Renesas R8C/25 User's Manual
Contents
1. Pin Circuit Net Name Device Pin Circuit Net Name Device Pin Pin 1 IRQO TRIGa 27 2 IRQ1 10_6 28 3 IRQ2 O 7 29 4 LCD E 30 5 LCD RS 31 6 AD_POT 32 7 P3 1 33 8 TMR1 34 9 10 5 35 10 10 4 36 11 10 3 37 12 ADO 38 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 AD1 41 3 AD2 42 4 AD3 43 5 P4 44 6 IO 0 45 71 102 46 8 10_1 47 9 LCD DI 48 10 LCD_D6 49 11 LCD D5 50 12 LCD_D4 51 13 MO UD 52 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 connections Marked pins are subject to option links JA1 Pin Header Name RSK Signal Device Pin Header Name RSK Signal 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 1 Analogue Reference CON_VREF 44 8 ADTRG NC 9 ADCO ADO 38 10 1 AD1 41 11 02 AD2 42 12 3 AD3 43 13 DACH NC 14 DAC1 NC 15 0 10_0 45 16 15 OI 47 17 2 02 46 18 323 03 37 19 584 I0 4 36 20 65 I0 5 35 21 8586 IO 6 28 22 IOPort7 Io 7 29 23 IRQ3 IRQ3 25 24 12C Bus 3rd pin NC 25 11720 Bus WC SDA 4 26 PC Bus WC SCL 2 Table 9 5 J A1 Standard Generic Header JA2 Pin He2. R8C 25 Microcontroller do not R8C 25 Microcontroller do not have CAN function have CAN function Reference Function Fitted Alternative Removed Related To R64 CAN Do not use CAN function Do not use CAN function R8C 25 Microcontroller do not R8C 25 Microcontroller do not have CAN function have CAN function R66 CAN Do not use CAN function Do not use CAN function Table 6 5 Option Links 6 7 Oscillator Sources A crystal oscillator is fitted on the RSK and used to supply the main and sub clock input to the Renesas microcontroller Table 6 6 Oscillators Resonators details the oscillators that are fitted and alternative footprints provided on this RSK Component Crystal X1 Fitted 20 MHz HC 49U package Sub clock X2 Fitted 32 768 kHz 90S MX package Table 6 6 Oscillators Resonators 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 User Boot Mode and User 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 RSK Please refer to the hardware manual for more information on the requirements of the reset circuit The Reset circuit operates by latching the state of the boot switch on pressing the reset button This control is
3. R14 R16 Sub clock Microcontroller header pins to microcontroller signals from microcontroller external pins R16 Oscillator Connects External Disconnects sensitive R13 R14 R15 Sub clock Microcontroller header pins to microcontroller signals from microcontroller external pins R17 Oscillator Parallel resister for sub clock Not fitted R13 R14 Sub clock X2 R18 Board VCC Supply to board from DC Disconnected R20 Power J ack J 5 R19 Reference Voltage Connects Board_VCC supply Reference Voltage MUST be R7 to Reference Voltage supply provided from external interface R20 Board VCC Connects Board VCC supply Board VCC disconnected from R18 R19 R21 to board voltage line board voltage line R22 R23 R21 Board VCC Connects External 5V External 5V disconnected from R20 R22 CON 5V to Board VCC Board VCC Option Link Settings Reference Function Fitted Alternative Removed Related To R22 Board VCC Connects External 3V3 External 3V3 disconnected R20 R21 CON 3V3 to Board VCC from Board VCC R23 Microcontroller Supply to microcontroller Fit Low ohm resister to VCC measure current R30 User I O Power Connects Board VCC supply Board VCC disconnected from Supply to SW2 3 and LEDO 3 SW2 3 and LEDO 3 R31 Sw1 Connects SW1 to INTO Input Disconnected R44 RS232 Transceiver Disables RS232 Serial Enables RS232 Serial R45 R46 Transceiver
4. 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 10 4 Memory Map 00000h SFR 002FFh l 00400h L Internal RAM User RAM Area OOBFFh r 02400h Internal ROM Emulator Firmware Data Area Area 02BFFh I Note E8 Firmware area selected via HEW 08000h L 23 Emulator Firmware Area 08800h Internal ROM Program Area User ROM Area OFFDCh Fixed Vector Tables OFFFFh Figure 10 1 Memory Map Chapter 11 Component Placement quB gg T omg JS ac SVDC J5 O EH I amp 22229 Il GREG gy D E8 So SE S is Y mie TT B Ere Eum D N d P NI V M e 0 R11 4 1 E eech RR 3B US im a e R53 SERE 2 SR TENESAS y E co rm 5 3 y m Figure 11 1 Component Placement 20 Chapter 12 Additional Information For details on how to use High performance Embedded Workshop HEW refer to the HEW manual available on the CD or from the web site For information about the R8C 25 group microcontrollers refer to the R8C 25 Group Hardware Manual For information about the R8C 25 assembly language refer to the R8C Tiny Series Software Programming Manual Online
5. diagram gives the board dimensions and connector positions All through hole connectors are on a common 0 1 grid for easy interfacing 45 00mm wwoos uuige A A a 14 00mm Oo m B 8 8 3 33 3 H y Ka v 27 00mm 4 gt 50 80mm d 80 00mm 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 SS BOOT Application Board Bootmode pins Circuitry Interface Microcontroller P in RESETpin D type Headers Latch Microcontroller E8 IRQ pi LIN Connector ZS Power Connector for LIN ADC Input Vo Serial Connector Option emm eme 2 0 0 SWi RES 2 mar LCD Display Potentimeter Data x4 UserLED x4 POWER Green Control x2 1Green 1Orage 2Red BOOT Orange Figure 5 1 Block Diagram Figure 5 2 is representative of the connections required to the RSK E8a module N o I e _ User Interface Cable P O E8 8 1 Pa a E O 5 E o o o CPU Board Figure 5 2 RSK Connections sjeub
6. subsequently used to modify the mode pin states as required The mode pins 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 user s board meets all the reset timing requirements 11 Chapter 7 Modes The RSK supports Boot mode and Single chip mode Details of programming the FLASH memory is described in the R8C 25 Group Hardware Manual 7 1 Boot mode The boot mode settings for this RSK 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 settings The software supplied with this RSK supports Boot mode using an E8a and HEW only However hardware exists to enter boot mode manually do not connect the E8a 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 RSK will always bootin Single Chip mode w
7. technical support and information is available at http www renesas com rsk Technical Contact Details America techsupport rta renesas com Europe tools support euQ renesas com Japan CSCO renesas com General information on Renesas Microcontrollers can be found on the Renesas website at http www renesas com 21 Renesas Starter Kit for 5 User s Manual Publication Date Rev 1 01 29 05 2006 Published by Renesas Solutions Corp 4 1 6 Miyahara Yodogawa ku Osaka City 532 0003 Japan 2006 Renesas Solutions Corp Renesas Technology Europe Ltd and Renesas Technology Corp All Rights Reserved Renesas Starter Kit for R8C 25 User s Manual 24 NE SAS Renesas Solutions Corp 4 1 6 Miyahara Yodogawa ku Osaka City 532 0003 Japan
8. 0 No Connection 11 LCD Di 51 12 LCD Di 50 13 D6 49 14 LCD D7 48 Table 6 4 LCD Module Connections 6 6 Option Links Table 6 5 below describes the function of the option links contained on this RSK board Option Link Settings Reference Function Fitted Alternative Removed Related To R7 Reference Voltage Connects Reference Voltage Reference Voltage R19 to microcontroller disconnected from microcontroller R8 Oscillator Connects External Disconnects sensitive R10 R11 R12 Main clock Microcontroller header pins to microcontroller signals from microcontroller external pins R10 Oscillator Connects External Disconnects sensitive R8 R11 R12 Main clock Microcontroller header pins to microcontroller signals from microcontroller external pins R11 Oscillator Connects main clock X1 to Main clock disconnected from R8 R10 R12 Main clock microcontroller microcontroller R12 Oscillator Connects main clock X1 to Main clock disconnected from R8 R10 R11 Main clock microcontroller microcontroller R13 Oscillator Connects sub clock X2 to Sub clock disconnected from R14 R15 R16 Sub clock microcontroller microcontroller R17 R14 Oscillator Connects sub clock X2 to Sub clock disconnected from R13 R15 R16 Sub clock microcontroller microcontroller R17 R15 Oscillator Connects External Disconnects sensitive R13
9. 10 2 Mode Suppott aiia ei diei e 10 3 Breakpoint Te 10 4 Memory Map ese ESR SS Chapter 11 Component Placement Chapter 12 Additional Iniormation sass 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 Renesas Solutions Corp 2007 All rights reserved Renesas Technology Europe Ltd 2007 All rights reserved Renesas Technology Corp 2007 All rights reserved Website htto www eu renesas com Glossary CPU Central Processing Unit RTE Renesas Technology Europe Ltd HEW High performance Embedded Workshop RSO Renesas Solutions Organisation LED Light E mitting Diode RSK Renesas Starter Kit PC Program Counter Chapter 2 Purpose This RSK is an evaluation tool for Renesas microcontrollers 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 RSK board contains all the circuitry required for microcontroller operation Chapter 3 Power Supply 3 1 Requirements
10. REJ10J1242 0200 Everywhere you imagine yy 2 ENESAS Renesas Starter Kit for R8C 25 User s Manual RENESAS SINGLE CHIP MICROCOMPUTER M16C FAMILY R8C Tiny SERIES Rev 2 00 Renesas Solutions Corp Revision date 15 0CT 2007 www renesas com Table of Contents AE ad raa aa inadai k ania Chapter 2 PUrDOSQ 1 1 1 1 1 1 1 12121 212 2 1212 1212121212 12121212 212 2 2 2 a Ghapter 3 Power Supply conidios K MEET 3 2 Power Up BelavioUr iii edi E ea En Re i o Et i ee Enn Chapter 4 Board Layout 4 1 COMPONENT e uei be ee dee ty b obe bres e te be cedo 4 2 Board DIMENSIONS enne nnne nns Chapter 5 Block Diagram ssssssssseseseseee eene nennen nnne nnne Chapter 6 User Cireuttrm seen GAT SWITCHES cat 1 1 1 1 1 1 1 attic ci ee AE EE 5 2 LEDS ri ee 6 3 Potentlomieter aio oda 6 4 Serial port iaa a aa a rata rata 6 5 BOE eof ati 6 6 ee rein 6 7 Oscillator Gources Sica ennemis sistens Get e Ghapter 7 110668 tiet tei Ret i Cit ade dete E 71250611036086 as 01016 6110111606 2 saia E Chapter 8 Programming Methode Chapter e 9 1 Microcontroller Headers AA 9 2 Application Headers sese een enne nnns Chapter 10 Code Development 10 1 OVelIVIOW xtd tc tas EE E tee A let
11. This RSK operates from a 3V to 5V power supply A diode provides reverse polarity protection only if a current limiting power supply is used All RSK boards are supplied with an E8a debugger module This productis able to power the RSK board with up to 300mA When the RSK is connected to another system then that system should supply power to the RSK All RSK boards have an optional centre positive supply connector using a 2 1mm barrel power jack Warning The RSK is neither under nor over voltage protected Use a centre positive supply for this board 3 2 Power Up Behaviour When the RSK is purchased the RSK board has the Release or stand alone code from the example tutorial code pre programmed into the Renesas microcontroller On powering up the board the user LEDs will start to flash After 200 flashes or after pressing a switch the LEDs will flash at a 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 JAT 1 Power a Power LED A E 7 Microcontroller Pin Headers J1 to J4 ee Ed E8 Header MCU 5 User LED E Power Connector for LIN DO I LIN Connector Boot LED JA2 Lx 17 Q o e NX User Boot Switch Application Board Interface User Switches Potentiometer Figure 4 1 Board Layout 4 2 Board Dimensions The following
12. Transceiver R45 Programming Connects RS232 to Disconnected R44 R46 Serial Port Programming SCI port R46 Programming Connects R 232 port to Disconnected R44 R45 Serial Port Programming SCI port R47 E8 Enables E8a Connection Do not connect a option resister R50 Microcontroller pin Connects microcontroller pin MUST be removed if R51 fitted R51 function select 28to IRQ1 R51 Microcontroller pin Connects microcontroller pin Should be removed if R50 R50 function select 28 to lO 6 fitted R52 Microcontroller pin Connects microcontroller pin MUST be removed if R53 fitted R53 function select 29 to IRQ2 R53 Microcontroller pin Connects microcontroller pin Should be removed if R52 R52 function select 28to10_7 fitted R54 Microcontroller pin Connects microcontroller pin MUST be removed if R55 fitted R55 function select 27 to IRQO R55 Microcontroller pin Connects microcontroller pin Should be removed if R54 R54 function select 27 to TRIGa fitted R56 LIN For Master Mode For Slave Mode R59 R60 R61 R59 LIN Connects microcontroller pin Disconnected R56 R60 R61 22 to LIN NSLP R60 LIN Connects microcontroller pin Disconnected R56 R59 R61 23 to LIN RXDO R61 LIN Connects microcontroller pin Disconnected R56 R59 R60 23 to LIN TXDO R62 CAN Do not use CAN function Do not use CAN function R8C 25 Microcontroller do not have CAN function R8C 25 Microcontroller do not have CAN function Option Link Settings
13. ader Name RSK Signal Device Pin Header Name RSK Signal Device Name Pin Name Pin 1 Reset RESn 8 2 External Clock Input CON_XIN 11 3 Interrupt NC 4 Regulated Supply 1 GND 5 SPARE NC 6 Serial Port SClaTX 24 1 Interrupt IRQO 2 8 Serial Port SCIaRX 23 9 Interrupt IRQ1 28 10 Serial Port SClaCK 22 11 Motor up down MO_UD 52 12 Serial Port Handshake NC 13 Motor control MO_Up 19 14 Motor control MO_Un 17 15 Motor control MO_Vp 16 16 Motor control MO_Vn 14 17 Motor control MO_Wp 15 18 Motor control MO W 13 19 Timer Output TMRO 18 20 Timer Output TMR1 34 21 Timer Input TRIGa 2 22 Timer Input TRIGb 21 23 nterrupt IRQ2 29 24 Tristate Control TRISTn 3 25 SPARE 2 0 20 26 SPARE P31 33 Table 9 6 J A2 Standard Generic Header 16 J9 Pin Function Signal Name 1 Power Supply for LIN module VBAT 2 GROUND GND J10 Pin Function Signal Name 1 Power Supply for LIN module VBAT 2 LIN Bus Line LIN B GROUND GND Table 9 7 LIN Headers Chapter 10 Code Development 10 1 Overview Note For all code debugging using Renesas software tools the RSK board must be connected to a PC USB port via an E8a An E8a is supplied with the RSK product 10 2 Mode Support HEW connects to the Microcontroller and programs it via the E8a Mode support is handled transparently to the user 10 3 Breakpoint Support HEW supports breakpoints on the user code both in
14. hen the E8a is not connected and the boot switch is not depressed Refer to R8C 25 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 HEW and the supplied E8a debugger Refer to R8C 25 Group Hardware Manual for details of programming the microcontroller without using these tools 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 microcontroller pins Marked pins are subject to option links JA Pin Circuit Net Name Device Pin Pin Circuit Net Name Device Pin 1 No Connection 2 IIC_SCL 2 3 3 4 IIC_SDA 4 5 MODE 8 5 6 RING_P4 3 6 7 RING P4 4 7 8 RESn 8 9 CON_XOUT 9 10 VSS 10 11 CON_XIN 1 12 UC VCC 12 13 MO Wn 13 14 No Connection Table 9 1 J 1 2 Pin Circuit Net Name Device Pin Circuit Net Name Device Pin Pin 1 MO Vn 14 2 MO Wp 15 3 MO_Vp 16 4 MO_Un 17 5 TMRO 18 6 MO_Up 19 1 P20 20 8 TRIGb 21 9 SClaCK 22 10 SClaRX 23 11 SClaTX 24 12 IRQ3 25 13 No Connection 14 No Connection Table 9 2 J 2 J3
15. ls ULO 08 1008 Chapter 6 User Circuitry 6 1 Switches There are four switches located on the RSK The function of each switch and its connection are shown in Table 6 1 Switch Function Microcontroller RES When pressed the RSK microcontroller is reset RESET Pin8 SW1 BOOT Connects to an IRQ input for user controls INTO P 7 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 Interrupt input line for user controls INT1 Pin21 Port 1 pin 7 SW3 Connects to a Key In Interrupt input line for user controls KI3 Pin25 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 RSK board The green POWER LED lights when the board is 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 setlow Table 6 2 below shows the LED pin references and their corresponding microcontroller port pin connections LED Reference As Colour Microcontroller Port Pin function Microcontroller Pin shown on silkscreen Number LEDO Green Port 2 4 16 LED Orange Port 2 5 15 LED2 Red Port 2 6 14 LED3 Red Port 2 7 13 Table 6 2 LED Port 6 3 Potentiometer A single turn
16. potentiometer is connected to AN8 P 1 0 of the microcontroller This may be used to vary the input analogue voltage value to this pin between VREF and Ground 6 4 Serial port The microcontroller programming serial port 1 is connected to the RS232 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 Fitfor 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 J 8 This should be fitted so that the LCD module lies over J 1 Care should be taken to ensure 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 set by a resistor on the supplied display module The module supplied with the RSK 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 31 5 R W Wired to Write only 6 LCD_E 30 1 No Connection 8 No Connection 9 No Connection 1
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