAM 3 A function for stopping the operation of peripheral I O modules during a break is called the peripheral break function Whether or not peripheral breaks are generated is specifiable in the debugger For how
18. assume any liability for infringement of patents copyrights or other intellectual property rights of third parties by or arising from the use of Renesas Electronics products or technical information described in this document No license express implied or otherwise is granted hereby under any patents copyrights or other intellectual property rights of Renesas Electronics or others You should not alter modify copy or otherwise misappropriate any Renesas Electronics product whether in whole or in part Renesas Electronics assumes no responsibility for any losses incurred by you or third parties arising from such alteration modification copy or otherwise misappropriation of Renesas Electronics product Renesas Electronics products are classified according to the following two quality grades Standard and High Quality The recommended applications for each Renesas Electronics product depends on the product s quality grade as indicated below Standard Computers office equipment communications equipment test and measurement equipment audio and visual equipment home electronic appliances machine tools personal electronic equipment and industrial robots etc High Quality Transportation equipment automobiles trains ships etc traffic control systems anti disaster systems anti crime systems and safety equipment etc Renesas Electronics products are neither intended nor authorized for use in products or
19. ator 2 Connecting the Emulator and User System 2 2 Pin assignments of the connector Table 2 2 shows the pin assignments of the 14 pin connector Table 2 2 Pin Assignments of the 14 pin Connector Signal Name active low JTAG LPD UART Serial OCD CSI Debugging Debugging Programming amp Programming Debugging TK fe GND TASTE l mo Fe RESET INE ER LPDIO FPDR FPDR VDD FLMD1 FLMD1 GND GND GND RESET OUT RESET OUT RESET OUT 72 RESET OUT 72 GND GND Notes 1 Securely connect pins 2 12 and 14 of the connector to GND of the user system These pins are used for electrical GND and to monitor connection with the user system by the El or E20 2 Be particularly sure to connect both pins 10 and 13 before using the emulator These pins are also used to monitor the user system 3 Input and output are defined from the perspective of the user system D RESET_OUT 72 RESET_OUT 72 RDY ER R20UT1002EJ0300 Rev 3 00 Page 7 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 2 Connecting the Emulator and User System 2 3 Examples of recommended connections between the connector and MCU This section describes examples of recommended connections between the target device and interface circuit The supported interfaces differ according to the target device so check the specifications of the device you are using 2 3 1 Example of recommended connections Multiple recommended
20. commended Connection Only Programming UART e Make wiring runs between the 14 pin connector and target device as short as possible within 50 mm is recommended Do not connect the signal lines between the connector and MCU to other signal lines e Use GND to apply a guard ring for the wiring which runs between the 14 pin connector and target device Do not route high speed signal lines parallel to each other or allow them to cross each other e Pin names may vary among target devices Refer to the user s manual for the target device you are using for the actual pin names e Proceed with appropriate processing for pins of target devices which do not require connection to the emulator in accord with the descriptions in Handling of Unused Pins in the user s manual for the target device Notes l This connection is designed on the assumption that the RESET signal output is from an N channel open drain buffer For details refer to section 2 3 2 Connecting the RESET pin 2 This signal must be set to the low level during a reset If you are using a multiplexed function make sure that this signal is not at the high level on release from the reset state If you are using a multiplexed function which requires that this signal be pulled up connect it to pin 9 FLMD1 of the emulator before it is set to the low level during programming of the flash memory 3 Refer to the datasheet of the device regarding the resistance and whether the re
21. ction is designed on the assumption that the RESET signal output is from an N channel open drain buffer the output resistance is 100 Q or lower For details refer to section 2 3 2 Connecting the RESET pin 2 This signal must be set to the low level during a reset If you are using a multiplexed function make sure that this signal is not at the high level on release from the reset state If you are using a multiplexed function which requires that this signal be pulled up connect it to pin 9 FLMD1 of the emulator before it is set to the low level during programming of the flash memory 3 Refer to the datasheet of the device regarding the resistance and whether the resistor should be pulling up or pulling down 4 Pin names may vary among target devices Refer to the user s manual for the target device you are using for the actual pin names R20UT1002EJ0300 Rev 3 00 Page 14 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 2 Connecting the Emulator and User System Target devic Emulator connector likata 3 4 7kO 10k0 GHD RESET OUT la Nete GND Note Notez E1 E20 14pin j l Resel pakl Caution Make wiring runs between the connector and the target device as short as possible Figure 2 8 Example of Recommended Connection Only Debugging LPD e Make wiring runs between the 14 pin connector and target device as short as possible within 50 mm is recommended Do not connect the signal lines between
22. examples for connection are given In accord with the purposes for which the emulator is to be used Select the appropriate circuit with reference to the table shown below Be sure to take the specifications of the target device as well as measures to prevent noise into consideration when designing your circuit a UN OJ Both debugging JTAG and programming CSI Only debugging JTAG Only programming CSI Both debugging UART and programming UART serial OCD Only programming UART Both debugging LPD and programming UART Only debugging LPD R20UT1002EJ0300 Rev 3 00 Page 8 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 2 Connecting the Emulator and User System VOD VOD Ik l0kO Tk kO Target device Noted Mot Note4 Notes GND TRST FLMDO TDOFPDT TOUFFDR VDD l TMSFLMD RESET OUT ROY GND GND ET EZ0 14pin Caution Make wiring runs between the connector and the target device as short as possible Figure 2 2 Example of Recommended Connection Both Debugging JTAG and Programming CSI e Make wiring runs between the 14 pin connector and target device as short as possible within 50 mm is recommended Do not connect the signal lines between the connector and MCU to other signal lines e Use GND to apply a guard ring for the wiring which runs between the 14 pin connector and target device Do not route high speed signal lines parallel to each other or allow them to cross each other e
23. gn Please be sure to implement safety measures to guard them against the possibility of physical injury and injury or damage caused by fire in the event of the failure of a Renesas Electronics product such as safety design for hardware and software including but not limited to redundancy fire control and malfunction prevention appropriate treatment for aging degradation or any other appropriate measures Because the evaluation of microcomputer software alone is very difficult please evaluate the safety of the final products or systems manufactured by you Please contact a Renesas Electronics sales office for details as to environmental matters such as the environmental compatibility of each Renesas Electronics product Please use Renesas Electronics products in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances including without limitation the EU RoHS Directive Renesas Electronics assumes no liability for damages or losses occurring as a result of your noncompliance with applicable laws and regulations Renesas Electronics products and technology may not be used for or incorporated into any products or systems whose manufacture use or sale is prohibited under any applicable domestic or foreign laws or regulations You should not use Renesas Electronics products or technology described in this document for any purpose relating to military applications or use by the military including but
24. igure 2 3 Example of Recommended Connection Only Debugging JTAG e Make wiring runs between the 14 pin connector and target device as short as possible within 50 mm is recommended Do not connect the signal lines between the connector and MCU to other signal lines e Use GND to apply a guard ring for the wiring which runs between the 14 pin connector and target device Do not route high speed signal lines parallel to each other or allow them to cross each other e Pin names may vary among target devices Refer to the user s manual for the target device you are using for the actual pin names e Proceed with appropriate processing for pins of target devices which do not require connection to the emulator in accord with the descriptions in Handling of Unused Pins in the user s manual for the target device Notes l This connection is designed on the assumption that the RESET signal output is from an N channel open drain buffer For details refer to section 2 3 2 Connecting the RESET pin 2 Refer to the datasheet of the device regarding the resistance and whether the resistor should be pulling up or pulling down 3 Design the circuit so that this resistor is separated by a switch etc when the emulator is not in use 4 Pin names may vary among target devices Refer to the user s manual for the target device you are using for the actual pin names R20UT1002EJ0300 Rev 3 00 Page 10 of 34 Oct 01 2015 RENESAS E1 E2
25. lator ooo eee cecceeceseeeeeeceeeceseceaeecsuecaeceaeceaeceaeeeaeceseesaeeeeeeeeeeseeeceaeeeaeeeeeeeees 18 2 3 6 Hot plug in adapter for the E1 emulator ccccceseeseesseesseeecseesseeseesseeeeeceecaecseessaeseaeseseeeseeeeeeeaeeeseeeeeeeeeeeaeeues 18 2 3 7 Isolator for the ET CriUlatOr sic itssecisscoenasedessasssiedasadaiedesssaiuseradelcaseesadavandeledisadsavexcadetsasaaned Conscileiieieaseiceesasibeiaabsicannadacansaaasaduenndebelszanneed 18 2 3 8 Small connector conversion adapter for the E1 emulator cece ccsscccseceesecceseecesseeeseeceseeeeseeeeseceeseeesseeeseeeeses 18 2 3 9 14 to 38 pin conversion adapter for the E1 emulator for the V850 0 0 cc ccccccesseceesseeeeseeeeesseeensseeeseseeensaees 19 3 Securing Debugging Resources for a Serial OCD Interface 00 0 ccc eee etna eee ee ee eee eee eee eee eee eee eee eee 21 3 1 is iupr lj lo ITTTTETTTTTTRTTTTTTTTTTTTRTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTETTTT 21 3 2 Securing memory areas for EDUQOING cessescsesssesesesrersexrsidonwdaseniasanadeausneherdcandeneneniwnnines Arinnetnnnixniidnmnundmuaandieians 22 3 3 Securing a Serial interface for COMMUNICATIONS ee ec cece cesceseceseeseeeceeseeeseeaecseeeaecaeesecaecseceaecseeeaeceeeeaeceaecaeeeaeceaeeeeeeaeenaes 23 i PE Ul INS rt LW khho 24 5 NOESON Sa caress rte sic ad a MK SESE evo ecclesia rate Ges kj ac ST ote ease ia dam eala Melina ma 26 5 1 GSE k
26. llow the generation of a reset in the form of a pin reset other than while the program is in execution If a reset is generated in this way the debugger may hang Even if the reset mask setting in the debugger is for masking the debugger may still hang If a pin reset is generated regardless of the above starting the debugger and connecting the emulator are not possible No 19 Hardware breaks in the internal RAM area Description If a hardware break is set at a location in the internal RAM area a break will occur when lower order address bits match and this leads to breaks at unintended positions as described by the example below Example When a break is set at OXOFED_COOOH breaks will also occur at the following addresses OxOIED C000H 0xO3ED C000H 0xOSED C000H 0x07ED C000H 0x0O9ED C000H OxOBED C000H and OxXODED CO000H No 20 Quality of flash programming Description To improve the quality follow the guidelines below e Circuits are designed as described in the user s manuals for the MCU and E1 E20 emulator e The MCU E1 E20 emulator and the software are used as described in respective user s manuals e The supply of power to the user system is stable No 21 Data read break Fx4 L series only Description The data read break is not available on these devices Do not set data conditions if you are debugging a program on an Fx4 L series device No 22 Turning the power on off Description Turn the power of the E
27. luding the following items e Components of the emulators e Emulator hardware specifications e Connecting the emulator to a host computer and user system 2 E1 E20 emulator additional document for user s manual An E1 E20 Emulator Additional Document for User s Manual describes functions of an emulator debugger and its contents depend on the given set of MCUs In general an additional document has notes on items including the following e For use in hardware design an example of connection and the interface circuits required to connect the emulator e Notes on using the emulator R20UT1002EJ0300 Rev 3 00 Page 4 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 2 Connecting the Emulator and User System 2 Connecting the Emulator and User System To connect the E1 E20 emulator a connector for the user system interface cable must be mounted on the user system When designing the user system read this chapter of this manual and the hardware manual for the MCUS to be used 2 1 Connector mounted on the user system Table 2 1 shows the recommended connectors for connection of the E1 E20 emulator Table 2 1 Recommended Connectors Type Specification Number 14 pin 7614 6002 Sumitomo 3M Limited 14 pin straight type Japan connector 2514 6002 3M Limited 14 pin straight type other countries Figures 2 1 shows an example of the connection of the user system interface cable of an El emulator to a 14 pin connector If you
28. n of the user program differs from that in actual operation of the device R20UT1002EJ0300 Rev 3 00 Page 27 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 5 Notes on Usage No 8 Debugging only with the actual device i e without using an E1 E20 emulator serial OCD connection only Description For debugging only with an actual device 1 e without using an E1 E20 emulator the user program must be programmed by the Renesas flash programmer RFP The programs downloaded by the debugger include the monitor program and this operates incorrectly if it is not controlled by the E1 E20 emulator No 9 Multiplexed pin functions for pins of the connection Description Multiplexed functions for pins of the connection cannot be used during debugging No 10 Current drawn Description The target device consumes more power during debugging than in normal operation since the debugging functions are operating No 11 Power saving modes Description Before setting isolated areas 0 and 1 IsoO and Isol to a power saving mode clear the wake up factor masks WUPMSKHO WUPMSKHOI5 and WUPMSKHI WUPMSKHI15 of IsoO and Isol respectively Before setting only Isol to a power saving mode clear the wake up factor masks WUPMSKHI WUPMSKH115 If these settings are not made debugger operation is disabled in power save mode and the debugger may hang No 12 WAKE pin Description The WAKE pin is fixed to the high level in some devices during
29. ng serial OCD connection only WAKE pin PWGD pin Debugging when the POC function and the power supply are turned off IsoO and Iso1 areas Reset through the external pin Hardware breaks in the internal RAM area Quality of flash programming Stopping the high speed internal oscillator high speed IntOsc Data read break Fx4 L series only No KNN 2 EE LN EE ES EEE EE 10 ENE Es EN EUN E N EE E PJ E N 2 IEN EN EN 4 5 7 10 ti 12 13 14 15 16 17 18 19 20 21 22 23 24 25 R20UT1002EJ0300 Rev 3 00 Page 26 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 5 Notes on Usage 5 2 Details No 1 Handling of devices which were used for debugging Description Do not use devices that were used for debugging in mass production This 1s because writing to the flash memory of such devices has already proceeded during debugging so we cannot guarantee the number of times rewriting of the flash memory can proceed Software errors occur when programming of the flash memory is no longer possible Replace the device in such situations No 2 Condition for breaks not being usable serial OCD connection only Description Forced breaks are not usable if the following condition is satisfied e Interrupts are disabled DI No 3 Conditions for the pseudo real time RAM monitor RRM and DMM functions not operating serial OCD connection only Description The pseudo RRM and DMM functions d
30. ngao Road Putuo District Shanghai P R China 200333 Tel 86 21 2226 0888 Fax 86 21 2226 0999 Renesas Electronics Hong Kong Limited Unit 1601 1611 16 F Tower 2 Grand Century Place 193 Prince Edward Road West Mongkok Kowloon Hong Kong Tel 852 2265 6688 Fax 852 2886 9022 Renesas Electronics Taiwan Co Ltd 13F No 363 Fu Shing North Road Taipei 10543 Taiwan Tel 886 2 8175 9600 Fax 886 2 8175 9670 Renesas Electronics Singapore Pte Ltd 80 Bendemeer Road Unit 06 02 Hyflux Innovation Centre Singapore 339949 Tel 65 6213 0200 Fax 65 6213 0300 Renesas Electronics Malaysia Sdn Bhd Unit 1207 Block B Menara Amcorp Amcorp Trade Centre No 18 Jin Persiaran Barat 46050 Petaling Jaya Selangor Darul Ehsan Malaysia Tel 60 3 7955 9390 Fax 60 3 7955 9510 Renesas Electronics India Pvt Ltd No 777C 100 Feet Road HALII Stage Indiranagar Bangalore India Tel 91 80 67208700 Fax 91 80 67208777 Renesas Electronics Korea Co Ltd 12F 234 Teheran ro Gangnam Gu Seoul 135 080 Korea Tel 82 2 558 3737 Fax 82 2 558 5141 2015 Renesas Electronics Corporation All rights reserved Colophon 4 0 E1 E20 Emulator Additional Document for User s Manual Notes on Connection of V850E2M and V850E2S LENESAS Renesas Electronics Corporation R20UT1002EJ0300
31. not turn off the host machine unplug the USB interface cable or turn off the power switch of the E20 emulator The user system may be damaged due to leakage current e When power is supplied to the user system from the emulator El emulator When using the emulator 1 Connect the user system Connect the emulator and user system with a user system interface cable 2 Connect the host machine and turn on the emulator Connect the emulator and host machine with a USB interface cable then turn on the emulator 3 Launch the emulator debugger Launch the emulator debugger and select the setting of power supply to the user system When finished using the emulator 1 Close the emulator debugger Close the emulator debugger 2 Turn off the emulator and disconnect the emulator Disconnect the USB interface cable from the emulator then turn off the emulator 3 Disconnecting the user system Disconnect the user system interface cable from the user system R20UT1002EJ0300 Rev 3 00 Page 30 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 5 Notes on Usage No 23 Note on hot plug in connection JTAG or LPD connection only Description Hot plug in connection cannot be used 1n DeepSTOP mode No 24 Note on internal watchdog timer and flash programming Description When a break is generated while an internal watchdog timer is enabled and the contents of flash memory are changed by the debugger downloading or editing f
32. o not operate if either of the following conditions is satisfied e Interrupts are currently disabled DI e The operating clock differs from that specified in the debugger No 4 Release from power saving modes HALT STOP and DEEPSTOP modes Description Using the following functions leads to release from a power saving mode e The pseudo RRM and DMM functions serial OCD connection only e Generation of a break No 5 Using the DMM function to write values to peripheral I O registers which require a specific sequence Description The DMM function cannot be used to write to peripheral I O registers that require a specific sequence of write operations for writing to succeed No 6 Flash self programming Description With a serial OCD connection If the space containing the debugging monitor program is overwritten by flash self programming the debugger will not operate correctly The following operations must be avoided Generation of breaks during flash self programming Stepped execution of a program where a step leads to flash self programming With a JTAG or LPD connection Do not access or have breakpoints set in the ROM area during flash self programming No 7 Operation after a reset serial OCD connection only Description Since the monitor program handles initialization for debugging after a reset whether due to the signal on the external pin or an internal reset the time from release from the reset state to executio
33. onversion adapter for the El emulator ROEOOOOIOCKZI 1 is separately available from Renesas for a user system board which is too small to mount the 14 pin connector that is the standard connector for the El emulator By using the adapter you can reduce the area taken up by the connector mounted on your system When you use the small connector conversion adapter for the El emulator ROEQOOO1OCKZ11 be aware that the connector pin assignments differ from those of the El emulator s standard interface connector R20UT1002EJ0300 Rev 3 00 Page 18 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 2 Connecting the Emulator and User System 2 3 9 14 to 38 pin conversion adapter for the E1 emulator for the V850 When the El emulator is connected to a user system having the Mictor connector use the 14 to 38 pin conversion adapter for the El emulator QB F14T38V850 01 that 1s separately available from Renesas Table 2 3 shows the pin assignments of the Mictor connector for the V850 Table 2 3 Pin Assignments of the Mictor Connector for the V850 u active low i GND O 29 GN 3 0 TKK input 4 MD e y 5 TMS Input 6 TRSIF Input 8 RESETOUT Input Output kk e 1 SZI CINN raa MO 2 fwo Toumi a Tuota Output 26 MDO10 2 Output 27 MDO3 2 Output 31 Ce Notes 1 Input and output are defined from the perspective of the user system 2 The El and E20 emulator
34. ram must not change the values set by the debugging monitor program Settings other than those shown overleaf are prohibited Do not change bit O of any register for port JPO which is not shown below from its initial value Port group JPO e Port IP control register x Any value 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 a CAESARS RAESEARSRARSEAEAEAEAES e Port bidirectional control register 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 AL ENKHEZKXKAGAKAKAKZERKAKAKAKNKN e Port Kaj control iaa 21 20 19 18 17 16 ue KIKSESKIKAKSENKAKSENKAKSESKAKHEI e Port function control expansion register 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 ia TOTON e Port function control register 11 i EEE EEEE ESENCA CN KNON e Port mode control register 11 mo ee EEEE EEEE e Port mode register 11 R20UT1002EJ0300 Rev 3 00 Page 23 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 4 Specifications 4 Specifications Specifications are shown 1n the table below Broad Category Medium Category Narrow Category OS depends on the software Connection to the user system by the provided user E interface cable Power supply function only when the 3 3 V or 5 0 V with current up to 200 mA can emulator is an E1 be supplied to the user system make settings with the debugger No need the host computer supplies power through the USB items Ball area 2000 points and access conditions Forced break Avail
35. rom the memory window and an option byte is read apply a reset from the debugger before continuing with execution of the program No 25 Cautionary note on connecting an emulator Description When the debugger has been started and an emulator 1s connected care must be taken over the period until the emulator generates a break in the MCU because the program in the MCU will still run automatically from the reset vector for a certain time This still applies in cases where the emulator is connected to the reset pin of the MCU The program runs for about 3 msec if the connection is JTAG and for about 140 msec if the connection is LPD while the emulator is being released from the reset state until it generates a break in the MCU This period over which the program runs is called the automatic program running period and depends on the environment of the host machine for the E1 E20 emulator Due to the specifications of the microcontrollers starting the debugger then connecting an emulator is not possible during a pin or internal reset or during periods in DeepSTOP mode To connect the emulator release the MCU from any pin reset other than from the E1 E20 emulator and ensure that an internal reset is not generated or a transition to DeepSTOP mode is not made during the automatic program running period described above When a program that generates an internal reset or causes a transition to DeepSTOP mode running on the MCU is being debugged during
36. s do not support event and trace signals from the V850 The E20 emulator has a Mictor connector as a user interface but this is not connectable to V850 user systems that have been designed according to the pin assignments in Table 2 3 R20UT1002EJ0300 Rev 3 00 Page 19 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 2 Connecting the Emulator and User System If you are using an E20 emulator use the 14 to 38 pin conversion adapter ROEOOO20OCKAOO that comes with the E20 Connect the user system QB F14T38V850 01 ROE000200CKAOO and the E20 emulator in that order Warning Regarding Connecting the E20 Emulator to the Mictor Connector If the E20 emulator is directly connected to the Mictor connector on a V850 user system the result will be the host machine the emulator and the user system emitting smoke or catching fire R20UT1002EJ0300 Rev 3 00 Page 20 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 3 Securing Debug Resources for Serial OCD Interface 3 Securing Debugging Resources for a Serial OCD Interface When a serial OCD interface debugging through a UART is in use the user must prepare the following to handle communications between the E1 E20 emulator and the target device Refer to the descriptions on the following pages and set these items in the user program or by using compiler options When using the JTAG or LPD interface the settings in this section are not required e Modification of the reset handler
37. sistor should be pulling up or pulling down 4 Pin names may vary among target devices Refer to the user s manual for the target device you are using for the actual pin names R20UT1002EJ0300 Rev 3 00 Page 13 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 2 Connecting the Emulator and User System Target device Emulator connector Noted d TRE 10k FPDRILPDIO TRST FLMDi Note2 Noted gt Motes Note3 LJ s ResetC i EVEZO 14pin eset Circuit Caution Make wiring runs between the connector and the target device as short as possible Figure 2 7 Example of Recommended Connection Both Debugging LPD and Programming UART e Make wiring runs between the 14 pin connector and target device as short as possible within 50 mm is recommended Do not connect the signal lines between the connector and MCU to other signal lines e Use GND to apply a guard ring for the wiring which runs between the 14 pin connector and target device Do not route high speed signal lines parallel to each other or allow them to cross each other e Pin names may vary among target devices Refer to the user s manual for the target device you are using for the actual pin names e Proceed with appropriate processing for pins of target devices which do not require connection to the emulator in accord with the descriptions in Handling of Unused Pins in the user s manual for the target device Notes l This conne
38. systems that may pose a direct threat to human life or bodily injury artificial life support devices or systems surgical implantations etc or may cause serious property damages nuclear reactor control systems military equipment etc You must check the quality grade of each Renesas Electronics product before using it in a particular application You may not use any Renesas Electronics product for any application for which it is not intended Renesas Electronics shall not be in any way liable for any damages or losses incurred by you or third parties arising from the use of any Renesas Electronics product for which the product is not intended by Renesas Electronics You should use the Renesas Electronics products described in this document within the range specified by Renesas Electronics especially with respect to the maximum rating operating supply voltage range movement power voltage range heat radiation characteristics installation and other product characteristics Renesas Electronics shall have no liability for malfunctions or damages arising out of the use of Renesas Electronics products beyond such specified ranges Although Renesas Electronics endeavors to improve the quality and reliability of its products semiconductor products have specific characteristics such as the occurrence of failure at a certain rate and malfunctions under certain use conditions Further Renesas Electronics products are not subject to radiation resistance desi
39. the connector and MCU to other signal lines e Use GND to apply a guard ring for the wiring which runs between the 14 pin connector and target device Do not route high speed signal lines parallel to each other or allow them to cross each other e Pin names may vary among target devices Refer to the user s manual for the target device you are using for the actual pin names e Proceed with appropriate processing for pins of target devices which do not require connection to the emulator in accord with the descriptions in Handling of Unused Pins in the user s manual for the target device Notes l This connection is designed on the assumption that the RESET signal output is from an N channel open drain buffer the output resistance is 100 Q or lower For details refer to section 2 3 2 Connecting the RESET pin 2 Refer to the datasheet of the device regarding the resistance and whether the resistor should be pulling up or pulling down 3 Pin names may vary among target devices Refer to the user s manual for the target device you are using for the actual pin names R20UT1002EJ0300 Rev 3 00 Page 15 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 2 Connecting the Emulator and User System 2 3 2 Connecting the RESET pin Connect the RESET signal as shown in Figure 2 9 if any of the conditions listed below is satisfied If none of the conditions is satisfied leave the RESET pin producing the signal output from the emula
40. to specify peripheral breaks check the manual for the debugger you are using For selecting whether peripheral breaks can be generated or not check the manual for the MCU you are using Details on setting of peripheral breaks this depends on whether the MCU you are using does or does not support the setting described e Setting the generation of peripheral breaks by the debugger The SVSTOP bit in the EPC register of the MCU is set to 1 Do not set the EPC register from the user program because the debugger sets this This setting can be enabled or disabled for individual peripheral modules by the xxxSVSDIS bit in the xxxEMU register If you require them make these settings from the user program For details check the user s manual for the MCU you are using Settings of the EPC and xxxEMU registers will not affect operation while the emulator is not connected SVSTOP bit in the EPC register XXXSVSDIS bit in the xxxEMU register Peripheral module during a break po o Operatmp A TT NNO Stopped R20UT1002EJ0300 Rev 3 00 Page 25 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 5 Notes on Usage 5 Notes on Usage Cautionary notes on using the E1 E20 emulator are given below 5 1 List Table 5 1 List of Notes on Usage 1 Handling of devices which were used for debugging 2 Condition for breaks not being usable serial OCD connection only Conditions for the pseudo real time RAM monitor RRM and DMM functions not operati
41. tor open circuit e The target device must be kept in the reset state before the debugger is started up and after the debugger is stopped e The E1 E20 emulator is being used for programming flash memory e The emulator is using the serial OCD debugging via a UART Emulator connector Target device E Reset circuit RESET OUT RESET The output from the reset circuit must be N ch open drain or a signal generated only by using resistors and capacitors Figure 2 9 Example of Connecting a Reset Circuit R20UT1002EJ0300 Rev 3 00 Page 16 of 34 Oct 01 2015 RENESAS E1 E20 Emulator 2 Connecting the Emulator and User System 2 3 3 Connecting VDD Connect VDD of the emulator connector to the power supply pin of the debugging or programming interface on the user system Use the emulator within the range of power supply voltages from 1 8 V to 5 5 V and within the operating voltage range of the MCU The power supply connected to VDD of the emulator connector draws about 10 mA for the power supplies of the first stage input buffer and final stage output buffer of the emulator If there is a possibility you will be using hot plug in you will need to configure the circuit as shown below Pin 8 VDD of the E1 E20 emulator is connected to a 4 7 uF capacitor as shown in Figure 2 10 so hot plug in connection of the emulator may lead to a momentary drop in the power supply voltage on the user system This might cause the MCU to be reset
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