Renesas Starter Kit for R8C/23 User`s Manual
Contents
1. Serial Connector Option l l 1 l 1 awa sw2 SW RES l BO l 1 d l sjeuBls ULOOd 8 LOOS OT Switches eae pi NNNNN LCD Display Potentiometer Data x4 User LED x4 POWER Green Control x2 1Green 1Orange 2Red N 1 l LEDs BOOT Orange Figure 5 1 Block Diagram Figure 5 2 is representative of the connections required to the Renesas Starter Kit USB Cable o L lfe o 0 0 cu Boars Figure 5 2 Renesas Starter Kit Connections Chapter 6 User Circuitry 6 1 Switches There are four switches located on the board The function of each switch and its connection are shown in Table 6 1 Switch Function Microcontroller RES When pressed the board microcontroller is reset RESET Pin7 SW1 BOOT Connects to an IRQ input for user controls INTO Pin25 The switch is also used in conjunction with the RES switch to place Port 4 pin 5 the device in BOOT mode when not using the E8a debugger SW2 Connects to an IRQ input for user controls INT1 Pin20 Port1 pin 7 SW3 Connects to a Key In Interrupt input for user controls KI3 Pin24 Port 1 pin 3 Table 6 1 Switch Functions R efer to schematic for detailed connectivity information 6 2 LEDs There are six LEDs on the CPU board The green POWER LED lights when the board is2. Timer Output TMRI 32 21 Timer Input TRIGa 25 22 Timer Input TRIGb 20 23 Interrupt IRQ2 21 24 Tristate Control TRISTn 2 25 SPARE P2 0 19 26 SPARE P31 31 Table 9 7 below show the LIN header connections J9 Pin Function Signal Name 1 Power Supply for LIN module VBAT 2 Ground Ground J10 Pin Function Signal Name 1 Power Supply for LIN module VBAT 2 LIN Bus Line LIN 3 Ground Ground Table 9 7 LIN Headers Table 9 8 below show the CAN header connections J 12 Pin Functions Signal Name 1 CANO Positive CANH 2 Ground Ground 3 CANO Negative CANL Table 9 8 CAN Header Chapter 10 Code Development 10 1 Overview Note For all code debugging using Renesas software tools the Renesas Starter Kit board must be connected to a Personal Computer USB port via an E8a An E8a is supplied with the Renesas Starter Kit product 10 2 Mode Support High performance Embedded Workspace connects to the Microcontroller and programs it via the E8a Mode support is handled transparently to the user 10 3 Breakpoint Support High performance Embedded Workshop supports breakpoints on the user code both in RAM and ROM Double clicking in the breakpoint column in the code sets the breakpoint Breakpoints will remain unless they are double clicked to remove them 20 10 4 Memory Map 00000h 002FFh 00400h Internal RAM OODFFh 02400h Internal R
3. Microcontroller Headers ciot E AO DAO LE OA e i a it at d a d LAJ 16 9 2 Appiication E EE 18 Chapter 10 Code Development A 20 10 Ee 20 10 2 Mode Support sss A 20 10 3 Breakpolnt SUPPOitomtasctaar triada dal tensa 20 0A Memory Map oi A Eee 21 Chapter 11 Component Placement 22 Chapter 12 Additional Information esiisa iid aieiaa nenea An aaa nana aaa 23 Chapter 1 Preface Cautions This document may be wholly or partially subject to change without notice All rights reserved Duplication of this document either in whole or part is prohibited without the written permission of Renesas Solutions Corp Trademarks All brand or product names used in this manual are trademarks or registered trademarks of their respective companies or organisations Copyright ORenesas Solutions Corp 2007 All rights reserved ORenesas Technology Europe Ltd 2007 All rights reserved ORenesas Technology Corp 2007 All rights reserved Website http www eu renesas com Europe htto www renesas com Global Glossary ADC Analog Digital Converter IRQ Interrupt ReQuest CAN Controller Area Network LCD Liquid Crystal Display CPU Central Processing Unit LED Light Emitting Diode DAC Digital Analog Converter LIN Local Interconnect Network E8a E8a On chip debugger module LSI Large Scale Integration HEW High performance Embedded Workshop MCU Microcontroller Chapter 2 Purpose This Renesas Starter Kitis an evaluation tool for Renesas microcontrol
4. powered The orange BOOT LED indicates the device is in BOOT mode when lit The four user LEDs are connected to an IO port and will light when their corresponding port pin is set low Table 6 2 below shows the LED pin references and their corresponding microcontroller port pin connections LED Reference Colour Microcontroller Port Pin function Microcontroller Pin As shown on silkscreen Number LEDO Green Port 2 4 15 LED Orange Port 2 5 14 LED2 Red Port 2 6 13 LED3 Red Port2 7 12 Table 6 2 LED Port 6 3 Potentiometer A single turn potentiometer is connected to AN8 P 1 0 of the microcontroller This may be used to vary the input analog voltage value to this pin between VREF and Ground 6 4 Serial port The microcontroller programming serial port 1 is connected to the RS 232 transceiver This serial port can optionally be connected to the RS232 transceiver as well by fitting option resistors The connections to be fitted are listed in the Table 6 3 Description Function Fit for RS232 TxD1 Programming Serial Port R45 RxD1 Programming Serial Port R46 Table 6 3 Serial Port settings A Secondary serial port is connected to the application headers This is shared with the LIN module 6 5 LCD Module A LCD module is supplied to be connected to the connector 8 This should be fitted so that the LCD module lies over 1 Care should be taken to en
5. 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 LENESAS C 7 D me d lt D D Renesas Starter Kit for R8C 23 User s Manual RENESAS 16 BIT SINGLE CHIP MICROCOMPUTER M16C FAMILY R8C Tiny SERIES Renesas Electronics Rev 2 00 2007 08 www renesas com Table of Contents Chapter ts Pra a 1 Ghapter 2 Purpose lt A ein eave ene eee 2 Ghapter 3 Power Supply ibid Ante ita ESA dd ALAJ 3 BEF e ETC 3 sic Power Up Bemaviour icon da Di aaa Da a Eege E AR ea a 0 0 ee Des 3 Ghapter 4 Board LayoUt sin NO LEN NM NA SSE dE 4 4 1 Component EE 4 4 2 Board DIMENSIONS pi ti ae ku ak AL LO eed 5 Chapter 5 sj ele Diagram Pr a a a 0 a nr rn en rr ati rn rm Eege 6 Ghapter6 UsenQIICUIIV sss A AL avai 0 0 0 aa dite Nee d Da 7 en RTE NT it NTA LK EI MEN E Eo Eto H 6 2 BEE 7 6 3 Potentiometer eebe ees ao ee aia T 6 4 Serial port EE 8 er ER OI 8 Elena EE Lui 9 TE eer 13 6 8 te 13 6 9 LIN Minn EE 13 6 10 GANilntertace se p NKTA TA AAA 13 NET ee lelo keep po ree aa aa po oro rno rne PO um mO pO pn o mn ramp nr rn nm PO 14 J to BOL MOS ss aa A LK OL Ten lA I pa cita lek ce LAO 14 Kiel CIP Neie 14 Chapter 8 Programming Methode 15 Chapter EE 16 9 1
6. 4 Sub clock Table 6 6 Clock Configuration Links Table 6 7 below describes the function of the option links associated with Serial configuration The default configuration is indicated by BOLD text Option Link Settings Reference Function Fitted Alternative Removed Related To R44 RS232 Serial Disables RS232 Serial Enables RS232 Serial R45 R46 Transceiver Transceiver R45 Programming Serial Connects R 232 port to Disconnected Port Programming Serial Port R46 Programming Serial Connects R 232 Port to Disconnected Port Programming Serial Port Table 6 7 Serial Configuration Links Table 6 8 below describes the function of the option links associated with LIN configuration The default configuration is indicated by BOLD text Option Link Settings Reference Function Fitted Alternative Removed Related To R56 LIN For Master node setting For Slave node setting R59 R60 R61 R59 LIN Connects LIN NSLP to MCU Disconnected R56 R60 R61 port Pl 6 R60 LIN Connects LIN RXDO to MCU Disconnected R56 R59 R61 port P1 5 R61 LIN Connects LIN TXDO to MCU Disconnected R56 R59 R60 port P1 4 Table 6 9 below describes the function of the option links associated with CAN configuration The default configuration is indicated by Table 6 8 LIN Configuration Links BOLD text Option Link Settings Reference Function Fitted A
7. Board_VCC Board_VCC R23 MCU Power Supply Supply to MCU Fit Low ohm resister to R20 R21 R22 measure current R30 User UO Power Supply Connects Board VCC to Board VCC disconnected from SW2 3 and LEDO 3 SW2 3 and LEDO 3 Table 6 5 Power Configuration Links Table 6 6 below describes the function of the option links associated with Clock configuration The default configuration is indicated by BOLD text Option Link Settings Reference Function Fitted Alternative Removed Related To R8 Oscillator Connects external clock to Connects X1 to MCU R10 R11 R12 Main clock MCU R10 Oscillator Connects external clock to Connects X1 to MCU R8 R11 R12 Main clock MCU R11 Oscillator Connects X1 to MCU Connects external clock to R8 R10 R12 Main clock MCU R12 Oscillator Connects X1 to MCU Connects external clock to R8 R10 R11 Main clock MCU R13 Oscillator Do not fit the option resistor MCU port P4_3 connects to R14 R15 R16 R17 Sub clock MCU header R14 Oscillator Do not fit the option resistor MCU port P4 4 connects to R13 R15 R16 R17 Sub clock MCU header R15 Oscillator MCU portP4_3 connects to Do not remove the option R13 R14 R16 Sub clock MCU header resistor R16 Oscillator MCU port P4 4 connects to Do not remove the option R13 R14 R15 Sub clock MCU header resistor R17 Oscillator Do not fit the option resistor Do not fit the option resistor R13 R1
8. OM Data Flash O2BFFh Reserved area 04000h OFFDCh OFFE4h Internal ROM Program ROM OFFEFh OFFF4h OFFDCh Fixed Vector Tables OFFFEh OFFFFh PSS FFF Figure 10 1 Memory Map 21 Chapter 11 Component Placement JA 3734 3 13 11 R24 LI Ly 3 oVDE JO p DEBT E ZI to A BEd GF F FY Ord J a col R14 11022 oe TM se 2 E RIZICZI AN alae rl LE R26 y C4 RU LEE RIO RI2 LE R H Uz R4 5 J 6J R29 BOY i Gu ol AP CIO L20 H Za 2 ze Roe Roo HO Rod Ki Ri C2 C3 N d P NI 207 Y J gt fA E E R2 CIO boor F28 LEDI RG8 LEDATRS7 LED R36 LEDO Res Hover R34 HE EE A R30 RZO ROG 617 Rad RI Swag 7 SWI BOOTG Figure 11 1 Component Place
9. To our customers Old Company Name in Catalogs and Other Documents On April 1 2010 NEC Electronics Corporation merged with Renesas Technology Corporation and Renesas Electronics Corporation took over all the business of both companies Therefore although the old company name remains in this document itis a valid Renesas Electronics document We appreciate your understanding Renesas Electronics website http www renesas com April 1 2010 Renesas Electronics Corporation Issued by Renesas Electronics Corporation http www renesas com Send any inquiries to http www renesas com inquiry ENESAS 8 10 11 12 Notice All information included in this document is current as of the date this document is issued Such information however is subject to change without any prior notice Before purchasing or using any Renesas Electronics products listed herein please confirm the latest product information with a Renesas Electronics sales office Also please pay regular and careful attention to additional and different information to be disclosed by Renesas Electronics such as that disclosed through our website Renesas Electronics does not 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
10. ections Marked pins are subject to option links Table 9 6 J A2 Standard Generic Header 18 JAl Pin Header Name Circuit Net Device Pin Header Name Circuit Net Device Name Pin Name Pin 1 Regulated Supply 1 CON 5V 2 Regulated Supply 1 Ground 3 Regulated Supply 2 CON 3V3 4 Regulated Supply 2 Ground 5 Analogue Supply NC 6 Analogue Supply NC 7 Analogue Reference CON_VREF 40 8 ADTRG NC 9 ADCO ADO 36 10 ADCI1 AD1 37 11 ADC2 AD2 38 12 ADC3 AD3 39 13 DACH NC 14 DACI NC 15 0Portd 0 0 41 16 IOPortl 101 43 17 IOPort2 IO 2 42 18 IOPort3 IO 3 35 19 IOPort4 IO 4 34 20 IOPort5 10 5 33 21 IOPort6 IO 67 26 22 IOPort7 OT 21 23 IRQ3 IRQ3 24 24 12C Bus 3rd pin NC 25 PC Bus IIC SDA 3 26 C Bus IIC SCL 1 Table 9 5 J A1 Standard Generic Header JA2 Pin Header Name Circuit Net Device Pin Header Name Circuit Net Device Name Pin Name Pin 1 Reset RESn 1 2 External Clock Input CON XIN 10 3 Interrupt NC 4 Regulated Supply 1 GND 5 WDT overflow NC 6 Serial Port SClaTX 23 7 Interrupt IRQO 25 8 Serial Port SClaRX 22 9 Interrupt IRQ1 26 10 Serial Port SClaCK 21 11 Motor up down MO UD 48 12 Serial Port Handshake NC 13 Motor control MO Up 18 14 Motor control MO Un 16 15 Motor control MO_Vp 15 16 Motor control MO Vn 13 17 Motor control MO Wp 14 18 Motor control MO Wn 12 19 Timer Output TMRO 17 20
11. ering up the board the user LEDs will start to flash After 200 flashes or after pressing a switch the LEDs will flash ata rate controlled by the potentiometer Chapter 4 Board Layout 4 1 Component Layout The following diagram shows the top layer component layout of the board Application Board Interface Reset Switch RS232 Serial Debug LCD Power Power LED Microcontroller Pin Headers 41 to J4 E8a Header User LEDs Power Connector for LIN CAN Connector LIN Connector Boot LED User Boot Switch User Switches Application Board Interface Potentiometer Figure 4 1 Board Layout 4 2 Board Dimensions The following diagram gives the board dimensions and connector positions All through hole connectors are on a common 0 1 grid for easy interfacing sn CA o EI o 45 00mm A A A 14 00mm oO N EN Sla 3 Slo 3 JE 3 5 3 Vv w w 27 00mm K 50 80mm 4 80 00mm 4 85 00mm Figure 4 2 Board Dimensions Chapter 5 Block Diagram Figure 5 1 is representative of the CPU board components and their connectivity Power Jack Option BOOT Application Board Boot mode pin Circuitry Interface Microcontroller Pin RESET pin D type Headers r Latch Microcontroller E8a LIN Connector IRQ pins Power Connector for LIN DC Input 1 0 CAN Connector EZ
12. esas 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 products are classified according to the following three quality grades Standard High Quality and Specific The recommended applications for each Renesas Electronics product depends on the product s quality grade as indicated below 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 categorized as Specific without the prior written consent of Renesas Electronics Further you may not use any Renesas Electronics product for any application for which it is not intended without the prior written consent of Renesas Electronics 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 an application categorized as Specific or for which the product is not intended where you have failed to obtain the prior written consent of Renesas Electronics The quality grade of each Renesas Electronics product is Standard unless otherwise expressly specified in a Renesas Electronics data sheets or data books etc Standard Computers office equ
13. 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 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 When exporting the 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 You should not use Renesas Electronics products or the technology described in this document for any purpose relating to military applications or use by the military including but not limited to the development of weapons of mass destruction 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 Renesas Electronics has used reasonable care in preparing the information included in this document but Ren
14. in use conditions Further Renesas Electronics products are not subject to radiation resistance design 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 system 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 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
15. ipment communications equipment test and measurement equipment audio and visual equipment home electronic appliances machine tools personal electronic equipment and industrial robots High Quality Transportation equipment automobiles trains ships etc traffic control systems anti disaster systems anti crime systems safety equipment and medical equipment not specifically designed for life support Specific Aircraft aerospace equipment submersible repeaters nuclear reactor control systems medical equipment or systems for life support e g artificial life support devices or systems surgical implantations or healthcare intervention e g excision etc and any other applications or purposes that pose a direct threat to human life 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 certa
16. lers Features include Renesas Microcontroller Programming User Code Debugging User Circuitry such as Switches LEDs and potentiometer s User or Example Application Sample peripheral device initialisation code The Renesas Starter Kit board contains all the circuitry required for microcontroller operation NOTE This manual describes the technical details of the Renesas Starter Kit for R8C 23 hardware The Quick Start Guide and Tutorial Manual provide details of the software installation and debugging environment Chapter 3 Power Supply 3 1 Requirements This Renesas Starter Kit operates from a 3V to 5V power supply A diode provides reverse polarity protection only if a current limiting power supply is used All Renesas Starter Kit boards are supplied with an E8a debugger This product is able to power the Renesas Starter Kit board with up to 300mA When the Renesas Starter Kitis connected to another system then that system should supply power to the Renesas Starter Kit All Renesas Starter Kit boards have an optional centre positive supply connector using a 2 1mm barrel power jack Warning The Renesas Starter Kit is neither under nor over voltage protected Use a centre positive supply for this board 3 2 Power Up Behaviour When the Renesas Starter Kitis purchased the Renesas Starter Kitboard has the Release or stand alone code from the example tutorial code pre programmed into the Renesas microcontroller On pow
17. lternative Removed Related To R62 CAN Connects termination resistor Disconnected R64 R66 R65 to CAN bus line J11 R64 CAN Connects CANOOUT to MCU Disconnected R62 R66 port P6_1 R66 CAN Connects CANOIN to MCU Disconnected R62 R64 port P6_2 Table 6 10 below describes the function of the option links associated with Analog configuration The default configuration is indicated by Table 6 9 CAN Configuration Links BOLD text Option Link Settings Reference Function Fitted Alternative Removed Related To R7 ADC Connects CON_VREF CON_VREF disconnected from R19 Reference Voltage to MCU MCU R19 ADC Connects CON_VREF to CON_VREF disconnected from R7 Board_VCC Board_VCC Table 6 10 Analog Configuration Links 11 Table 6 11 below describes the function of the option links associated with microcontroller pin function select configuration The default configuration is indicated by BOLD text Option Link Settings Reference Function Fitted Alternative Removed Related To R50 MCU Pin Function Connects IRQ1 to MCU port Disconnected R51 Select P6 6 R51 MCU Pin Function Connects IO 6 to MCU port Disconnected R50 Select P6 6 R52 MCU Pin Function Connects IRQ2 to MCU port Disconnected R53 Select P67 R53 MCU Pin Function Connects IO 7 to MCU port Disconnected R52 Select P67 R54 MCU Pin Function Connects IRQO to MCU port Di
18. ment 22 Chapter 12 Additional Information For details on how to use High performance Embedded Workshop refer to the High performance Embedded Workshop manual available on the CD or from the web site For information about the R8C 23 group microcontrollers refer to the R8C 22 Group R8C 23 Group Hardware Manual For information about the R8C 23 assembly language refer to the R8C Tiny Series Software Programming Manual Online technical support and information is available at http www renesas com renesas_starter_kits Technical Contact Details America techsupport rta renesas com Europe tools support euQ renesas com Japan csc renesas com General information on Renesas Microcontrollers can be found on the Renesas website at http www renesas com 23 Renesas Starter Kit for R8C 23 User s Manual Publication Date Rev 2 00 Aug 31 2007 Published by Renesas Solutions Corp 4 1 6 Miyahara Yodogawa ku Osaka City 532 0003 Japan 02007 Renesas Solutions Corp Renesas Technology Europe Ltd and Renesas Technology Corp All Rights Reserved Renesas Starter Kit for R8C 23 User s Manual TLTENESAS Renesas Electronics Corporation 1753 Shimonumabe Nakahara ku Kawasaki shi Kanagawa 211 8668 Japan REJ10J1245 0200
19. ocontroller pins Marked pins are subject to option links J1 Pin Circuit Net Name Device Pin Circuit Net Name Device Pin Pin 1 No Connection 2 IC SCL 1 3 TRISTn 2 4 IC SDA 3 5 MODE E8B 4 6 RING P4 3 5 7 RING P4 4 6 8 RESn 7 9 CON_XOUT 8 10 VSS 9 11 CON XIN 10 12 UC VCC 1 13 MO Wn 12 14 No Connection Table 9 1 J 1 J2 Pin Circuit Net Name Device Pin Circuit Net Name Device Pin Pin 1 MO Vn 13 2 MO Wp 14 3 MO Vp 15 4 MO Un 16 5 TMRO 17 6 MO Up 18 7 P20 19 8 TRIGb 20 9 SClaCK 21 10 SClaRX 22 11 SClaTX 23 12 IRQ3 24 13 No Connection 14 No Connection Table 9 2 J 2 J3 Pin Circuit Net Name Device Pin Circuit Net Name Device Pin Pin 1 IRQO TRIGa 25 2 IRQ1 10_6 26 3 IRQ2 10_7 21 4 LCD E 28 5 LCDRS 29 6 AD POT 30 JM P3 1 31 8 TMR1 32 9 10_5 33 10 10_4 34 11 10 3 35 12 ADO 36 13 No Connection 14 No Connection Table 9 3 J 3 J4 Pin Circuit Net Name Device Pin Circuit Net Name Device Pin Pin 1 No Connection 2 ADI 37 3 AD2 38 4 AD3 39 5 P4 2NREF 40 6 IO 41 7 102 42 8 Q1 43 9 LCD D7 A4 10 LCD D6 45 11 LCD D5 46 12 LCD D4 47 13 MO UD 48 14 No Connection Table 9 4 J 4 9 2 Application Headers Table 9 5 and Table 9 6 below show the standard application header conn
20. of the boot switch on pressing the reset button This control is subsequently used to modify the MODE pin states as required The MODE pin should change state only while the reset signal is active to avoid possible device damage The reset is held in the active state for a fixed period by a pair of resistors and a capacitor Please check the reset requirements carefully to ensure the reset circuit on the customers board meets all the reset timing requirements 6 9 LIN Interface This Renesas Starter Kit has hardware LIN interface The interface is available on connector 10 The connector J 9 functions as power connector for LIN The device can be operated either in Master node or Slave node The device performs LIN communication in cooperation with Timer RA and UARTO For mode details on LIN interface please refer to R8C 23 Group Hardware Manual 6 10 CAN Interface This Renesas Starter Kit has CAN interface The interface is available on connector 12 For mode details on LIN interface please refer to R8C 23 Group Hardware Manual 13 Chapter 7 Modes The Renesas Starter Kit supports Boot mode and Single chip mode Details of programming the FLASH memory is described in the R8C 23 Group Hardware Manual 7 1 Boot mode The Boot mode settings for this Renesas Starter Kit are shown in Table 7 1 Boot Mode pin settings below MODE LSI State after Reset End LOW Boot Mode Table 7 1 Boot Mode pin
21. sconnected R31 R55 Select P45 R55 MCU Pin Function Connects TRIGa to MCU port Disconnected R31 R54 Select P45 Table 6 11 MCU Pin Function Select Configuration Links Table 6 12 below describes the function of the option links associated with other options The default configuration is indicated by BOLD text Option Link Settings Reference Function Fitted Alternative Removed Related To R31 SW1 Connects SW1 to MCU port Disconnected R54 R55 P45 R47 E8a Enables E8a Connection Do not fit the option resistor Table 6 12 Other Option Links 6 7 Oscillator Sources A crystal oscillator is fitted on the board and used to supply the main clock input to the Renesas microcontrolle Table 6 13 Oscillator details the oscillators that are fitted and alternative footprints provided on this board Component Crystal X1 Fitted 20 MHz HC 49U package Table 6 13 Oscillator 6 8 Reset Circuit The CPU Board includes a simple latch circuit that links the mode selection and reset circuit This provides an easy method for swapping the device between Boot Mode and Single Chip Mode This circuit is not required on customers boards as it is intended for providing easy evaluation of the operating modes of the device on the Renesas Starter Kit Please refer to the hardware manual for more information on the requirements of the reset circuit The Reset circuit operates by latching the state
22. settings The software supplied with this Renesas Starter Kitsupports Boot mode using an E8a and High performance Embedded only However hardware exists to enter boot mode manually do not connect the E 8a in this case Press and hold the SW1 BOOT The MODE pin is held in its boot state while reset is pressed and released Release the boot button The BOOT LED will be illuminated to indicate that the microcontroller is in boot mode When neither the E8a is connected nor the board is placed in boot mode as above the MODE pin is pulled high by a 4 7k resistor When an E8a is used the MODE pin is controlled by the E8a 7 2 Single chip mode Because the MODE pin is pulled high this Renesas Starter Kit will always bootin Single chip mode when the E8a is not connected and the boot switch is not depressed Refer to R8C 23 Group Hardware Manual for details of Single chip mode MODE LSI State after Reset End High Single chip Mode Table 7 2 Single chip Mode pin settings Chapter 8 Programming Methods The board is intended for use with High performance Embedded Workshop and the supplied E8a debugger Refer to R8C 23 Group Hardware Manual for details of programming the microcontroller without using these tools 15 9 1 Microcontroller Headers Table 9 1 to Table 9 4 show the microcontroller pin headers and their corresponding microcontroller connections The header pins connect Chapter 9 Headers directly to the micr
23. sure the pins are inserted correctly into J 8 The LCD module uses a 4 bit interface to reduce the pin allocation No contrast control is provided this is setby a resistor on the supplied display module The module supplied with the Renesas Starter Kit only supports 5V operation Table 6 4 shows the pin allocation and signal names used on this connector J8 Pin Circuit Net Name Device Pin Circuit Net Name Device Pin Pin 1 Ground 2 5V Only 3 No Connection 4 LCD_RS 29 5 R W Wired to Write only 6 LCD E 28 7 No Connection 8 No Connection 9 No Connection 10 No Connection 11 LCD Di 4 12 LCD 5 46 13 LCD D6 45 14 LCD 7 44 Table 6 4 LCD Module Connections 6 6 Option Links Table 6 5 below describes the function of the option links associated with Power configuration The default configuration is indicated by BOLD text Option Link Settings Reference Function Fitted Alternative Removed Related To R18 Power Supply Connects J 5 to Board VCC J 5 disconnected from R20 Borad VCC R20 Power Supply Connects Board VCC to Board VCC disconnected from R18 R19 R21 board voltage line board voltage line R22 R23 R21 Power Supply Connects CON 5V External CON 5V disconnected from R20 R22 R23 External 5V 5V to Board VCC Board VCC R22 Power Supply Connects CON 3V3 External CON 3V3 disconnected from R20 R21 R23 External 3 3V 3 3V to
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