APPLICATION NOTE Target Setup for the In
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1. Renesas Technology Corporation is necessary to reprint or reproduce in whole or in part these materials If these products or technologies are subject to the Japanese export control restrictions they must be exported under a license from the Japanese government and cannot be imported into a country other than the approved destination Any diversion or reexport contrary to the export control laws and regulations of Japan and or the country of destination is prohibited Please contact Renesas Technology Corporation for further details on these materials or the products contained therein2. 9 e CNVss TxD 10 P6_7 TxD1 TxD 47K S 47K nominal nominal e e 10 Pin XZ Header M30245F Vec 1 Vcc BUSY 2 P6_4 RTS1 Busy CLK 3 P6_5 CLK1 SCLK RxD 4 o P6_6 RxD1 RxD CE 5 P5_0 WRL CE EPM 6 P5_5 HOLD EPM GND 7 o Vss IRESET 8 Oo RESET CNVss 9 e CNVss TxD 10 P6_7 TxD1 TxD 47K 47K nominal 2 nominal e e ira 10 Pin Header M16C 10 Vec 1 4 Vcc BUSY 2 P1_7 CNTRO Busy CLK 3 P1_6 CLKO SCLK RxD 4 P1_5 RxDO RxD CE 5 EPM 6 GND 7 e Vss IRESET 8 OQ RESET CNVss 9 o CNVss TxD 10 P1_4 TxDO TxD 47K 47K nominal nominal Ld hd 10 Pin Z ik Header Vee nominal R8C 10 R8C 11 N Vec 1 a Vec BUSY 2 e MODE Busy CLK 3 CNVss SCLK RxD 4 P3_7 RxD1 CE 5 EPM 6 GND 7 o Vss IRESET 8 9 RESET CNVss 9 TxD 10 P0_0 TxD1 47K 47K nominal nominal Ld REU05B0060 0101Z March 2004 Page 6 of 7 M16C a g E N ESAS Target Setup for the In Circuit Debugger 10 Pi Vee M16C 62P in 10 Pin N Expanded Memory Head Header RHOLD Mod cager Vcc M16C 62P 47K nominal ode Vcc 1 Vec Vcc 1 pa Vcc1 BUSY 2 P6_4 RTS1 Bus BUSY 2 P6_4 RTS1 Busy ak s Ee eL E cLK 3 P6_5 CLK1 SCLK RxD 4 P6
3. RENESAS APPLICATION NOTE M16C Target Setup for the In Circuit Debugger 1 0 Abstract The ICD In Circuit Debugger or USB Monitor is a low cost compact interface that has two functions for Renesas M16C Flash microcontrollers 1 an in circuit debugger tool with KD30 Debugger and 2 an in system programmer with FoUSB Flash over USB Flash Programmer The following article introduces and shows examples of how to configure the target hardware with Renesas M16C Flash MCU to interface with the ICD for in circuit debugging 2 0 Introduction When used with KD30 the ICD provides an easy to use in circuit debugging environment during application development In addition when used with the FoUSB Flash Programmer it also provides an in system programming interface to the target Renesas M16C Flash MCU The ICD by taking advantage of Universal Serial Bus USB provides plug and play connectivity and fast data transfers between the computer and the M16C target board The ICD is powered by Renesas M37641 full speed USB Flash MCU which also makes it upgradeable to support future Renesas M16C MCUs Powering the ICD is user selectable USB Bus powered or Target powered When used in bus powered mode the USB bus supplies power to the ICD and target board When in target powered mode USB bus power is disconnected and the ICD sources power from the M16C target board Renesas recommends to use Target Power Mode and NOT USB Bus Power Mode
4. _6 RxD1 RxD RxD 4 a P6_6 RxD1 RxD CE 5 P5_O WRL CE OE lice PS 0 WAL AGE EPM 6 P5_5 HOLD EPM EPM 6 P5_5 HOLD EPM GND 7 e Vss GND bias IRESET 8 dq IRESET IRESET 8 Oo RESET CNVss 9 b CNVss saa es ones TxD 10 P6_7 TxD1 TxD TxD 10 P6_7 TxD1 TxD 47K 47K ark S ark a nominal nominal nominal 4 e e lt 7 Sy SE CE and EPM pin are high impedance in user mode during debug CE and EPM pins are high impedance in user mode during debug HOLD EPM pin must be pulled high in memory expansion mode Note If you cannot find your M16C Flash MCU in the examples shown please contact Renesas representative for assistance 4 0 Conclusion The ICD is an easy to use interface for setting up an M16C MCU development environment to support in circuit debugging It does not require a lot of resources from the target board Correct hardware connectivity will guarantee proper operation 5 0 Reference Renesas Technology Corporation Semiconductor Home Page http www renesas com E mail Support support _apl renesas com User s Manual e RTA FoUSB MON User s Manual e Target Setup for FOUSB Programmer App Note e Firmware Requirements for In Circuit Debugger Support App Note REU05B0060 0101Z March 2004 Page 7 of 7 Keep safety first in your circuit designs Renesas Technology Corporation puts the maximum effort into making semiconductor products better and more reliable but the
5. de to supply power to your non SKP target board 2 The ICD ships with a 6 mini USB cable to connect to your PC and a 6 10 pin flat ribbon target cable to connect to the M16C target board 3 The ICD requires 5V for re programming if a new MCU file MMI needs to be downloaded to the ICD i e when the target MCU selected does not match the MCU file on the ICD To accomplish this disconnect the ICD from the target set to Bus Power Mode and then download new MCU file After MCU file has been downloaded switch back to Target Power Mode REU05B0060 0101Z March 2004 Page 2 of 7 M16C a g E N ESAS Target Setup for the In Circuit Debugger 3 0 Target Hardware Connectivity for In Circuit Debugging This section describes the hardware connections to the ICD for in circuit debugging operations Examples for different M16C MCU s are shown at the end of the section For target MCU resources used during in circuit debugging see reference section for details The ICD connects to an M16C target board through a polarized 100 2 54mm 10 pin connection using a flat ribbon cable It communicates with the M16C MCU using the boot UART SIO in a clocked SIO configuration The signals used and how these signals are assigned is described below TXD 10 e o 9 CNVss RESET 8 e o 7 GND EM 6 5 CE RXD 4 e 3 SCLK BUSY 2 e E 1 Vcc Figure 3 Target Board 10 Pin Header Connector Signal Assignment Note All target
6. interface lines are in high impedance state until instructed to do otherwise by the KD30 Debugger application 3 1 Vcc Power Supply Pin This provides the common connection point for power between ICD and the target board This must be connected to the target board s Vcc line plane In Target Power mode the ICD requires at least 3 3V and 45mA to operate properly The ICD requires 5V when downloading new MCU Monitor Image MMI 3 2 Busy Target MCU SIO Busy Signal This line indicates whether the target is busy and cannot receive data or not This must be connected to the target MCU s boot UART SIO BUSY CTS RTS pin This pin cannot be used while the ROM monitor is running during in circuit debug operations 3 3 SCLK Target MCU Serial Clock Signal This clock is used for synchronous serial communication between ICD and target board This must be connected to the target MCU s boot UART SIO SCLK pin This pin cannot be used while the ROM monitor is running during in circuit debug operations REU05B0060 0101Z March 2004 Page 3 of 7 M16C E g E N ESAS Target Setup for the In Circuit Debugger 3 4 RXD Target MCU Receive Data Input Signal ICD Transmit Data Output Signal This is the ICD SIO transmit data output This must be connected to the target MCU s boot UART SIO receive data input RXD pin This pin cannot be used while the ROM monitor is running during in circuit debug operations 3 5 CE Pin Thi
7. istributor for the latest product information before purchasing a product listed herein The information described here may contain technical inaccuracies or typographical errors Renesas Technology Corporation assumes no responsibility for any damage liability or other loss rising from these inaccuracies or errors Please also pay attention to information published by Renesas Technology Corporation by various means including the Renesas Technology Corporation Semiconductor home page http www renesas com When using any or all of the information contained in these materials including product data diagrams charts programs and algorithms please be sure to evaluate all information as a total system before making a final decision on the applicability of the information and products Renesas Technology Corporation assumes no responsibility for any damage liability or other loss resulting from the information contained herein Renesas Technology Corporation semiconductors are not designed or manufactured for use in a device or system that is used under circumstances in which human life is potentially at stake Please contact Renesas Technology Corporation or an authorized Renesas Technology Corporation product distributor when considering the use of a product contained herein for any specific purposes such as apparatus or systems for transportation vehicular medical aerospace nuclear or undersea repeater use The prior written approval of
8. n point where the ICD ground and target board ground planes can be connected This must be connected to target board s GND line plane 3 8 RESET Target MCU Reset Signal This active low signal is used by the ICD to reset the target MCU This must be connected to the target board s reset circuit or target MCU s reset pin The user must ensure that the ICD can drive the pin to a valid low level with 5mA current REU05B0060 0101Z March 2004 Page 4 of 7 M16C E g E N ESAS Target Setup for the In Circuit Debugger 3 9 CNVss Target MCU CNVss Pin This active high signal is used by the ICD to control the target MCU s CNVss pin for programming purposes This must be connected to the target MCU s CNVss pin During normal operation this pin must have a low signal To accomplish this connect a 10K nominal pull down resistor See M16C MCU datasheet on CNVss pin description for details 3 10 TXD Target MCU Transmit Data Output Signal ICD Receive Data Input Signal This is the ICD SIO receive data input This must be connected to the target M16C MCU s boot UART SIO transmit data output TXD pin This pin must be pulled down with a resistor connected to GND The target MCU s ROM monitor polls this pin for the presence of the ICD before running the user program Without the pull down resistor the target MCU will only run the ROM monitor program This pin cannot be used while the ROM monitor is running during in circui
9. re is always the possibility that trouble may occur with them Trouble with semiconductors may lead to personal injury fire or property damage Remember to give due consideration to safety when making your circuit designs with appropriate measures such as i placement of substitutive auxiliary circuits ii use of nonflammable material or iii prevention against any malfunction or mishap Notes regarding these materials These materials are intended as a reference to assist our customers in the selection of the Renesas Technology Corporation product best suited to the customer s application they do not convey any license under any intellectual property rights or any other rights belonging to Renesas Technology Corporation or a third party Renesas Technology Corporation assumes no responsibility for any damage or infringement of any third party s rights originating in the use of any product data diagrams charts programs algorithms or circuit application examples contained in these materials All information contained in these materials including product data diagrams charts programs and algorithms represents information on products at the time of publication of these materials and are subject to change by Renesas Technology Corporation without notice due to product improvements or other reasons It is therefore recommended that customers contact Renesas Technology Corporation or an authorized Renesas Technology Corporation product d
10. s pin is used to enter boot mode for programming of the target M16C MCU Not all M16C MCU s have a CE pin If a CE pin exists on the target MCU it should be connected to this pin refer to serial mode flash programming in the target MCU s datasheet If not leave pin unconnected This pin is in high impedance when in user mode during debug operations If the target MCU s CE pin is used as input isolate the driving circuit from the header connection with a 1Kohm resistor If to be left unconnected if users decides to care must be taken to ensure that the target MCU s CE pin has a high signal level using a pull up resistor during any programming operations 3 6 EPM Pin The pin is used to control target MCU s EPM pin if it exists on the target MCU EPM pin is used during programming of the target MCU If this pin exists on the target MCU and in Target Powered mode it should be connected to the header refer to serial mode flash programming of the target MCU s datasheet If not leave pin unconnected If the target MCU s EPM pin is used as input isolate the driving circuit from the header connection using a 1Kohm resistor If the EPM pin of the M16C MCU is left unconnected no external circuit and not connected to 10 pin header care must be taken to ensure that the target MCU s EPM pin has a low signal level using a pull down resistor during any programming operations 3 7 GND Ground Pin This provides the commo
11. t debug operations 3 11 Hardware Summary and Precautions e Connect pull down resistors to RXD and CNVss lines e Connect Reset line to the target MCU Reset pin or the target board s reset circuit e If EPM or CE lines are used as input pins isolate the driving circuit from the 10 pin header using a 1Kohm resistor e If possible avoid using the boot SIO UART pins for other purposes e Table 1 lists the M16C Flash MCU s supported CE or EPM pin support the boot UART SIO DBC interrupt support and the number of breakpoints that can be set in KD30 REU05B0060 0101Z March 2004 Page 5 of 7 2CENESAS M16C Target Setup for the In Circuit Debugger Table 1 M16C MCU Support Summary M16C MCU CE EPM Pin Boot UART SIO DBC Irq Support Breakpoints M16C 10 M30245FC M16C 26 M16C 28 M16C 29 M3062GF8N M16C 62P 6N M306V7FG R8C 10 11 None UARTO Examples of target board hardware connection to 10 pin header ICD when used for debugging purposes only If you cannot find your M16C Flash MCU in the examples shown please contact Renesas representative for assistance edie M16C 26 M16C 28 Cee ois M16C 29 Vec 1 pa Vcc BUSY 2 P6_4 RTS1 Busy CLK 3 P6_5 CLK1 SCLK RxD 4 e P6_6 RxD1 RxD CE 5 P8_6 XCout CE EPM 6 GND 7 R Vss IRESET 8 Oo RESET CNVss
12. when connected to non Renesas SKP target boards If you plan to use the ICD to supply power to non SKP boards please contact Renesas representative for details and assistance Aside from a standalone kit RTA FOoUSB MON the ICD comes included with the following Renesas Starter Kits e MSV30102 SKP e MSV30262 SKP e MSV30245 SKP e M16C System Evaluation Kit e SKP16C26 e SKP16C28 e SKP16C62P e SKP8CMini REU05B0060 0101Z March 2004 Page 1 of 8 M16C E g E N ESAS Target Setup for the In Circuit Debugger PC with Windows 98 2000 Me or XP and available USB port Cureton Target Board RT A FollSB MOH ty 10 Fin RTA Fatt Beit MERE Connection Pen pe ee Se USE Figure 1 ICD System Connectivity A picture of the ICD with key components indicated is shown below 10 pin Polarized en a da Connector to M16C Target Board TARGET USB ENESAS Power Mode USE PC STOP RUN STATUS POWER RTA FoUSB MON Flash Programmer amp In Circult Debugger TARGET Mini USB Connector LED s Red Target Stopped Green Target Running Yellow USB Monitor Status Red Power Figure 2 ICD or USB Monitor Note 1 The USB Bus Power Mode was designed to supply power to Renesas SKP boards If non Renesas SKP boards i e customer developed M16C board are used as target boards use the ICD in Target Power mode Contact your Renesas representative if you plan to use the ICD in Bus Power mo
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