Renesas RX23T Series User manual

User’s Manual
R20UT3698EJ0140 Page
1
of 23
2022.2.21
RX23T CPU Card User’s Manual
For Your Safety
Do not fail to read this manual before using the RX23T CPU card (RTK0EM0003C01202BJ) (the product).
•Follow the indications in this manual when using the product.
•This product is a board with the same specifications as the board included in the “24V Motor Control Evaluation
System for RX23T (RTK0EM0006S01212BJ)”, and is an optional board for the “Evaluation System for BLDC
Motor (RTK0EMX270S00020BJ)”.
•Keep this manual near the product so you can refer to it whenever necessary.
•Transfer or sale of the product to third parties is prohibited without written approval.
•The product does not meet the legal requirements for general product safety (including EMC requirements) for
equipment as stipulated by various countries and regions. The purchaser or importer of the product is responsible for
ensuring compliance with local regulations. In addition, the customer is responsible for ensuring that the product is
handled correctly and safely, in accordance with the laws of the customer’s country (region).
•All information contained in this manual represents information on products at the time of publication of this
manual. Please note that the product data, specification, sales offices, contents of website, address, etc., are subject
to change by Renesas Electronics Corporation without notice due to product improvements or other reasons. Please
confirm the latest information on Renesas Electronics website.
•The manual for the product, and specification (the documents) are the tool that was developed for the function and
performance evaluation of Renesas Electronics semiconductor device (Renesas Electronics device) mounted on the
product, and not guarantee the same quality, function and performance.
•By purchasing the product or downloading the documents from Renesas Electronics website, the support services
provided from Renesas Electronics is not guaranteed.
Meaning of Notations
In this manual items related to the safe use of the product are indicated as described below.
The degree of injury to persons or damage to property that could result if the designated content in this manual is not
followed is indicated as follows.
Danger
Indicates content that, if not followed, could result in death or serious injury*1
to the user, and which is highly urgent.
Warning
Indicates content that, if not followed, could result in death or serious injury to
the user.
Caution
Indicates content that, if not followed, could result in injury*2to persons or
physical damage.*3
Note 1. Serious injury refers to conditions resulting in persistent after-effects and for which treatment would
necessitate hospitalization or regular hospital visits, such as loss or impairment of eyesight, burns
(high- or low-temperature), electric shock, bone fracture, or poisoning.
Note 2. Injury refers to conditions for which treatment would necessitate hospitalization or regular hospital
visits.
Note 3. Physical damage refers to damage affecting the wider surroundings, such as the user’s home or
property.
R20UT3698EJ0140
Rev.1.40
2022.2.21

RX23T CPU Card User’s Manual
R20UT3698EJ0140 Page
2
of 23
2022.2.21
Requirements related to the handling of the product are classified into the following categories.
•Marks indicating that an action is prohibited.
General Prohibition
The indicated action is prohibited.
Example: Do Not Touch!
Touching the specified location could
result in injury.
•Marks indicating that an action is prohibited.
General Caution
Indicates a general need for caution
that is not specified.
Example: Caution –Hot!
Indicates the possibility of injury due to
high temperature.
•Marks directing that the specified action is required.
General Instruction
The specified action is required.
Example: Turn Off (Disconnect) Power
Supply!
Instructs the user to turn off (disconnect)
the power supply to the product.
Warnings Regarding Use of the Product
◼Danger Items
Danger
•The product should be used only by persons (users) having a thorough knowledge of
electrical and mechanical components and systems, a full knowledge of the risks
associated with handling them, and training in inverter motor control and handling motors,
or equivalent skills. Users should be limited to persons who have carefully read the Caution
Items contained in this manual.
•Unlike typical equipment, the product has no protective case to ensure safety, and it
contains moving parts and high-temperature components that could be dangerous. Do not
touch the evaluation board or cables while power is being supplied.
•Carefully check to make sure that there are no pieces of conductive materials or dust
adhering to the board, connectors, and cables.
•There are moving parts, driven by a motor. Do not touch the motor while power is being
supplied.
•Ensure that the motor is insulated and placed in a stable location before supplying power.
Do Not Connect Load to Motor!
•This could cause fire, burns, or injury.

RX23T CPU Card User’s Manual
R20UT3698EJ0140 Page
3
of 23
2022.2.21
◼Warning Items
Warning
Caution –Rotating Parts!
•The system includes a motor. Touching the rotating shaft could cause high-temperature
burns or injury.
Always insert plugs, connectors, and cables securely, and confirm that they are fully
inserted.
•Incomplete connections could cause fire, burns, electric shock, or injury.
Use the power supply apparatus specified in the manual.
•Failure to do so could cause fire, burns, electric shock, injury, or malfunction.
Disconnect the power supply and unplug all cables when the system will not be used for a
period of time or when moving the system.
•Failure to do so could cause fire, burns, electric shock, or malfunction.
•This will protect the system against damage due to lightning.
Use a mechanism (switch, outlet, etc.) located within reach to turn off (disconnect) the power
supply.
•In case of emergency, it may be necessary to cut off the power supply quickly.
Turn off the power supply immediately if you notice abnormal odor, smoke, abnormal sound,
or overheating.
•Continuing to use the system in an abnormal condition could cause fire, burns, or electric
shock.
Do Not Disassemble, Modify, or Repair!
•Doing so could cause fire, burns, electric shock, injury, or malfunction.
Do not use the product for any purpose other than initial evaluation of motor control in a
testing room or lab. Do not integrate the product or any part of it into other equipment. Do
not insert or remove cables or connectors when the product is powered on.
•The product has no safety case.
•Failure to observe the above could cause fire, electric shock, burns, or malfunction.
•The product may not perform as expected if used for other than its intended purpose.
◼Caution Items
Caution
Caution –Hot!
•The motor gets hot. Touching it could cause high-temperature burns.
Follow the procedure specified in the manual when powering the system on or off.
•Failure to do so could cause overheating or malfunction.
Caution –Static Electricity
•Use the antistatic band. Failure to do so could cause malfunction or unstable motion.

RX23T CPU Card User’s Manual
R20UT3698EJ0140 Page
4
of 23
2022.2.21
Overview
The RX23T CPU card (RTK0EM0003C01202BJ) is a board with the same specifications as the RX23T CPU card
(RTK0EM0013C01201BJ) (RX23T-CRD) included in the 24V Motor Control Evaluation System for RX23T
(RTK0EM0006S01212BJ) , and is an optional board for Evaluation System for BLDC Motor.
(RTK0EMX270S00020BJ). An emulator, INV-BRD, and equipment must be provided by the customer.
This user’s manual describes the proper handling of the product.
Target Device
RX23T microcontroller
Related Documents
•RX23T CPU Card Schematic：R12TU0007EJ
•RX23T CPU Card BOM List：R12TU0008EJ
•RX23T CPU Card PWB Pattern Drawing：R12TU0006EJ
•Evaluation System for BLDC Motor User’s Manual：R12UZ0062
•24V Motor Control Evaluation System for RX23T User’s Manual : R20UT3697EJ
Package Contents
Refer to “RX23T CPU Card Information” included with this document.
Abbreviations
Abbreviations
Full Name
Remarks
INV-BRD
Inverter Board
Inverter board included in “Evaluation
System for BLDC Motor” (Board P/N.:
RTK0EM0000B10020BJ)
or
Inverter board included in “24V Motor
Control Evaluation System for RX23T”
(Board P/N.: RTK0EM0001B00012BJ)
E1
E1 emulator
on-chip debugging emulator and flash
programmer
Product No.: R0E000010KCE00
E2 Lite
E2 emulator Lite
on-chip debugging emulator and flash
programmer
Product No.: RTE0T0002LKCE00000R

RX23T CPU Card User’s Manual
R20UT3698EJ0140 Page
5
of 23
2022.2.21
Contents
1. Specifications.................................................................................................................6
1.1 Specification................................................................................................................................6
1.2 Regulatory Compliance Notices................................................................................................7
1.2.1 European Union regulatory notices....................................................................................7
2. Block Diagram................................................................................................................8
3. Layout .............................................................................................................................9
4. Usage ............................................................................................................................10
5. Functions......................................................................................................................11
5.1 Power Supply.............................................................................................................................11
5.2 Connecting the Emulator .........................................................................................................11
5.3 Connecting the Inverter Board ................................................................................................12
5.4 Connecting the SCI...................................................................................................................13
5.5 Hall Sensor Signal Input...........................................................................................................13
5.6 Encoder Signal Input ................................................................................................................14
5.7 Extension of Unused Pins........................................................................................................15
5.8 Reset Circuit..............................................................................................................................15
5.9 Crystal Resonator .....................................................................................................................15
5.10 LEDs ...........................................................................................................................................16
6. Details of RX23T CPU Card..........................................................................................17
6.1 RX23T Features.........................................................................................................................17
6.2 RX23T Pin Assignments...........................................................................................................18
6.3 List of RX23T Pin Functions ....................................................................................................20
7. Caution Items................................................................................................................21
Revision History ..................................................................................................................23

RX23T CPU Card User’s Manual
R20UT3698EJ0140 Page
6
of 23
2022.2.21
1. Specifications
1.1 Specification
Table 1.1 Overview of RX23T CPU Card Specifications
Item
Specification
Product name
RX23T CPU card
Board product No.
RTK0EM0003C01202BJ
Supported inverter board
/ product No.
Supplied with 24V Motor Control Evaluation System for RX23T
24V Inverter Board / RTK0EM0001B00012BJ
Inverter board supplied with Evaluation System for BLDC Motor
/RTK0EM0000B10020BJ
Exterior view
Note: Appearance of actual product may differ from photo.
MCU
Product group
RX23T group
Product No.
R5F523T5ADFM
CPU max.
operating frequency
40 MHz
Bit count
32 bits
Package / Pin count
LFQFP / 64 pins
ROM
128 KB
RAM
12 KB
MCU input clock
Crystal resonator 10 MHz
Input power supply voltage
DC 5 V*1
Selectable among the following:
•Power supply from supported inverter board
•Power supply from supported emulator *2
Supported sensors
Hall sensor, encoder
(through holes provided for signal monitoring test pins)
Supported emulator
E1, E2 Lite
Connectors
•Inverter board connectors 2
•SCI connectors 3
•E1 connector
•Hall sensor signal input connector
•Encoder signal input connector
Switch
MCU external reset switch
LEDs
User control LEDs 2
Operating temperature
Room temperature
Operating humidity
No condensation
Note 1. Supply voltage is DC 3.3V from E2 Lite.
Note 2. Power supply from the supported emulator is only supported for standalone operation. Power
supply from the supported emulator is not supported when the INV-BRD is connected.

RX23T CPU Card User’s Manual
R20UT3698EJ0140 Page
7
of 23
2022.2.21
1.2 Regulatory Compliance Notices
1.2.1 European Union regulatory notices
This product complies with the following EU Directives. (These directives are only valid in the European Union.)
CE Certifications:
・Electromagnetic Compatibility (EMC) Directive 2014/30/EU
EN61326-1 : 2013 Class A
WARNING: This is a Class A product. This equipment can cause radio frequency noise when used in
the residential area. In such cases, the user/operator of the equipment may be required
to take appropriate countermeasures under his responsibility.
・Information for traceability
・Authorised representative
Name: Renesas Electronics Corporation
Address: Toyosu Foresia, 3-2-24, Toyosu, Koto-ku, Tokyo 135-0061, Japan
・Manufacturer
Name: Renesas Electronics Corporation
Address: Toyosu Foresia, 3-2-24, Toyosu, Koto-ku, Tokyo 135-0061, Japan
・Person responsible for placing on the market
Name: Renesas Electronics Europe GmbH
Address: Arcadiastrasse 10, 40472 Dusseldorf, Germany
・Trademark and Type name
Trademark: Renesas
Product name: RX24T CPU Card for Motor Control
Type name: RTK0EM0009C03402BJ
Environmental Compliance and Certifications:
・Waste Electrical and Electronic Equipment (WEEE) Directive 2012/19/EU

RX23T CPU Card User’s Manual
R20UT3698EJ0140 Page
8
of 23
2022.2.21
2. Block Diagram
RX23T
Crystal
Oscillator
Reset
Switch
LED × 2
E1 Connector
(CN1)
SCI1
Connector(CN2)
Encoder Input
connector(CN6)
Hall Input
connector(CN7)
SCI5-1
Connector(CN3)
SCI5-2
Connector(CN4)
IU,IV,IW
Port Output
VBUS,VU,VV,VW
POE Input
PWM Pulse PWM Pulse
Output
VCC(5V) VCC
AD Input
Volume Resistor
Voltage
AD Input
Reset Signal
Through-hole
RX23T CPU Card
Inverter
Board
Connector
(CNB)
Inverter
Board
Connector
(CNA)
LED3
LED1,2
Over Current
External AD Input
AVCC(5V)
Port Output
TXD5/RXD5
TXD5/RXD5
TXD1/RXD1
MD/FINED
Hall signal
Encoder signal
10MHz
Signal*14
Universal
Space(CN5)
AVCC
AD Input
AD Input
Reset
XTAL/EXTAL
Port Input
Port Input
Port
Input/Output
Port
Input/Output
Port
Input/Output
Port
Input/Output
Through-hole
Through-hole
GND
Figure 2.1 RX23T CPU Card Block Diagram

RX23T CPU Card User’s Manual
R20UT3698EJ0140 Page
9
of 23
2022.2.21
3. Layout
RX23T
E1 connector
（CN1）
Reset switch
LEDs
(LED1, LED2)
Encoder signal input
connector（CN6）
Hall sensor signal input
connector （CN7）Universal connector
through holes（CN5）
SCI connector
(CN4)
(For Renesas motor tools)
Crystal resonator
SCI connector
(CN2, CN3)
Figure 3.1 RX23T CPU Card Layout (Top View)
Inverter board
connector (CNA) Inverter board
connector（CNB）
Figure 3.2 RX23T CPU Card Layout (Bottom View)

RX23T CPU Card User’s Manual
R20UT3698EJ0140 Page
10
of 23
2022.2.21
4. Usage
Before connecting to the INV-BRD, be sure to write the software corresponding to the INV-BRD to this product. The
board may be damaged if it is connected to the INV-BRD with the factory default software or with software that is not
compatible with the INV-BRD.
For details on writing software, please refer to 5.2. For the operation of the written software, refer to the application
note of each software.
Please refer to the user's manual of each INV-BRD for the connection method with INV-BRD.