Renesas RX65N Series User Manual

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RX65N Group

RX65N Envision Kit User’s Manual

Rev. 1.00 Sep 2017

RENESAS 32-Bit MCU RX Family / RX600 Series

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 Corporation without notice. Please review the latest information published by Renesas Electronics Corporation through various means, including the Renesas Electronics Corporation website (http://www.renesas.com).

User’s Manual

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Notice

1. Descriptions of circuits, software and other related information in this document are provided only to illustrate the operati on of

semiconductor products and application examples. You are fully responsible for the incorporation or any other use of the circuits, software, and information in the design of your product or system. Renesas Electronics disclaims any and all liability for any losses and damages incurred by you or third parties arising from the use of these circuits, software, or information.

2. Renesas Electronics hereby expressly disclaims any warranties against and liability for infringement or any other disputes involving

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, including but not limited to, the product data, drawing, chart, program, algorithm, application examples.

3. No license, express, implied or otherwise, is granted hereby under any patents, copyrights or other intellectual property rights of Renesas

Electronics or others.

4. You shall not alter, modify, copy, or otherwise misappropriate any Renesas Electronics product, whether in whole or in part. Renesas

Electronics disclaims any and all liability for any losses or damages incurred by you or third parties arising from such alteration, modification, copy or otherwise misappropriation of Renesas Electronics products.

5. Renesas Electronics products are classified according to the following two quality grades: "Standard" and "High Quality". The intended

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 (traffic lights); large-scale communication

equipment; key financial terminal systems; safety control equipment; etc. Renesas Electronics products are neither intended nor authorized for use in products or 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 (s pace and undersea repeaters; nuclear power control systems; aircraft control systems; key plant systems; military equipment; etc.). Renesas Electronics disclaims any and all liability 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.

6. When using the Renesas Electronics products, refer to the latest product information (data sheets, user’s manuals, application notes,

"General Notes for Handling and Using Semiconductor Devices" in the reliability handbook, etc.), and ensure that usage conditions are within the ranges specified by Renesas Electronics with respect to maximum ratings, operating power supply voltage range, heat radiation characteristics, installation, etc. Renesas Electronics disclaims any and all liability for any malfunctions or failure or ac cident arising out of the use of Renesas Electronics products beyond such specified ranges.

7. Although Renesas Electronics endeavors to improve the quality and reliability of Renesas Electronics 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 design. Please ensure to implement safety measures to gu ard them against the possibility of bodily injury, injury or damage caused by fire, and social damage in the event of failure or malfunction of Renesas Electronics products, 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 by your own responsibility as warranty for your products/system. Because the evaluation of microcomputer software alone is very difficult and not practical, please evaluate the safety of the final products or systems manufactured by you.

8. Please contact a Renesas Electronics sales office for details as to environmental matters such as the environmental compatibility of each

Renesas Electronics product. Please investigate applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive carefully and sufficiently and use Renesas Electronics products in compliance with all these applicable laws and regulations. Renesas Electronics disclaims any and all liability for damages or losses occurring as a result of your noncompliance with applicable laws and regulations.

9. Renesas Electronics products and technologies shall 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 shall not use Renesas Electronics pro ducts or technologies for (1) any purpose relating to the development, design, manufacture, use, stockpiling, etc., of weapons of mass destruction, such as nuclear weapons, chemical weapons, or biological weapons, or missiles (including unmanned aerial vehicles (UAVs)) fo r delivering such weapons, (2) any purpose relating to the development, design, manufacture, or use of conventional weapons, or (3) any other purpose of disturbing international peace and security, and you shall not sell, export, lease, transfer, or release Renesas Electronics products or technologies to any third party whether directly or indirectly with knowledge or reason to know that the third party or any other party will engage in the activities described above. When exporting, selling, transferring, etc., Renesas Electronics products or technologies, you shall comply with any applicable export control laws and regulations promulgated and administered by the governments of the countries asserting jurisdiction over the parties or transactions.

10. Please acknowledge and agree that you shall bear all the losses and damages which are incurred from the misuse or violation of the terms

and conditions described in this document, including this notice, and hold Renesas Electronics harmless, if such misuse or violation results from your resale or making Renesas Electronics products available any third party.

11. This document shall not be reprinted, reproduced or duplicated in any form, in whole or in part, without prior written consent of Renesas

Electronics.

12. Please contact a Renesas Electronics sales office if you have any questions regarding the information contained in this document or

Renesas Electronics products.

(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.

(Rev.3.0-1 November 2016)

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General Precautions in the Handling of Microprocessing Unit and Microcontroller 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.

1. Handling of Unused Pins

Handle unused pins in accordance with the directions given under Handling of Unused Pins in the manual.

 The input pins of CMOS products are generally in the high-impedance state. In operation with an

unused pin in the open-circuit state, extra electromagnetic noise is induced in the vicinity of LSI, an associated shoot-through current flows internally, and malfunctions occur due to the false recognition of the pin state as an input signal become possible. Unused pins should be handled as described under Handling of Unused Pins in the manual.

2. Processing at Power-on

The state of the product is undefined at the moment when power is supplied.

 The states of internal circuits in the LSI are indeterminate and the states of register settings and

pins are undefined at the moment when power is supplied. In a finished product where the reset signal is applied to the external reset pin, the states of pins are not guaranteed from the moment when power is supplied until the reset process is completed. In a similar way, the states of pins in a product that is reset by an on-chip power-on reset function are not guaranteed from the moment when power is supplied until the power reaches the level at which resetting has been specified.

3. Prohibition of Access to Reserved Addresses

Access to reserved addresses is prohibited.

 The reserved addresses are provided for the possible future expansion of functions. Do not access

these addresses; the correct operation of LSI is not guaranteed if they are accessed.

4. Clock Signals

After applying a reset, only release the reset line after the operating clock signal has become stable. When switching the clock signal during program execution, wait until the target clock signal has stabilized.

 When the clock signal is generated with an external resonator (or from an external oscillator)

during a reset, ensure that the reset line is only released after full stabilization of the clock signal. Moreover, when switching to a clock signal produced with an external resonator (or by an external oscillator) while program execution is in progress, wait until the target clock signal is stable.

5. Differences between Products

Before changing from one product to another, i.e. to a product with a different part number, confirm that the change will not lead to problems.

 The characteristics of Microprocessing unit or Microcontroller unit products in the same group but

having a different part number may differ in terms of the internal memory capacity, layout pattern, and other factors, which can affect the ranges of electrical characteristics, such as characteristic values, operating margins, immunity to noise, and amount of radiated noise. When changing to a product with a different part number, implement a system-evaluation test for the given product.

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This development kit is only intended for use in a laboratory environment under ambient temperature and humidity conditions. A safe separation distance should be used between this and any sensitive equipment. Its use outside the laboratory, classroom, study area or similar such area invalidates conformity with the protection requirements of the Electromagnetic Compatibility Directive and could lead to prosecution.

The product generates, uses, and can radiate radio frequency energy and may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment causes harmful interference to radio or television reception, which can be determined by turning the equipment off or on, you are encouraged to try to correct the interference by one or more of the following measures;

• ensure attached cables do not lie across the equipment

• reorient the receiving antenna

• increase the distance between the equipment and the receiver

• connect the equipment into an outlet on a circuit different from that which the receiver is connected

• power down the equipment when not in use

• consult the dealer or an experienced radio/TV technician for help NOTE: It is recommended that wherever

possible shielded interface cables are used.

The product is potentially susceptible to certain EMC phenomena. To mitigate against them it is recommended that the following measures be undertaken;

• The user is advised that mobile phones should not be used within 10m of the product when in use.

• The user is advised to take ESD precautions when handling the equipment.

The development kit does not represent an ideal reference design for an end product and does not fulfil the regulatory standards for an end product.

Precautions

The following precautions should be observed when operating any development kit product:

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The revision history summarizes the locations of revisions and additions. It does not list all revisions. Refer to the text of the specific manuals for details.

Document Type

Description

Document Title

Document No.

User’s Manual

Describes the technical details of the Envision Kit hardware.

RX65N Envision Kit User’s Manual

R01UH0761

Schematic

Circuit schematic of the Envision Kit.

RX65N Envision Kit Schematic

R12AN0035

Bill of materials

Bill of materials of the Envision Kit.

RX65N Envision Kit BOM list

R12TU0036

Hardware Manual

Provides technical details of the RX65N microcontroller.

RX65NGroup, RX651 Group User’s Manual: Hardware

R01UH0590

Software Manual

Details of the RXv2 Instruction Set Architecture.

RX Family RXv2 Instruction Set Architecture User's Manual: Software

R01US0071

Debugger Manual

E2 Emulator Lite Debugger Performance Property.

On-chip Debuggers Performance Property

R20UT0616

User’s manual

Getting Started Guide for e2 studio.

e2 studio Integrated Development Environment User's Manual: Getting Started Guide

R20UT2771

How to Use This Manual

1. Purpose and Target Readers

This manual is designed to provide the user with an understanding of the hardware design and configuration of the RX65N Envision Kit. It is intended as a reference for users working with the RX65N Envision Kit, using the many different incorporated peripheral devices.

The manual comprises of descriptions of the major circuit blocks of the RX65N Envision Kit and their interconnectivity. It provides details of the operation, configuration and user-adjustable options available for each of the blocks. Further information concerning the RX65N Envision Kit design can be found in the schematics. Further details of the RX65N microcontroller may be found in the RX65N Group Hardware Manual.

The following documents apply to the RX65N Group. Make sure to refer to the latest versions of these documents. The newest versions of the documents listed may be obtained from the Renesas Electronics Web site.

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Abbreviation

Full Form

DNF

Do Not Fit

DRW2D

RX microcontroller 2D Graphics drawing Engine peripheral.

Renesas Programmer / Debugger Emulator

E2 Lite

Renesas Programmer / Debugger Emulator

E2OB

Renesas On-chip Programming/Debugging Emulators

ESD

Electro Static Discharge

GLCDC

Graphic LCD Controller

I2C

Inter-Integrated Circuit

Integrated Circuit

IDE

Integrated Development Environment

IRQ

Interrupt Request

JTAG

Joint Test Action Group

LCD

Liquid Crystal Display

LED

Light Emitting Diode

MCU

Micro-controller Unit

Personal Computer

PCB

Printed Circuit Board

Pmod™

This is a Digilent Pmod™ Compatible connector. PmodTM is registered to Digilent Inc.

Digilent-Pmod_Interface_Specification

QSPI

Quad Serial Peripheral Interface

QVGA

Quarter Video Graphics Array

RAM

Random Access Memory

RMII

Reduced Media Independent Interface

ROM

Read Only Memory

RPB

Renesas Promotional Board

SD Card

Secure Digital Card

SDHI

Secure Digital Host Interface

SPI

Serial Peripheral Interface

TFT

Thin Film Transistor

USB

Universal Serial Bus

WQVGA

Wide Quarter Video Graphics Array

2. List of Abbreviations and Acronyms

All trademarks and registered trademarks are the property of their respective owners.

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Table of Contents

1. Overview ............................................................................................................................ 8

1.1 Purpose ...................................................................................................................................................... 8

1.2 Features ..................................................................................................................................................... 8

1.3 Board specification ..................................................................................................................................... 9

2. Power Supply .................................................................................................................. 10

2.1 Requirements ........................................................................................................................................... 10

2.2 Characteristics ......................................................................................................................................... 10

3. Board Layout ................................................................................................................... 11

3.1 Component Layout ................................................................................................................................... 11

3.2 Component Placement ............................................................................................................................ 13

3.3 Internal Functional Connectivity ............................................................................................................... 14

4. Envision Kit Circuitry ........................................................................................................ 15

4.1 Power Scheme ......................................................................................................................................... 15

4.1.1 Debug USB – CN9 ......................................................................................................................... 15

4.1.2 5V Supply ....................................................................................................................................... 15

4.1.3 LCD Backlight Power Circuit .......................................................................................................... 15

4.1.4 3.3V Power Supply ......................................................................................................................... 16

4.2 Embedded Programmer/Debugger or USB/Serial Communications ....................................................... 16

4.2.1 E2 On Board Programmer / Debugger .......................................................................................... 16

4.2.2 Operation of E2OB Programmer / Debugger ................................................................................. 17

4.2.3 USB/Serial UART Operation .......................................................................................................... 17

4.2.4 USB/Serial UART Connections to MCU ......................................................................................... 18

4.2.5 USB/Serial UART Configuration .................................................................................................... 18

4.2.6 External E1 / E2 Lite Emulator Connection .................................................................................... 18

4.3 Clock Circuit ............................................................................................................................................. 18

4.4 Switch and Joystick .................................................................................................................................. 19

4.5 LEDs ........................................................................................................................................................ 19

4.6 Pmod™ .................................................................................................................................................... 20

4.6.1 PmodTM Configuration .................................................................................................................... 20

4.7 Ethernet.................................................................................................................................................... 21

4.7.1 Ethernet Transceiver ...................................................................................................................... 21

4.7.2 Ethernet Connector and RMII Transceiver IC ................................................................................ 22

4.8 USB Host ................................................................................................................................................. 23

4.8.1 USB Host Power Management ...................................................................................................... 23

4.9 WQVGA LCD Display .............................................................................................................................. 24

4.9.1 Display Configuration ..................................................................................................................... 24

4.9.2 Capacitive Touchscreen ................................................................................................................. 24

4.10 QSPI Flash ............................................................................................................................................... 26

4.11 SD Host Interface (SDHI) ......................................................................................................................... 26

4.11.1 SDHI Power Management ............................................................................................................. 27

4.11.2 SDHI Connector and Power Management IC ................................................................................ 28

4.12 ArduinoTM ................................................................................................................................................. 28

4.12.1 ArduinoTM Configuration ................................................................................................................. 29

Note concerning the revision of ArduinoTM Shields connecting to the Envision Kit ....................................... 29

4.13 Available MCU Hardware Interrupt Pins (IRQ) ........................................................................................ 30

5. Additional Information ...................................................................................................... 31

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RX65N Envision Kit 1 Overview

1. Overview

1.1 Purpose

This development kit is an evaluation tool for Renesas microcontrollers. This manual describes the technical details of the RX65N Envision Kit hardware.

1.2 Features

The RX65N Envision Kit provides an evaluation of the following features:

• In-circuit programming and debugging with E2 Lite On Board (E2OB).

• WQVGA (480 x 272) TFT LCD panel driven directly from the RX65N Graphic LCD Controller (GLCDC)

peripheral.

• 23V LED driver circuit for LCD backlight.

• Graphics manipulation using the 2D Graphics Drawing Engine (DRW2D).

• Capacitive touch screen sampling via I2C controller.

• On-board QSPI serial Flash.

• USB 2.0 Host.

• Connection for external Pmod

The RX65N Envision Kit board contains all the circuitry required for microcontroller operation. A variety of other peripherals are tracked into the RX65N Envision Kit PCB design, but not fitted as standard.

• Ethernet – Requires Ethernet RMII Phy IC and surface mount connector.

• SD Host Interface – Requires SDHI connector and power management IC.

• Joystick – Providing switch inputs for left, right, up, down and centre mapping to RX65N IRQ ports.

• Provision to expand functionality with ArduinoTM style shields.

This manual is designed to describe the hardware features of the RX65N Envision Kit and is not intended as a comprehensive introduction to the RX65N microcontroller group, the e2 studio development IDE or the E2 Emulator Lite. Please refer to the relevant user manuals for more in-depth information.

based peripherals.

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RX65N Envision Kit 1 Overview

Item

Specification

Microcontroller

Part No : R5F565NEDDFB

Package : 144-pin LFQFP (PLQP0144KA-B)

On-Chip Memory : ROM 2MB+32KB, RAM 640KB

On-Board Memory

QSPI Serial Flash : 32Mbit

Input Clock RX65N Main : 12MHz

Power Supply

Mini-B USB : 5V Input

Power Supply IC : 5V Input, 3.3V Output

Backlight Power Supply : 5V Input, 23.5V Output at 15mA

Debug Interface

E2 on board debugger. Provision for external E1 / E2 Lite 14-pin header.

DIP Switch

Debugger Mode Configuration : 2-pole x 2

Push Switch User Switch x 1

Joystick (5 switches; Up, Down, Left, Right, Centre) *1

LED

3.3V power indicator : Green x 1

E2 on board debugger activity Indicator : Green x 1

User : Blue x 1

Ethernet Status: Green x 1, Yellow x 1

Ethernet *1 Connector : RJ45 x 1*1

Transceiver : Single Channel RMII transceiver*1

SDHI *1 *2

SD Card Slot (4-bit) x 1*1

USB

USB0-Host : USB-TypeA

USB to Serial Converter Interface

Connector : USB-MiniB (selectable between debugger or serial operation by DIP switch).

Pmod™

PmodTM : Angle type, 12-pin Connector

LCD Direct Drive Interface

0.5mm pitch, 40-pin x 1 (TFT)

LCD Touchscreen Interface

0.5mm pitch, 6-pin x 1 (I2C)

Arduino™ Headers*1

2.54mm pitch headers for connection to ArduinoTM shields*1

1.3 Board specification

The board specification is shown in Table 1-1 below.

Table 1-1: Board specification

*1. This component is not fitted to the product as standard.

*2. The RX65N Group incorporates an SD host interface (SDHI) which is compliant with the SD Specifications. When developing host devices that are compliant with the SD Specifications, the user must enter into the SD Host/Ancillary Product License Agreement (SD HALA).

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RX65N Envision Kit 2 Power Supply

2. Power Supply

2.1 Requirements

With the display backlight enabled, and operational, the RX65N Envision Kit can typically draw 170mA from the 5V supply provided from the mini-B USB connection CN9. This is a typical figure and not worst case, so it is recommended that the RX65N Envision Kit be supplied from a USB supply capable of supplying at least 500mA. Note that the current drawn from USB Host, PmodTM or SDHI interfaces when used must also be considered when determining the current requirements of the supply to the Envision Kit.

2.2 Characteristics

The power supply for the RX65N Envision Kit does not have any user-configurable options. The 5V input from the mini-B USB CN9 is used to source the 5V output from the USB-A Host output on CN11. It is also used to derive the 23.5V supply for the LCD backlight and also the main 3.3V supply for the RX65N MCU and other components. These supplies are described further in section 4 Envision Kit Circuitry.

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RX65N Envision Kit 3 Board Layout

User

Switch

QSPI

Serial Flash

Pmod

Connector

User LED

(Blue)

USB Type A

Socket

LCD Direct

Drive Interface

LCD Touchscreen

Interface

Power

LED

(Green)

USB-Mini B

Socket for Power and

debugger /

serial

operation

Emulator

Lite

Debugger

LED

(Green)

Switches for

Debugger Mode

Configuration

RX65N

MCU

Figure 3-1 : Board Layout (Underside, with display removed)

3. Board Layout

3.1 Component Layout

Figure 3-1 below shows the bottom component layout of the board.

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RX65N Envision Kit 3 Board Layout

Arduino

Headers

Spare MCU

Port Header

Analogue

Header

Arduino

Headers

E1 Debugger

Header

Ethernet

Socket

LAN8720A

Ethernet

Transceiver

Joystick

Power

Control

for SD

SD Card

Slot

Figure 3-2 : Board Layout Showing User-Fit Header Locations

Figure 3-3 : Board Layout Showing User-Fit Options

Figure 3-2 below shows the User-Fit header locations on the bottom component layout of the board.

Figure 3-3 below shows the User-Fit options on the bottom component layout of the board.

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RX65N Envision Kit 3 Board Layout

3.2 Component Placement

Figure 3-4 below shows the placement of individual components on the bottom side of the PCB. There are no components located on the top side. Component types and values can be looked up using the board schematics.

Figure 3-4 : Bottom–Side Component Placement

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RX65N Envision Kit 3 Board Layout

RX65N MCU

144 Pin LFQFP

2MB ROM

640KB RAM

R5F565NEDDFB

Arduino

Connections

SW4

1. E2OB Mode Select

2. Not Used

SW1

1. Debug/Standalone

2. MCU Reset

E2OB

Programmer/

Debugger

USB/Serial UART

CN9

USB Mini-B input

5V VBUS

Power

3.3V

Regulator

Power Control

SDHI

Ethernet

User LED

User Switch

1 x IRQ

Joystick

5 x IRQ

32MBit

QSPI Flash

Pmod

USB Host

Capacitive Touch

Cotroller

WQVGA (480 x 272)

TFT Display with

Capacitive Touchscreen

23.5V TFT Backlight

Power Supply

I2C SCI ADC

Enable/

Fault

3.3V

LAN8720 RMII

Phy IC

Power Control

Enable/

Fault

I2C

RGB565

Enable

JTAG

UART

Shaded Boxes Indicate that

this block is an option and not

fitted to the PCB as standard

3.3 Internal Functional Connectivity

Figure 3-5 below shows the RX65N Envision Kit functional components and their connectivity to the MCU.

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Figure 3-5 : Internal Block Diagram

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RX65N Envision Kit 4 Envision Kit Circuitry

4. Envision Kit Circuitry

4.1 Power Scheme

4.1.1 Debug USB – CN9

The mini-B USB socket CN9 provides an interface between the programmer/debugger and the development PC. Power for the RX65N Envision Kit is sourced from this USB connection; it is important that sufficient current is available. If a USB hub is used it must be externally powered. It is recommended that the USB source be capable of supplying at least 500mA.

4.1.2 5V Supply

The 5V input from the Debug USB, CN9, is used to supply power to the USB Host circuit, see section 4.8. It also provides the input to the LCD backlight power supply, see section 4.1.3, and the 3.3V regulator circuit, see section 4.1.4. This 5V supply does not have any regulation of itself; it is simply the voltage passed through from the USB input from CN9. A zero Ohm link R53 is connected in series to allow the debugger circuit to be operated from the USB supply when the rest of the board is supplied from another source, for example the ArduinoTM interface.

4.1.3 LCD Backlight Power Circuit

The LCD backlight power supply is required to drive the backlight of the TFT LCD display fitted to the Envision Kit. The backlight consists of a number of white LEDs connected in series (to ensure that they are driven with the same current and are therefore as closely matched in brightness as possible). For the Envision display, the backlight requires a specified 25V at 15mA. At room temperature, the actual operating voltage at 15mA is about

23.5V. The backlight power supply is based around the Intersil ISL97634 controller IC. This is a highly integrated, small footprint controller IC. Figure 4-1 shows the schematic for this circuit as implemented on the Envision Kit. Further details on the ISL97634 device can be obtained from the Intersil website www.intersil.com.

Figure 4-1 : LCD Backlight Power Supply

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RX65N Envision Kit 4 Envision Kit Circuitry

Illuminated

Communication established with Host PC Driver.

Flashing

Power available but no communication established with host PC.

Not Illuminated

Board not receiving power or E2OB critical error.

4.1.4 3.3V Power Supply

The 3.3V supply for the RX65N MCU and other circuitry on the Envision Kit is provided from the 5V supply by a switched-mode synchronous buck regulator based around the ISL80019 device from Intersil. This is a highly integrated, small footprint regulator IC, incorporating the power switching devices. Figure 4-2 shows the schematic circuit as implemented on the Envision kit. For further details concerning the ISL80019 device, refer to the Intersil website www.intersil.com.

Figure 4-2 : 3.3V Power Supply

4.2 Embedded Programmer/Debugger or USB/Serial Communications

The Envision kit board includes an embedded programmer / debugger circuit; E2 On-Board (abbreviated name: E2OB) to work with the RX65N MCU device. Further functionality is provided by the incorporation of USB / Serial communications within the E2OB and the ability to switch between the two operating modes by user switch.

4.2.1 E2 On Board Programmer / Debugger

The E2OB implements the functionality of the Renesas E2 Lite Programmer / Debugger on the Envision PCB, requiring just a USB connection to a development PC.

For more details of the E2OB capabilities please see the ‘On-chip Debuggers Performance Property’ reference document.

Host PC Drivers for the E2OB are supplied as part of the e2 studio development tool installation.

LED5 indicates the status of the E2OB. Refer to Table 4-1 for further details:

Table 4-1 : E2OB Activity Status Indicator LED5

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RX65N Envision Kit 4 Envision Kit Circuitry

SW1

Setting

Description

Position 1

Programmer/Debugger mode

OFF

Standalone operation

Position 2

Reset RX65N_RES# pulled low. RX65N held in reset state.

OFF

Reset NOT pulled low by user.

SW4

Setting

Description

Position 1

USB / Serial Mode

OFF

Programmer / Debugger Mode

Position 2

Not Used

OFF

4.2.2 Operation of E2OB Programmer / Debugger

Switch SW1 is used to enable or disable the E2OB programmer debugger or run the RX65N MCU in standalone mode. A second switch provides user access to the reset pin of the RX65N MCU. Table 4-2 describes the switch configurations.

Table 4-2 : SW1 Debugger / Reset Switch Operation

4.2.3 USB/Serial UART Operation

The E2 On Board can be reconfigured to provide a serial port connection from the RX65N Device on the Envision board to a host PC connected to CN9. Note that the serial port connection cannot be used at the same time as operating the debugger. Switch SW4 Position 1 is used to select Programmer / Debugger mode or Serial mode for the E2OB device. Note that in order for any change to take effect, the Envision Kit should be reset by recycling the power to the board.

Table 4-3 : SW4 Configurations for E2OB Mode Setting

When the Envision Kit is first connected to a PC running WindowsTM (Windows 10) with the USB / Serial connection, the PC will look for a driver. The PC will report that it is installing a driver and then report that a driver has been installed successfully, as shown in Figure 4-3. The exact messages may vary depending upon operating system. If Windows 7 use, USB driver for Windows 7 is required. USB driver can be obtained from the website www.renesas.com/envision.

Figure 4-3: USB-Serial WindowsTM (Windows 10) Installation message

In serial port mode, when connected to a host PC, the Envision board will map to a COM port, which can be accessed by any standard serial terminal application, such as PuTTY. Some computers may require a driver to be installed before the USB / Serial port can be used. When connected, the COM port can be determined by looking in device manager on the host PC, see Figure 4-4.

Figure 4-4 : COM Port on PC

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RX65N Envision Kit 4 Envision Kit Circuitry

Circuit Net Name

MCU

Function

Port

PC2_USBRXD

PC2

70*

UART5 receive line from USB

PC3_USBTXD

PC3

67*

UART5 transmit line from USB

MCU

MCU Signal name

MCU

Peripheral

Selection

Link

Destination Selection

Port

Fit

DNF

Function Signal Name

Peripheral Function

PC2

PC2_USBRXD_ARD_D12

RXD5

R65

R71

PC2_USBRXD

USB/Serial UART RXD5

MISO5

R71

R65

PC2_MISO5_ARD_D12

Arduino D12 MISO5

PC3

PC3_USBTXD_ARD_D11

TXD5

R72

R82

PC3_USBTXD

USB/Serial UART TXD5

MOSI5

R82

R72

PC3_MOSI5_ARD_D11

Arduino D11 MOSI5

Crystal

Oscillator

Function

Default

Placement

Frequency

Device Package

Main MCU crystal for RX65N MCU

Fitted

12MHz

Encapsulated, SMT

Oscillator for Ethernet (RMII)

Fitted*

25MHz

Encapsulated, SMT

4.2.4 USB/Serial UART Connections to MCU

Table 4-4 : USB/Serial UART Connections

Note that the configuration of this port-pin is subject to on-PCB option links. Refer to Table 4-5 for further details.

4.2.5 USB/Serial UART Configuration

Table 4-5 below details the function of the zero-Ohm option links associated with the USB / Serial UART Interface configuration. Bold, blue text indicates the default configuration that the Envision Kit is supplied with.

Table 4-5 : Option links affecting configuration of USB / Serial UART Interface

4.2.6 External E1 / E2 Lite Emulator Connection

The connector CN3 (not fitted as standard) allows the use of an external E1 or E2 Lite (not supplied) to be used instead of the existing E2OB. When in use, the on-board E2OB should be switched off by setting SW1 position 1 to OFF. See section 4.2.2.

For details of obtaining and using an external E1 Emulator please contact your local Renesas representative.

4.3 Clock Circuit

Clock circuits are fitted to the Envision Kit to generate the required clock signal to drive the MCU, and other peripherals. Refer to the RX65N User’s Manual : Hardware for details regarding the clock signal requirements, and the Envision Kit schematics for information regarding the clock circuitry in use. Details of the oscillators fitted to the board are listed in Table 4-6 below.

Table 4-6: Oscillators used on the Envision Kit design

Note that although the Ethernet oscillator X3 is fitted, Ethernet transceiver IC6 is not fitted to the board by

default.

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RX65N Envision Kit 4 Envision Kit Circuitry

Switch

MCU

Signal (Port)

IRQ

SW2

P05

IRQ13

Switch

MCU

Signal (Port)

IRQ

P67

IRQ15

DOWN

PF5

IRQ4

LEFT

P13

IRQ3

RIGHT

P03

IRQ11

CENTRE

P12

IRQ2

RefDes

Description

Manufacturer

Manufacturer’s Part Number

SW3

5-switch joystick, surface-mount

ALPS

SKQUDBE010

LED

Colour

Function

MCU

Port

LED1

Green

Indicates the status of the Board_3V3 power rail.

LED5

Green

E2OB status. See Table 4-1.

LED2

Blue

User operated LED.

P70

104

ETHERNET Connector CN15*

Green

Ethernet LED (On: Link, flashing: Activity)

ETHERNET Connector CN15*

Yellow

Ethernet LED (Speed)

4.4 Switch and Joystick

There is one user-switch located on the Envision Kit board and provision has also been made for a 5-way microswitch operated joystick, which is not fitted as standard. The switch and joystick connections to the RX65N MCU are shown in Table 4-7 and Table 4-8. For further information regarding switch connectivity, refer to the Envision Kit schematics.

Table 4-7 : Switch SW2 Connection to MCU

Table 4-8 : Joystick SW3 Connection to MCU

The joystick, SW3 is not fitted as standard to the Envision board. The part number details are shown in Table 4-9 below. For its location on the Envision Kit PCB, refer to Figure 3-3.

Table 4-9 : Not Fitted Joystick SW3 Component Details

4.5 LEDs

There are 5 LEDs on the Envision Kit. The LED function, colour and connections are shown in Table 4-10.

Table 4-10 : LED Connections

Ethernet connector CN15 is not fitted as standard.

R01UH0761EG0100 Rev. 1.00 Page 19 of 35 Sep 30, 2017

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RX65N Envision Kit 4 Envision Kit Circuitry

Care should be taken when installing PmodTM modules to ensure pins are not bent or damaged. PmodTM modules are vulnerable to electrostatic discharge (ESD); therefore appropriate ESD protection should be used.

Circuit Net Name

MCU

Circuit Net Name

MCU

Port

Pin Port

PJ5_SSL#2_PMOD_1*1

PJ5

11 7

PC6_IRQ13_PMOD_7*1

PC6

P50_MOSI2_PMOD_2

P50

56*2 8

P55_TXD7_PMOD_8

P55

51 3 P52_MISO2_PMOD_3

P52

54*2 9

PB7_TXD9_PMOD_9

PB7

78*2

P51_SCK2_PMOD_4

P51

55 10

PB6_RXD9_PMOD_10

PB6

79*2

GROUND

- -

GROUND

- - 6

Board_3V3

- -

Board_3V3

MCU

MCU Signal name

MCU

Peripheral

Selection

Link

Destination Selection

Port

Fit

DNF

Function Signal Name

Peripheral Function

P50

P50_PMOD_2_MOSI2_ARD_D14_SDA2

MOSI2

R10

P50_MOSI2_PMOD_2

PMOD Pin 2 MOSI2

SDA2

R10

P50_ ARD_D14_SDA2

Arduino D14 SDA2

P52

P52_PMOD_3_MISO2_ARD_D15_SCL2

MISO2

P52_MISO2_PMOD_3

PMOD Pin 3 MISO2

SCL2

P52_ARD_D15_SCL2

Arduino D15 SCL2

PB7

PB7_TXD9_PMOD_9_ARD_D1

Port / TXD9

R33

R34

PB7_TXD9_PMOD_9

PMOD Pin 9

SCI TXD9

R34

R33

PB7_TXD9_ARD_D1

Arduino D1

PB6

PB6_RXD9_PMOD_10_ ARD_D0

Port / RXD9

R37

R38

PB6_RXD9_PMOD_10

PMOD Pin 10

SCI RXD9

R38

R37

PB6_RXD9_ARD_D0

Arduino D0

4.6 Pmod™

There is a single Pmod™ Interface Type 2A Compatible expansion header on the Envision kit.

The Digilent Pmod™ Compatible header uses an SPI interface. Connection information for the Pmod™ Compatible header CN14 is provided in Table 4-11 and Table 4-12.

Please note that the connector numbering adheres to the Digilent Pmod™ standard and is different from other connectors on the development kit design. Details can be found in the Digilent Pmod™ Interface Specification Revision: November 20, 2011.

Figure 4-5: Digilent Pmod™ Compatible Header Pin Numbering

Table 4-11 : PmodTM Interface CN14 Connections

Note that there is no internal pullup connected to this pin on the Envision Kit PCB.

The configuration of this port-pin is subject to on-PCB option links. Refer to Table 4-12 for further details.

4.6.1 PmodTM Configuration

Table 4-12 below details the function of the zero-Ohm option links associated with the PmodTM Interface configuration. Bold, blue text indicates the default configuration that the Envision Kit is supplied with.

Table 4-12 : Option links affecting configuration of the PmodTM Interface

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RX65N Envision Kit 4 Envision Kit Circuitry

When running any Ethernet software, a unique MAC address should be used. As the Envision Kit is not fitted with an Ethernet transceiver IC or Connector by default, it is not supplied with a unique Renesas allocated MAC address. It is recommended that a unique MAC address should be always be used with this device ensured to ensure full compatibility when using other hardware on a common Ethernet connection.

Ethernet signal

Function

Signal on Envision Kit Schematic

MCU

Port

ET0MDIO

Management data serial I/O

P71_ET0_MDIO

P71

ET0MDC

Management serial clock

P72_ET0_MDC

P72

RMII0_TXD_EN

Transmit enable.

P80_ET0_TX_EN

P80

RMII0TXD0

Transmit data bit 0.

P81_ET0_TXD0

P81

RMII0TXD1

Transmit data bit 1.

P82_ET0_TXD1

P82

REF50CK0

Receive clock.

P76_ET0_RX_CLK

P76

RMII0RXER

Receive data error.

P77_ET0_RX_ER

P77

RMII0RXD0

Receive data bit 0.

P75_ET0_RXD0

P75

RMII0RXD1

Receive data bit 1.

P74_ET0_RXD1

P74

RMII0CRSDV

Carrier sense

P83_ET0_CRS

P83

Resistor Reference

Resistor Value

Signal on Envision Kit Schematic

Transceiver IC6

Reference

Description

Reference

R45

100K

P77_ET0_RX_ER

RXER/PHYAD0

Sets PHY Address to 0

R47

100K

P75_ET0_RXD0

RXD0/MODE0

Mode Setting: Mode

configured to value of 111 :

“All capable. Auto-negotiation

enabled.”

R46

100K

P74_ET0_RXD1

RXD1/MODE1

R48

100K

P83_ET0_CRS

CRS_DV/MODE2

R60

10K

LED2_INTSEL#

LED2/INTSEL#

Selects operation of

Transceiver pin 14

INT#/REFCLKO to be the

50MHz reference clock for

the RMII interface on the

RX65N MCU

4.7 Ethernet

An Ethernet transceiver IC (IC6, Microchip LAN8720A) has been designed into the Envision board (but not fitted as standard), and is connected to the Ethernet MCU peripheral. The RX65N MCU supports full duplex 10Mb/s and 100Mb/s transmission and reception. The connections for the Ethernet controller are listed in Table 4-13 below.

Table 4-13 : Ethernet Connections

4.7.1 Ethernet Transceiver

The Microchip LAN8720A Ethernet transceiver, IC6, is a 25-pin Reduced Media Independent Interface (RMII) device designed to reduce the number of pins used by the Ethernet connection. The circuit configuration on the Envision Kit uses a 25MHz crystal oscillator which is doubled by the LAN8720A to provide a 50MHz clock -out to drive the RMII interface, via the signal P76_ET0_RX_CLK on the Envision Kit schematic.

Various strap resistors are used to enforce a default configuration for the transceiver IC. These are detailed in Table 4-14 below. For further information, refer to the LAN8720A datasheet.

Table 4-14 : Ethernet Transceiver Configuration Strap Resistors

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RX65N Envision Kit 4 Envision Kit Circuitry

RefDes

Description

Manufacturer

Manufacturer’s Part Number

CN15

Ethernet Connector, surface-mount

Pulse

J3011G21DNL

IC6

RMII Ethernet Transceiver IC, QFN24

Microchip

LAN8720A

Note that with the LAN8720A configured to provide the 50MHz clock-out signal from the 25MHz crystal oscillator, the worst-case output delay time for the RX65N Ethernet controller (15ns) combined with the worst case setup time for the LAN8720A (7ns) exceeds the 20ns clock period for the RMII interface. In practice the combined controller delay time and transceiver setup time does not exceed the clock period. However it is recommended if this design is being considered as a reference for other applications that the LAN8720A is reconfigured to operate in 50MHz clock-in mode from an external 50MHz oscillator in order to avoid this worstcase scenario. In clock-in mode, the combined worst case delay time and setup time is less than the clock period.

A second note concerning the configuration of the LAN8720A in 50MHz clock-out mode is that the nINT/REFCLKO pin on the LAN8720A device is used to provide the 50MHz clock signal. When configured to operate in clock-in mode, this pin is freed and can be used to indicate link status to the Ethernet controller on the RX65N MCU, via the ET0_LINKSTA pin. This can provide link status to the Ethernet controller as an interrupt driven hardware signal (with the appropriate configuration of the LAN8720A internal registers), rather than requiring the link status to be polled via the management data interface as is currently the case.

4.7.2 Ethernet Connector and RMII Transceiver IC

The Ethernet connector CN15 and RMII transceiver, IC6 are not fitted as standard to the Envision board. The part number details are shown in Table 4-15 below. For their location on the Envision Kit PCB, refer to Figure 3-3.

Table 4-15 : Ethernet Not Fitted Component Details

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RX65N Envision Kit 4 Envision Kit Circuitry

USB Signal

Function

Signal on Envision Kit

Schematic

MCU

Port

USB0DP

Positive differential data signal.

USB0_DP

USB0DM

Negative differential data signal.

USB0_DM

USB0VBUSEN

VBUS power supply enable.

P16_USB0_VBUSEN

P16

USB0OVRCURA

Over-current detection signal A.

P14_USB0_OVR_CURA

P14

4.8 USB Host

The Envision Kit is fitted with a USB host socket (type A), CN11, which uses the USB module USB0 on the RX65N MCU. The connections for the USB0 module and USBA module are shown in Table 4-16 below.

Table 4-16 : USB0 Module Connections

4.8.1 USB Host Power Management

The 5V supply to the USB Host output uses a power management circuit to control the power output and provide protection from overloads and short-circuits. The schematic for this is shown in Figure 4-6 below. The circuit is based around the ISL61861 power management IC from Intersil, which has an active-high enable input, an (asserted low) fault output and can supply up to 1.5A from the 5V source supply. For more details concerning the ISL61861 device, visit the Intersil website www.intersil.com. Please note that the source supply (the USB connection on CN9) needs to be able to provide at least 1.5A or the source supply will provide the effective current limit instead.

R01UH0761EG0100 Rev. 1.00 Page 23 of 35 Sep 30, 2017

Figure 4-6 : USB Host Power Management Circuit

Page 24

RX65N Envision Kit 4 Envision Kit Circuitry

Display Connector

CN6 Pin Number

Function

Signal on Envision Kit

Schematic

MCU

Port

I2C Serial Clock

P01_TSCN_SCL6

P01 7 2

I2C Serial Data

P00_TSCN_SDA6

P00 8 3

VCC

VCC3V3

---

I2C Reset

P07_IRQ15_TSCN_RES

P07

144

I2C Interrupt Line

P02_TSCN_INT

P02 6 6

GND

---

4.9 WQVGA LCD Display

4.9.1 Display Configuration

The Envision Kit shows the capabilities of the RX65N MCU to directly drive a TFT LCD Display using its internal graphic LCD controller (GLCDC) and 2D drawing engine (DRW2D) peripherals. The display on the Envision Kit is a 4.3 inch 480 x 272 (WQVGA) colour display. On the Envision kit, the display is connected in RGB565 16bit colour format. In order to map the 16-bit RGB565 format to the 24-bit RGB888 format of the display, the connection of the least significant lines of each colour have been mapped to the most significant bits, to enable a more even colour variation with the increase in brightness for each colour. Refer to the schematics for further information. The display connects to the Envision kit board via connector CN4. This is a 40 way 0.5mm pitch connector. On the Envision board test points TP10, TP11, TP14, TP15 allow connections to a resistive touchscreen integrated in the display to be made (although circuitry to read this is not in the Envision Kit design). Table 4-18 below describes the connections from the Envision Kit to the display.

4.9.2 Capacitive Touchscreen

The Envision Kit display incorporates a capacitive touchscreen, which is accessed via a multi-touch controller, FocalTech FT5206. This controller is integrated into the cable connection from the touchscreen on the display to the 6-way 0.5mm pitch connector CN6. It communicates with the RX65N MCU via I2C to the SCI peripheral, channel 6. The touchscreen controller uses slave address 0x38. Table 4-17 below describes the connections from the RX65N MCU to the display touchscreen controller.

Table 4-17 : LCD Display Touchscreen CN6 Pin Connections

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RX65N Envision Kit 4 Envision Kit Circuitry

Display Connector

CN4 Pin Number

Function

Signal on Envision Kit

Schematic

MCU

Port

Backlight supply negative

VBACKLIGHT-

---

Backlight supply positive

VBACKLIGHT+

---

GND

---

VDD

VCC3V3

---

Red 0

PE3_LCD_DATA13

PE3

108

Red 1

PE2_LCD_DATA14

PE2

109

Red 2

PE1_LCD_DATA15

PE1

110

Red 3

PE5_LCD_DATA11

PE5

106

Red 4

PE4_LCD_DATA12

PE4

107

Red 5

PE3_LCD_DATA13

PE3

108

Red 6

PE2_LCD_DATA14

PE2

109

Red 7

PE1_LCD_DATA15

PE1

110

Green 0

PE7_LCD_DATA9

PE7

101

Green 1

PE6_LCD_DATA10

PE6

102

Green 2

PA3_LCD_DATA5

PA3

Green 3

PA2_LCD_DATA6

PA2

Green 4

PA1_LCD_DATA7

PA1

Green 5

PA0_LCD_DATA8

PA0

Green 6

PE7_LCD_DATA9

PE7

101

Green 7

PE6_LCD_DATA10

PE6

102

Blue 0

PA6_LCD_DATA2

PA6

Blue 1

PA5_LCD_DATA3

PA5

Blue 2

PA4_LCD_DATA4

PA4

Blue 3

PB0_LCD_DATA0

PB0

Blue 4

PA7_LCD_DATA1

PA7

Blue 5

PA6_LCD_DATA2

PA6

Blue 6

PA5_LCD_DATA3

PA5

Blue 7

PA4_LCD_DATA4

PA4

GND

---

DCLK – Dot Clock

PB5_LCD_CLK

PB5

DISP – Display Enable

P63_LCD_RESET

P63

113

HSYNC

PB2_LCD_TCON2

PB2

VSYNC

PB4_LCD_TCON0

PB4

DE – Data Enable

PB1_LCD_TCON3

PB1

---

GND

---

XR – Resistive Touch X - Right

TP10

---

YD– Resistive Touch Y - Down

TP11

---

XL– Resistive Touch X - Left

TP14

---

YU– Resistive Touch Y- Up

TP15

---

Table 4-18 : LCD Display CN4 Pin Connections

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RX65N Envision Kit 4 Envision Kit Circuitry

QSPI Signal

Function

Signal on Envision Kit

Schematic

MCU

Port

CS#

QSPI Chip Select

PD4_QSSL_B_QSPI

PD4

122

SO/SIO1

QSPI Data I/O line 1

PD7_QIO1_B_QSPI

PD7

119

WP#/SIO2

QSPI Data I/O line 2

PD2_QIO2_B_QSPI

PD2

124

HOLD#/SIO3

QSPI Data I/O line 3

PD3_QIO3_B_QSPI

PD3

123

SCLK

QSPI Clock

PD5_QSPCLK_B_QSPI

PD5

121

SI/SIO0

QSPI Data I/O line 0

PD6_QIO0_B_QSPI

PD6

120

SD Card Connector CN7

Pin Number

Function

Signal on Envision Kit

Schematic MCU

Port

SDHI Write Protect

P24_SDHI_WP_C

P24

SDHI Chip Detect

P25_SDHI_CD_C

P25

SDHI Command Line

P20_SDHI_CMD_C

P20

SDHI Clock Line

P21_SDHI_CLK_C

P21

SDHI Data line 0

P22_SDHI_D0_C

P22

SDHI Data line 1

P23_SDHI_D1_C

P23

SDHI Data line 2

P87_SDHI_D2_C

P87

SDHI Data line 3

P17_SDHI_D3_C

P17

(U2 ISL61861BIBZ) pin 4

SDHI Power Enable (active-high)

P64_SD_ENABLE

P64

112

(U2 ISL61861BIBZ) pin 5

Supply Fault Signal (asserts low)

P44_AN004_SD_PSU_OK

P44

136

4.10 QSPI Flash

The Envision Kit has a 32Mbit Quad Serial Peripheral Interface Flash memory. Table 4-19 below details the connections to the RX65N MCU, utilising the on-board QSPI-B peripheral. The Flash memory device used is a Macronix MX25L3233F.

Table 4-19 : QSPI Connections

4.11 SD Host Interface (SDHI)

Provision has been made for an SD Card Slot to be fitted to the Envision Kit, connecting to the SD Host Interface (SDHI) MCU peripheral. For further details regarding the SDHI operation, please refer to the RX65N Group User’s Manual: Hardware. It is not recommended to insert or remove the SD card during MCU reset, because the SD card power supply is enabled during MCU reset. The connections for the SDHI signals are listed in Table 4-20 below.

Table 4-20 : SDHI Connections

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RX65N Envision Kit 4 Envision Kit Circuitry

4.11.1 SDHI Power Management

The 3.3V supply to the SDHI card output uses a power management circuit to control the power output and provide protection from overloads and short-circuits. The schematic for this is shown in Figure 4-7 below. The circuit is based around the ISL61861 power management IC from Intersil, which has an active-high enable input, an (asserted low) fault output and can supply up to 1.5A from the 3.3V source supply. For more details concerning the ISL61861 device, visit the Intersil website www.intersil.com. Please note that the source supply (the USB connection on CN9) needs to be able to provide at least 1A or the source supply will provide the effective current limit instead.

Figure 4-7 : SDHI Power Management Circuit

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RX65N Envision Kit 4 Envision Kit Circuitry

RefDes

Description

Manufacturer

Manufacturer’s Part Number

CN7

SD/MMC Connector, surface-mount

Amphenol

101-00565-64

Power Management IC, SOIC8

Intersil

ISL61861BIBZ

4.11.2 SDHI Connector and Power Management IC

The SD connector CN7 and power management IC, U2 are not fitted as standard to the Envision board. The part number details are shown in Table 4-21. For their location on the Envision Kit PCB, refer to Figure 3-3.

Table 4-21 : SDHI Not Fitted Component Details

4.12 ArduinoTM

The Envision Kit provides the ability to fit ArduinoTM shields to be fitted to the board, to add functionality. Note that the headers themselves are not fitted to the Envision PCB and that the display would have to be removed in order to fit them. The ArduinoTM connection information and header locations are shown in Figure 4-8 and Figure 4-9 below:

Figure 4-8 : ArduinoTM Connection on Envision Kit Design

Figure 4-9 : ArduinoTM Header Locations On Envision PCB Underside

R01UH0761EG0100 Rev. 1.00 Page 28 of 35 Sep 30, 2017

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RX65N Envision Kit 4 Envision Kit Circuitry

MCU

MCU Signal name

MCU

Peripheral

Selection

Link

Destination Selection

Port

Fit

DNF

Function Signal Name

Peripheral Function

P50

P50_PMOD_2_MOSI2_ARD_D14_SDA2

MOSI2

R10

P50_MOSI2_PMOD_2

PMOD Pin 2 MOSI2

SDA2

R10

P50_ ARD_D14_SDA2

Arduino D14 SDA2

P52

P52_PMOD_3_MISO2_ARD_D15_SCL2

MISO2

P52_MISO2_PMOD_3

PMOD Pin 3 MISO2

SCL2

P52_ARD_D15_SCL2

Arduino D15 SCL2

PB7

PB7_TXD9_PMOD_9_ARD_D1

Port / TXD9

R33

R34

PB7_TXD9_PMOD_9

PMOD Pin 9

SCI TXD9

R34

R33

PB7_TXD9_ARD_D1

Arduino D1

PB6

PB6_RXD9_PMOD_10_ ARD_D0

Port / RXD9

R37

R38

PB6_RXD9_PMOD_10

PMOD Pin 10

SCI RXD9

R38

R37

PB6_RXD9_ARD_D0

Arduino D0

P34

P34_TGT_TRST#_ARD_D3

JTAG TRST

R15

R21

P34_TGT_TRST#

JTAG Target RST#

IRQ4/MTIOC0A

R21

R15

P34_ARD_D3_IRQ4_MTIOC0A

Arduino D3 – IRQ4 / MTIOC0A

PC2

PC2_USBRXD_ARD_D12

SCI RXD5

R65

R71

PC2_USBRXD

USB/Serial RXD5

SCI MISO5

R71

R65

PC2_MISO5_ARD_D12

Arduino D12 – MISO5

PC3

PC3_USBTXD_ARD_D11

SCI TXD5

R72

R82

PC3_USBTXD

USB/Serial TXD5

SCI MOSI5

R82

R72

PC3_MOSI5_ARD_D11

Arduino D11 – MOSI5

Note concerning the revision of ArduinoTM Shields connecting to the Envision Kit

The hardware interface for ArduinoTM shields connecting to the Envision Kit does not include the IOREF and (UNUSED) pins added to the ArduinoTM Uno at revision 3. These missing pins would have been located at the top of connector CN8, see Figure 4-9 for the location of the ArduinoTM headers on the Envision Kit and Figure 4-10 below for the position of the missing pins on the ArduinoTM connector system. The IOREF pin is used to inform the connected shield of the system logic voltage. In the case of the Envision kit, any shield that is connected and uses the IOREF pin should have this pin connected to the 3.3V supply on the Envision Kit board, for example, at test point TP6. Refer to the Envision Kit schematics and layout for further information.

Figure 4-10 : Missing IOREF and Unused Pin on Envision Kit for ArduinoTM Rev 3

4.12.1 ArduinoTM Configuration

Table 4-22 below details the function of the zero-Ohm option links associated with the ArduinoTM configuration.

Bold, blue text indicates the default configuration that the Envision Kit is supplied with.

Table 4-22 : Option links affecting configuration of the ArduinoTM Interface

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RX65N Envision Kit 4 Envision Kit Circuitry

IRQ

MCU

Port

MCU

Availability on Envision Board

IRQ13

P05

user switch SW2

IRQ11

P03

joystick SW3 right

IRQ4

PF5

joystick SW3 down

NMI

P35

Not used CN2 pin 1

IRQ4

P34

Debugger target reset or Arduino D3 (CN13 pin 5). Selectable via configuration resistors R15 and R21.

IRQ3-DS

P33

Arduino D5 (CN13 pin 3).

IRQ2-DS

P32

Arduino D6 (CN13 pin 2).

IRQ9

P21

SDHI clock CN7 pin 8

IRQ8

P20

SDHI CMD CN7 pin 12 (22K pullup)

IRQ7

P17

SDHI D3 CN7 pin 14 (22K pullup)

IRQ5

P15

Adruino D9 (CN12 pin 9)

IRQ3

P13

joystick SW3 left

IRQ2

P12

joystick SW3 centre

IRQ10

P55

CN14 Pmod pin 8

IRQ13

PC6

CN14 Pmod pin 7

IRQ12

PC1

Arduino D13 CN12 pin 5

IRQ14

PC0

Arduino D10 CN12 pin 8

IRQ15

P67

joystick SW3 up

IRQ1

PD1

125

Arduino D7 CN13 pin 1

IRQ0

PD0

126

Arduino D4 CN13 pin 4

IRQ15-DS

P47

133

Not used CN5 pin 5

IRQ14-DS

P46

134

Not used CN5 pin 3

IRQ13-DS

P45

135

Not used CN5 pin 1

IRQ11-DS

P43

137

Arduino A3 CN10 pin 4

IRQ10-DS

P42

138

Arduino A2 CN10 pin 3

IRQ9-DS

P41

139

Arduino A1 CN10 pin 2

IRQ8-DS

P40

141

Arduino A0 CN10 pin 1

4.13 Available MCU Hardware Interrupt Pins (IRQ)

Table 4-23 below shows a list of available hardware interrupt IRQ lines on the Envision PCB.

Table 4-23 : List of Available IRQ pins on the Envision Board

R01UH0761EG0100 Rev. 1.00 Page 30 of 35 Sep 30, 2017

Page 31

RX65N Envision Kit 5 Additional Information

www.renesas.com/envision

5. Additional Information

Further information concerning the Envision Kit product can be found at the following website:

Technical Support

For information about the RX65N Group microcontrollers refer to the RX65N Group Hardware Manual.

For information about the RX assembly language, refer to the RX Family Software Manual.

Technical Contact Details

America: techsupport.america@renesas.com Europe: https://www.renesas.eu/ibg-kitsupport Japan: csc@renesas.com

Website: https://www.renesas.com

Trademarks

All brand or product names used in this manual are trademarks or registered trademarks of their respective companies or organisations.

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 Electronics Europe Limited.

R01UH0761EG0100 Rev. 1.00 Page 31 of 35 Sep 30, 2017

Page 32

REVISION HISTORY

RX65N Envision Kit User’s Manual

Rev.

Date

Description

Page

Summary

1.00

Sep 30, 2017



First Edition issued

C-1

Page 33

RX65N Envision Kit: User’s Manual

Publication Date: Rev. 1.00 Sep 30, 2017

Published by: Renesas Electronics Corporation

Page 34

Refer to "http://www.renesas.com/" for the latest and detailed information.

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Colophon 4.1

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Page 35

R01UH0761EG0100

RX65N Group