Renesas RL78/I1C User Manual
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Renesas RL78/I1C User Manual

Fast prototyping board
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RL78/I1C (512 KB)
Fast Prototyping Board
16
16
16-Bit Single-Chip Microcontrollers
RL78 Family
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 (http://www.renesas.com).
www.renesas.com
User's Manual
Rev.1.00 Apr 2021

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Summary of Contents for Renesas RL78/I1C

  • Page 1 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.
  • Page 2 Renesas Electronics disclaims any and all liability for any damages or losses incurred by you or any third parties arising from the use of any Renesas Electronics product that is inconsistent with any Renesas Electronics data sheet, user’s manual or other Renesas Electronics document.
  • Page 3 Unit Products The following usage notes are applicable to all Microprocessing unit and Microcontroller unit products from Renesas. For detailed usage notes on the products covered by this document, refer to the relevant sections of the document as well as any technical updates that have been issued for the products.
  • Page 4 The following documents apply to the RL78/I1C (512 KB) Fast Prototyping Board. Be sure to refer to the latest versions of these documents. The newest versions of the listed documents are available on the Renesas Electronics Web site.
  • Page 5 Digilent Inc. For the Pmod™ interface specification, refer to the Pmod™ Pmod™ License Agreement page at the Web site of Digilent Inc. Random Access Memory Renesas Flash Programmer Read Only Memory Serial Peripheral Interface Universal Serial Bus Timer Pulse Unit...

  • Page 6: Table Of Contents

    6. Handling Precautions ....................... 29 Power to be Supplied ..........................29 Remodeling the Board ..........................29 Limitation on the Number of Connected RL78/I1C (512 KB) Fast Prototyping Boards ......29 Power-Supply Circuits and Usage Conditions ..................29 7. Developing Code ......................31 Using the e studio ...........................

  • Page 7: Overview

    1. Overview 1. Overview Package Components Thank you for purchasing the RL78/I1C (512 KB) Fast Prototyping Board evaluation tool from Renesas (hereinafter referred to as “this product”). This product consists of the following items. • RL78/I1C (512 KB) Fast Prototyping Board (RTK5RL10N0CPL000BJ) •...

  • Page 8: Board Specification Table

    *1. This part is not mounted. *2. The RL78/I1C on the board as shipped is intended to be supplied with 3.3 V power generated by the low-dropout regulator (LDO) from VBUS. The board must be remodeled if a voltage other than 3.3 V is to be supplied. For details, refer to Chapter 5 User Circuits.

  • Page 9: Block Diagram

    RL78/I1C (512 KB) Fast Prototyping Board 1. Overview Block Diagram Figure 1-1 shows the block diagram of this product. MCU current Coin-cell Arduino 50-pin Pmod measurement battery connector MCU header × 2 connector connector header circuit Debug/serial select switch Emulator reset...

  • Page 10: Board Layout

    RL78/I1C (512 KB) Fast Prototyping Board 2. Board Layout 2. Board Layout Figure 2-1 shows the external appearance of the top side of this product. Eight power pins for Arduino Uno R3 MCU header (1 to 50) Pmod connector 2 Ten digital pins for Arduino...

  • Page 11: Parts Layout

    RL78/I1C (512 KB) Fast Prototyping Board 3. Parts Layout 3. Parts Layout Figure 3-1 shows the parts layout of this product. 2.54 mm 111.76 mm Figure 3-1 Parts Layout R20UT4947EJ0100 Rev. 1.00 Page 5 of 42 Apr.01.21...

  • Page 12: Operating Environment

    RL78/I1C (512 KB) Fast Prototyping Board 4. Operating Environment 4. Operating Environment Figure 4-1 shows the operating environment of this product. Install the IDE from the following URL on the host PC. The installer automatically installs all required drivers along with the IDE.

  • Page 13: User Circuits

    USB Connector The connector shape is micro-USB Type-B for the IDE and for the Renesas Flash Programmer (RFP). Connect the USB connector to the computer by a USB cable. If the power supply on the host side is on, the power is supplied to this product at the same time as connection of the cable.

  • Page 14: Pmod Connectors

    RL78/I1C (512 KB) Fast Prototyping Board 5. User Circuits Pmod Connectors A Pmod connector can be connected to the RL78/I1C by a type 2A Pmod interface. Figure 5-1, Table 5-1, and Table 5-2 show the pin assignments of the Pmod connectors. Default open pad Figure 5-1 Pin Assignments of the Pmod...
  • Page 15 RL78/I1C (512 KB) Fast Prototyping Board 5. User Circuits Table 5-1 Pin Assignments of Pmod 1 Pin No. of Name of RL78/I1C Pmod 1 Pmod Power Port SPI (CSI) UART I2C* Signal Supply ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ MOSI...
  • Page 16 RL78/I1C (512 KB) Fast Prototyping Board 5. User Circuits Table 5-2 Pin Assignments of Pmod 2 Pin No. of Name of RL78/I1C Pmod 2 Pmod Power Port SPI (CSI) UART I2C* Signal Supply ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ MOSI...

  • Page 17: Arduino Connectors

    RL78/I1C (512 KB) Fast Prototyping Board 5. User Circuits Arduino Connectors The specification of the Arduino connectors is on the assumption that Arduino shields are to be connectable. However, we do not guarantee connection to all types of Arduino shield. Confirm the specifications of this product against any Arduino...
  • Page 18 RL78/I1C (512 KB) Fast Prototyping Board 5. User Circuits Table 5-3 Pin Assignments of the Arduino Connectors Part No. in Name of RL78/I1C the Circuit Arduino Power Port Analog Serial Others Schematics Signal Supply ⎯ ⎯ ⎯ ⎯ ⎯ ⎯...

  • Page 19: Mcu Headers

    The MCU headers are provided for by two sets of through holes (J5 and J6), each allowing for headers for a total of 50 pins. The pin headers have a pitch of 2.54 mm and the RL78/I1C is connected to the through holes for the headers.
  • Page 20 (P52 and P51) on the back of the board (refer to Figure 5-8 and Figure 5-9). *2. This pin is for use in debugging or programming of the RL78/I1C with the TOOL0 function on the board as shipped and by default is not connected to the MCU header. If the MCU header is to be used, remove the short pad (TOOL0) and short-circuit the open pad (P40) on the back of the board (refer to Figure 5-10 and Figure 5-11).
  • Page 21 RL78/I1C (512 KB) Fast Prototyping Board 5. User Circuits Short-circuit the open pad (P52). Short-circuit the open pad (P51). Remove the short pad (RXD4). Remove the short pad (TXD4). Figure 5-9 Positions to be Modified when P51 and P52 are to be Connected to the MCU Headers...
  • Page 22 RL78/I1C (512 KB) Fast Prototyping Board 5. User Circuits Short pad: VL3 Evaluation MCU Pin 33 (P125/VL3) LCD drive voltage (RL78/I1C (512 KB)) generator MCU header connection Open pad: P125 Figure 5-12 Block Diagram of Switching between VL3 and P125 (*3) Short-circuit the open pad (P125).
  • Page 23 RL78/I1C (512 KB) Fast Prototyping Board 5. User Circuits Table 5-5 Pin Assignments of the 50-Pin Connector for the MCU Headers (J6) RL78/I1C Direction as Seen from the Note RL78/I1C Name of Signal Pin No. ⎯ ⎯ ⎯ +5.0V ⎯...
  • Page 24 P20/ANI3/AVREFP/VREFOUT Output This pin is write-only since a diode for preventing reverse current has been mounted between the RL78/I1C and the MCU header. Functions of the ANI3 and AVREFP pins for use as inputs and input through P20 are not available.

  • Page 25: Clock

    Pressing the reset switch (RST) applies a hardware reset to the RL78/I1C. 5.11 User Switch An optional user switch (SW) is mounted. It is connected to pin 12 of the RL78/I1C, which operates as pin function P150. The INTP14 interrupt is multiplexed on the same pin. R20UT4947EJ0100 Rev. 1.00 Page 19 of 42 Apr.01.21...

  • Page 26: Debug/Serial Select Switch

    The debug mode is selected on the board as shipped, enabling debugging and programming of the RL78/I1C. For serial mode, using the TxD4 and RxD4 functions of the P51 and P52 pins of the RL78/I1C enables UART communications between the host PC and the RL78/I1C. The user needs to prepare the terminal software, such as TeraTerm.

  • Page 27: Emulator Reset Header

    The emulator is placed in the forced reset state by short-circuiting the emulator reset header (EJ2). This allows stand-alone operation of the RL78/I1C independently of control by the IDE while the IDE is applying a forcible reset. Figure 5-15 shows the position of the emulator reset header.

  • Page 28: Power-Supply Selection Header

    Power-Supply Selection Header The operating power (VDD) of the RL78/I1C can be changed to VBUS (+5 V) or +3.3 V with the use of this header (J8). Only change the jumper setting of J8 while power is not being supplied (actual header components are not mounted).

  • Page 29: External Power-Supply Header

    5.15 External Power-Supply Header When the RL78/I1C is to have a desired power-supply voltage, or when more current is required than the USB is capable of supplying, use the external power-supply header (J9) to supply power. The usable voltages depend on the RL78/I1C.

  • Page 30: Coin-Cell Battery Circuit

    5.17 MCU Current Measurement Header This header (J7) is used to measure the current drawn by the RL78/I1C (J7 header components are not mounted). Connecting an ammeter to this product enables measurement of the current being drawn by the evaluation MCU. Take care to remove the given short pad (VDD) if this header is to be used. Figure 5-21 shows the position of the current measurement header and Figure 5-22 shows the position of the short pad (VDD).
  • Page 31 Short pad (VDD) Figure 5-22 Position of the Short Pad (VDD) (Soldered Side) When the current is to be measured, turn down the LED to reduce the current drawn with the RL78/I1C or remove the short pads (P10 and P11).

  • Page 32: Analog Circuits

    (pin 99 of the RL78/I1C), REF for Arduino, or VDD. VREFOUT for the RL78/I1C is selected by default on the board as shipped (refer to Figure 5-25). To select REF for Arduino, short-circuit an open pad (REF) (refer to Figure 5-26).
  • Page 33 REF (J4-8) for Open pad (REF): short-circuit Arduino Open pad (REF_VDD): open-circuit Open pad: REF_VDD Note: Do not use pin 99 of the RL78/I1C as an output. Figure 5-26 Circuit Schematic when REF for Arduino is Selected VREFOUT MCU header Pin 50...

  • Page 34: Lcd Drive Voltage Generator

    RL78/I1C (512 KB) Fast Prototyping Board 5. User Circuits 5.19 LCD Drive Voltage Generator By mounting resistors or capacitors on this product, the internal voltage boosting method, capacitor split method, or external resistance division method can be selected as the LCD drive power generating method of the RL78/I1C.

  • Page 35: Handling Precautions

    EJ2: mounted; EJ2: short-circuit reset state.) *1. Connecting the RL78/I1C (512 KB) Fast Prototyping Board to an Arduino shield or a board supported by Pmod shall be conducted at the user’s own responsibility and should only proceed after confirming the specifications of the power supply and interfaces.
  • Page 36 RL78/I1C (512 KB) Fast Prototyping Board 6. Handling Precautions +5 V +5 V Arduino +3V3 A_+3V3 Arduino 3.3 V A_+3V3 J8 (not mounted) VBUS (5 V) E_VCC VBUS (5 V) 3.3 V Regulator connector E_+3V3 Pmod connector Renesas Confidential Emulator Circuit...

  • Page 37: Developing Code

    7. Developing Code 7. Developing Code Using the e studio Figure 7-1 shows the settings of the e studio when creating a new project for the RL78/I1C (512 KB) Fast Prototyping Board. • [Debug hardware]: Select [E2 Lite (RL78)]. •...

  • Page 38: Using Cs

    RL78/I1C (512 KB) Fast Prototyping Board 7. Developing Code Using CS+ Figure 7-2 and Figure 7-3 show the settings of CS+ when creating a new project for the RL78/I1C (512 KB) Fast Prototyping Board. • [Using Debug Tool]: Select [RL78 E2 Lite (E)] from [Using Debug Tool] in the [Debug] menu.

  • Page 39: Additional Information

    General information on Renesas microcontrollers can be found on the Renesas website at: https://www.renesas.com/ Note Do not install the RL78/I1C (512 KB) Fast Prototyping Board or sample code into your product. The operation of sample code is not guaranteed. Confirm the operation on your own responsibility. Trademarks All brand or product names used in this manual are trademarks or registered trademarks of their respective companies or organisations.
  • Page 40 RL78/I1C (512 KB) Fast Prototyping Board User’s Manual Revision History Rev. Date Description Page Summary ⎯ 1.00 Apr.01.21 First Edition issued...
  • Page 41 RL78/I1C (512 KB) Fast Prototyping Board User’s Manual Publication Date: Rev.1.00 Apr.01.21 Published by: Renesas Electronics Corporation...
  • Page 42 RL78/I1C (512 KB) R20UT4947EJ0100...

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