Renesas MCB-RX26T Type C, RX Series, RX26T Series, RX200 Series Manual

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. Precaution against Electrostatic Discharge (ESD)
   A strong electrical field, when exposed to a CMOS device, can cause destruction of the gate oxide and ultimately degrade the device operation. Steps must be taken to stop the generation of static electricity as much as possible, and quickly dissipate it when it occurs. Environmental control must be adequate. When it is dry, a humidifier should be used. This is recommended to avoid using insulators that can easily build up static electricity. Semiconductor devices must be stored and transported in an anti-static container, static shielding bag or conductive material. All test and measurement tools including work benches and floors must be grounded. The operator must also be grounded using a wrist strap. Semiconductor devices must not be touched with bare hands. Similar precautions must be taken for printed circuit boards with mounted semiconductor devices.
2. Processing at power-on
   The state of the product is undefined at the time 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 time 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 time 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 time when power is supplied until the power reaches the level at which resetting is specified.
3. Input of signal during power-off state
   Do not input signals or an I/O pull-up power supply while the device is powered off. The current injection that results from input of such a signal or I/O pull-up power supply may cause malfunction and the abnormal current that passes in the device at this time may cause degradation of internal elements. Follow the guideline for input signal during power-off state as described in your product documentation.
4. 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 the 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.
5. Clock signals
   After applying a reset, only release the reset line after the operating clock signal becomes stable. When switching the clock signal during program execution, wait until the target clock signal is 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. Additionally, 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.
6. Voltage application waveform at input pin
   Waveform distortion due to input noise or a reflected wave may cause malfunction. If the input of the CMOS device stays in the area between V_IL (Max.) and V_IH (Min.) due to noise, for example, the device may malfunction. Take care to prevent chattering noise from entering the device when the input level is fixed, and also in the transition period when the input level passes through the area between V_IL (Max.) and V_IH (Min.).
7. Prohibition of access to reserved addresses
   Access to reserved addresses is prohibited. The reserved addresses are provided for possible future expansion of functions. Do not access these addresses as the correct operation of the LSI is not guaranteed.
8. Differences between products
   Before changing from one product to another, for example to a product with a different part number, confirm that the change will not lead to problems. The characteristics of a microprocessing unit or microcontroller unit products in the same group but having a different part number might differ in terms of 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.

Notice

1. Descriptions of circuits, software and other related information in this document are provided only to illustrate the operation of semiconductor products and application examples. You are fully responsible for the incorporation 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.
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   • "High Quality": Transportation equipment (automobiles, trains, ships, etc.); traffic control (traffic lights); large-scale communication equipment; key financial terminal systems; safety control equipment; etc.
     Unless expressly designated as a high reliability product or a product for harsh environments in a Renesas Electronics data sheet or other Renesas Electronics document, Renesas Electronics products are not intended or 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 damage (space system; 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 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.
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8. When using 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 dissipation characteristics, installation, etc. Renesas Electronics disclaims any and all liability for any malfunctions, failure or accident arising out of the use of Renesas Electronics products outside of such specified ranges.
9. 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. Unless designated as a high reliability product or a product for harsh environments in a Renesas Electronics data sheet or other Renesas Electronics document, Renesas Electronics products are not subject to radiation resistance design. You are responsible for implementing safety measures to guard against the possibility of bodily injury, injury or damage caused by fire, and/or danger to the public in the event of a 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. Because the evaluation of microcomputer software alone is very difficult and impractical, you are responsible for evaluating the safety of the final products or systems manufactured by you.
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Note1: "Renesas Electronics" as used in this document means Renesas Electronics Corporation and also includes its directly or indirectly controlled subsidiaries.

Note2: "Renesas Electronics product(s)" means any product developed or manufactured by or for Renesas Electronics.

Overview

MCB-RX26T Type C is a CPU board for motor control evaluation. By using this product in combination with an inverter board, motor control using RX26T can be easily performed.

Presupposition and precautions of this document

1. Experience of using tools: This document assumes that the user has used terminal emulation program of Integrated Development Environment (IDE) such as e2 studio before.
2. Knowledge about the development subject: This document assumes that the user has a basic knowledge to modify the sample project regarding MCU and embedded system.
3. Before using this product, wear an antistatic wrist strap. If you touch this product with static charge on your body, a device failure may occur, or operation may become unstable.
4. All screen shots provided in this document is for reference. Actual screen displays may differ depending on the software and development tool version which you use.

Product Contents

This kit consists of the following parts.

Figure 2-1 Product contents

1. CPU Board (RTK0EMXE30C00000BJ) x1
2. USB Cable x1
3. Screw x4
4. Standoff x4

Product Order Information

Product number to order MCB-RX26T
Type C: RTK0EMXE30C00000BJ

Hardware Configuration and Default Setting

Hardware configuration

The specifications of the CPU board are shown below.

Table 4-1 CPU board specification:

Block diagram

Figure 4-1 CPU board block diagram

Board Layout

Figure 4-2 CPU Board Layout

Standoffs and Screws

Before using this product, assemble the included standoffs and screws as shown below.

Figure 4-3 Standoffs and Screws assembly

Jumper pin setting

Default settings and functions of the jumper pins (JP1,JP2) and jumper resistor, LPF are as follows.

Table 4-2 Jumper pin setting of CPU board:

Table 4-3 Jumper resistor and LPF setting of CPU board:

-: Can be either open (DNF) or short

DNF : Unmounted

INV1 : an inverter board connected to CN1 and CN2

INV2: an inverter board connected to CN3 and CN4

HV INV : a high voltage inverter board with PFC connected to CN1 and CN2

*1 Inductive position sensor.
*2 3-phase smart gate driver.
*3 INV1, Encoder and Smart driver are available

Figure 4-4 Default jumper pin and jumper resistor, LPF setting

Hardware Setup

Figure 4-5 show a connection example when using this product with the inverter board kit (product name: MCI-LV-1, model name: RTK0EM0000S04020BJ) and the communication board (product name: MC-COM, model name: RTK0EMXC90S00000BJ).

Figure 4-5 Board connection example

CPU Board Specification

This section describes the specification of the CPU Board.

Functions

Power supply

When not connected to the inverter board, power should be supplied from the USB connector. When connecting to the inverter board, power supply from the USB connector or from the inverter board will be automatically selected. USB power supply has priority. The MCU operation voltage can be selected at either 5 V or 3.3 V for this product. The operation voltage is switched with JP1 as shown in Table 4-2.

On-board debugger

This product has the on-board debugger circuit, E2 On-Board (hereinafter called "E2OB"). You can write a program (firmware) of RX26T with it. When you write a program, open (remove) JP2 and connect the CPU board to PC with USB cable. E2OB operates as debugger equivalent to E2 emulator Lite. If connecting from Integrated Development Environment or flash programing tool (e.g. Renesas Flash Programmer), set the type of debugger (tool) to "E2 emulator Lite".
After writing a program, short JP2 for CPU board operation.

Figure 5-1 JP2 setting

Inverter board connector

Max 2 inverter boards can be connected to this product. This product has connecter for 1st inverter board, and through holes for 2nd inverter board. 1st inverter board is connected with CN1 and CN2, and 2nd inverter board is connected with CN3 and CN4. The pin assignments of the connectors are shown in Table 5-1, Table 5-2, Table 5-3, Table 5-4.

Table 5-1 1st inverter board connector (CN1) pin assignment

(*) selected with jumper resister

Table 5-2 1st inverter board connector (CN2) pin assignment

(*) selected with jumper resister

Table 5-3 2nd inverter board connector (CN3) pin assignment

(*) selected with jumper resister

Table 5-4 2nd inverter board connector (CN4) pin assignment

(*) selected with jumper resister

Figure 5-2 show a connection example when using this product with the inverter board and the communication board. When using INV2, mount CN3 and CN4, and mount jumper resistors and LPF according to "Jumper Settings".

Figure 5-2 Board connection of CPU board, INV board and COM board

Serial communication

For serial communication using Renesas Motor Workbench, the CPU board has SCI connector. Pin assignment for SCI connector is listed in Table 5-5.

Table 5-5 SCI connector (CN9) pin assignment:

Reset circuit

This product has a reset circuit to enable power-on reset or external reset on MCU. Push the tact switch (SW1) to externally reset MCU.

LED

This product has 2 controllable LEDs, so that they can be used for program debug and the system. LED switches ON when output from the corresponding port is "LOW" and switches OFF when output is "HIGH". Pin assignment for corresponding LEDs is listed in Table 5-6.

Table 5-6 LED pin assignment:

CAN Communication

This product has through holes for CAN communication. Note that CAN driver is not equipped. Pin assignment for CAN communication connector is listed in Table 5-7.

Table 5-7 CAN communication pin assignment (CN8):

SPI Communication

This product has through holes for SPI communication. Pin assignment for SPI communication connector is listed in Table 5-8.

Table 5-8 SPI communication pin assignment (CN7):

Pmod

This product has two connectors for Pmod module connection. Pin assignments are shown in Table 5-9 and Table 5-10.

Table 5-9 Pmod Type 3A connector pin assignment (CN6):

Table 5-10 Pmod Type 6A connector pin assignment (CN5):

RX26T pin function list

Table 5-11 RX26T pin function list:

Design and Manufacture Information

You can obtain information on the design and manufacture of this product from renesas.com.

Website and Support

Contact information: For further information on a product, technology, the most up-to-date version of a document, or your nearest sales office, please visit:

• www.renesas.com/contact/.
• RX Product Information renesas.com/rx
• Renesas Support renesas.com/support

www.renesas.com

Documents / Resources

References

• Renesas Electronics Corporation | Renesas
• Contact Us | Renesas
• RX 32-Bit Performance / Efficiency MCUs | Renesas
• Technical Support Services | Support Forums & Ticket Assistance - Renesas | Renesas
• Renesas Electronics Corporation | Renesas

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