Renesas RX23T Series User manual

User’s Manual
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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

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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.

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◼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.

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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

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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

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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.

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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

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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

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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)

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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.

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5. Functions
5.1 Power Supply
The product does not have a dedicated power supply connector. When connected to the INV-BRD it draws power via
the connector. When not connected to the INV-BRD, it can draw power via the E1 connector. The product is not
allowed to draw power via the E1 connector when it is connected to the INV-BRD.
5.2 Connecting the Emulator
The E1/E2 Lite on-chip debugging emulator from Renesas Electronics is used to write software (program) to the flash
memory of the RX23T. Software will be downloaded into the product via E1 or E2 Lite. It is also necessary to make the
settings shown in Table 5.1 in the integrated development environment or in the Renesas flash programmer to enable
the emulator to supply power to the product. Table 5.2 lists the pin assignments of the E1 connector.
Table 5.1 E1, E2 Lite Power Supply Settings
Connection to INV-BRD
Power Supply Setting
Connected
Power supply not allowed*1
Not connected
5 V or 3.3V power supply
Note 1. When connected to the INV-BRD, the product must draw power from the INV-BRD.
Table 5.2 Pin Assignments of E1 Connector (CN1)
Pin No.
Pin Function
RX23T
Connection Pins
Pin No.
Pin Function
RX23T
Connection Pins
1
NC
⎯
2
GND
VSS
3
NC
⎯
4
NC
⎯
5
TXD
PD3/TXD1
6
NC
⎯
7
MD/FINED
MD/FINED
8
VCC
VCC
9
NC
⎯
10
NC
⎯
11
RXD
PD5/RXD1
12
GND
VSS
13
RESET
RES#
14
GND
VSS
Note: See a supplement to the E1/E20/E2 emulator, E2 emulator Lite user’s manual.

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5.3 Connecting the Inverter Board
The product connects to the INV-BRD supplied with the Motor RSSK via the inverter board connectors (CNA and
CNB). Table 5.3 and Table 5.4 list the pin assignments of the inverter board connectors.
Table 5.3 Pin Assignments of Inverter Board Connector (CNA)
Pin No.
Pin Function
RX23T
Connection Pins
Pin No.
Pin Function
RX23T
Connection Pins
1
LED1#
P00
2
LED2#
P01
3
LED3#
P31
4
NC
PB4
5
FO#
P70/POE0#
6
NC
⎯
7
WN
P76/MTIOC4D
8
VN
P75/MTIOC4C
9
UN
P74/MTIOC3D
10
WP
P73/MTIOC4B
11
VP
P72/MTIOC4A
12
UP
P71/MTIOC3B
13
SW1#
P91
14
SW2#
P92
15
5V
VCC
16
5V
VCC
17
GND
VSS
18
GND
VSS
19
3.3V
⎯
20
3.3V
⎯
Table 5.4 Pin Assignments of Inverter Board Connector (CNB)
Pin No.
Pin Function
RX23T
Connection Pins
Pin No.
Pin Function
RX23T
Connection Pins
1
AVCC
AVCC
2
AVCC
AVCC
3
NC
⎯
4
NC
⎯
5
IU
P40/AN000
6
IV
P41/AN001
7
IW
P42/AN002
8
VPN
P43/AN003
9
TEMP
P47/AN007
10
VU
P44/AN004
11
VV
P45/AN005
12
VW
P46/AN006
13
VAC
P11/AN016
14
IPFC
P10/AN017*1
15
VR
P10/AN017*1
16
NV
⎯
17
VCCIO
VCC
18
VCCIO
VCC
19
GND
VSS
20
GND
VSS
Note 1. P10/AN017: Selectable between IPFC and VR1 (default: VR1).

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5.4 Connecting the SCI
The product communicates with the SCI via the SCI connectors. There are three SCI connectors: CN2, CN3, and CN4.
Table 5.5 lists their pin assignments. Use CN4 when using tools such as waveform display in combination with INV-
BRD.
Table 5.5 Pin Assignments of SCI Connectors (CN2, CN3, CN4)
Connector No.
Pin No.
Pin Function
RX23T Connection Pins
CN2
SCI1*1
1
5V
VCC
2
RX23T transmit side
PD3/TXD1
3
RX23T receive side
PD5/RXD1
4
GND
VSS
CN3
SCI5-1
1
5V
VCC
2
RX23T transmit side
PB5/TXD5
3
RX23T receive side
PB6/RXD5
4
GND
VSS
CN4
SCI5-2
1
5V
VCC
2
RX23T transmit side
PB2/TXD5
3
RX23T receive side
PB1/RXD5
4
GND
VSS
Note 1. The SCI1 TXD and RXD pins are also used by E1/E2 Lite, so it is not possible to use SCI1 when
the product is connected to the E1/E2 Lite.
5.5 Hall Sensor Signal Input
The product is equipped with a Hall sensor signal input connector. The signal input to the product is pulled up to 5 V
and passed through an RC filter before being input to the RX23T. Table 5.6 lists the pin assignments of the Hall sensor
signal input connector, and Table 5.7 lists connector information.
Table 5.6 Pin Assignments of Hall Sensor Signal Input Connector (CN7)
Pin No.
Pin Function
RX23T Connection Pins
1
5V
VCC
2
GND
VSS
3
HU
P93/IRQ0
4
HV
P94/IRQ1
5
HW
PA2/IRQ4
Table 5.7 Hall Sensor Signal Input Connector Information
Part
Product No.
Manufacturer
Connector (CN7)
XHP-5
J.S.T. Mfg. Co. Ltd. (JST)

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5.6 Encoder Signal Input
The product is equipped with an encoder signal input connector. This makes it possible to input the encoder signal to
the RX23T. The signal input to the product is pulled up to 5 V and passed through an RC filter before being input to the
RX23T. Table 5.8 lists the pin assignments of the signal input connector, and Table 5.9 lists connector information.
Table 5.8 Pin Assignments of Encoder Signal Input Connector (CN6)
Pin No.
Pin Function
RX23T Connection Pins
1
5V
VCC
2
GND
VSS
3
A-phase
P33/MTCLKA
4
B-phase
P32/MTCLKB
5
Z-phase
PA5
Table 5.9 Encoder Signal Input Connector Information
Part
Product No.
Manufacturer
Connector (CN6)
XHP-5
J.S.T. Mfg. Co. Ltd. (JST)

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5.7 Extension of Unused Pins
To facilitate general use of the product, the unused pins of the RX23T are extended through universal connector through
holes in the board. Table 5.10 lists the pin assignments of the universal connector through holes.
Table 5.10 Pin Assignments of Universal Connector Through Holes
Pin No.
RX23T Connection Pins
Pin No.
RX23T Connection Pins
1
AVCC
2
AVCC
3
GND
4
GND
5
P22
6
P23
7
P24
8
P30
9
PA4
10
P02
11
NC
12
NC
13
NC
14
PA3
15
PB0
16
PB3
17
PB7
18
PD4
19
PD6
20
PD7
21
PE2
22
NC
23
UVCC
24
UVCC
25
VSS
26
VSS
5.8 Reset Circuit
The product is equipped with a reset circuit for resetting the microcontroller at power-on reset and external reset. To
apply an external reset to the microcontroller, press the pushbutton (RESET1).
5.9 Crystal Resonator
The microcontroller mounted on the product is connected to a 10 MHz crystal resonator.

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5.10 LEDs
Two LEDs are mounted on the product for use in debugging programs and general system applications. Each turns on
when the output on the corresponding port is low-level and turns off when the output is high-level. Table 5.11 lists the
pin assignments corresponding to the LEDs.
Table 5.11 RX23T CPU Card LED Connection Pin Assignments
Corresponding RX23T Port
LED1
LED2
P00
High-level output
Off
⎯
Low-level output
On
⎯
P01
High-level output
⎯
Off
Low-level output
⎯
On

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6. Details of RX23T CPU Card
6.1 RX23T Features
1. 32-bit microcontroller with RXv2 CPU core for motor control
2. On-chip 32-bit single-precision floating point unit (FPU)
3. Ability to output three-phase complementary PWM waveforms
4. Ability to set timer interrupt as A/D trigger
5. Three 12-bit A/D converter units with a total of 10 channels
6. Channel-dedicated sample and hold function
7. On-chip comparator
8. Timer output stop (Hi-Z) function
9. On-chip independent watchdog timer

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6.2 RX23T Pin Assignments
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
P02/CTS1#/RTS1#/SS1#/ADST0/IRQ5
P00/IRQ2
VCL
P01/CACREF/IRQ4
MD/FINED
RES#
XTAL/P37
VSS
EXTAL/P36
VCC
PE2/POE10#/NMI
PD7/TMRI1/SSLA1
PD6/TMO1/SSLA0/CTS1#/RTS1#/SS1#/ADST0/IRQ5
PD5/TMRI0/RXD1/SMISO1/SSCL1/IRQ3
PD4/TMCI0/SCK1/IRQ2
PD3/TMO0/TXD1/SMOSI1/SSDA1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
P91/SSLA3
P92/TMCI1/SSLA2
P93/MTIOC0B/TMRI1/SCK5/RSPCKA/IRQ0
P94/MTIOC0C/TMO1/MISOA/IRQ1
PA2/MTIOC2B/CTS5#/RTS5#/SS5#/SSLA1/IRQ4
PA3/MTIOC2A/SSLA0
PB0/MTIOC0D/MOSIA
PB1/MTIOC0C/RXD5/SMISO5/SSCL5/SCL0/IRQ2
PB2/MTIOC0B/ADSM0/TXD5/SMOSI5/SSDA5/SDA0
PB3/MTIOC0A/CACREF/SCK5/RSPCKA
VSS
PB4/POE8#/IRQ3
VCC
PB5/TXD5/SMOSI5/SSDA5
PB6/RXD5/SMISO5/SSCL5/IRQ5
PB7/SCK5
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
Figure 6.1 RX23T Pin Assignments (1/2)

RX23T CPU Card User’s Manual
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19
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2022.2.21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
P22/MTIC5W/TMRI2/MISOA/COMP2/IRQ2 P23/MTIC5V/CACREF/TMO2/MOSIA/COMP1/IRQ4 P24/MTIC5U/TMCI2/RSPCKA/COMP0/IRQ3 P30/MTIOC0B/MTCLKD/SSLA0 VSS P31/MTIOC0A/MTCLKC/SSLA1 VCC P32/MTIOC3C/MTCLKB/SSLA2 P33/MTIOC3A/MTCLKA/SSLA3 P70/POE0#/IRQ5 P71/MTIOC3B P72/MTIOC4A P73/MTIOC4B P74/MTIOC3D P75/MTIOC4C P76/MTIOC4D
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
P47/AN007/CMPC12/CMPC22
P46/AN006/CMPC02
P45/AN005/CMPC21
P44/AN004/CMPC11
P43/AN003/CMPC01
P42/AN002/CMPC20
P41/AN001/CMPC10
P40/AN000/CMPC00
AVCC0
VREFH0
VREFL0
AVSS0
P11/MTIOC3A/MTCLKC/TMO3/IRQ1/AN016/CVREFC0
P10/MTCLKD/TMRI3/IRQ0/AN017/CVREFC1
PA5/MTIOC1A/TMCI3/MISOA
PA4/MTIOC1B/RSPCKA/ADTRG0#
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
Figure 6.2 RX23T Pin Assignments (2/2)

RX23T CPU Card User’s Manual
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2022.2.21
6.3 List of RX23T Pin Functions
Table 6.1 List of RX23T Pin Functions
Pin No.
RX23T Pin Functions
CPU Card
Connection
INV-BRD Connection
1
P02/CTS1#/RTS1#/SS1#/ADST0/IRQ5
CN5-10pin
Not connected
2
P00/IRQ2
CNA-1pin
LED1 cathode
3
VCL
Capacitor
connection
Not connected
4
P01/CACREF/IRQ4
CAN-2pin
LED2 cathode
5
MD/FINED
CN1-7pin
Not connected
6
RES#
reset
Not connected
7
XTAL/P37
Crystal resonator
（10MHz）
Not connected
8
VSS
GND
GND
9
EXTAL/P36
Crystal resonator
（10MHz）
Not connected
10
VCC
VCC
VCC
11
PE2/POE10#/NMI
Pull-up/
CN5-21pin
Not connected
12
PD7/TMRI1/SSLA1
CN5-20pin
Not connected
13
PD6/TMO1/SSLA0/CTS1#/RTS1#/SS1#/ADST0/
IRQ5
CN5-19pin
Not connected
14
PD5/TMRI0/RXD1/SMISO1/SSCL1/IRQ3
CN2-3pin/
CN1-11pin
Not connected
15
PD4/TMCI0/SCK1/IRQ2
CN5-18pin
Not connected
16
PD3/TMO0/TXD1/SMOSI1/SSDA1
CN1-5pin/
CN2-2pin
Not connected
17
PB7/SCK5
CN5-17pin
Not connected
18
PB6/RXD5/SMISO5/SSCL5/IRQ5
CN3-3pin
Not connected
19
PB5/TXD5/SMOSI5/SSDA5
CN3-2pin
Not connected
20
VCC
VCC
VCC
21
PB4/POE8#/IRQ3
CNA-4pin
Not connected
22
VSS
VSS
VSS
23
PB3/MTIOC0A/CACREF/SCK5/RSPCKA
CN5-16pin
Not connected
24
PB2/MTIOC0B/ADSM0/TXD5/SMOSI5/SSDA5/S
DA0
CN4-2pin
Not connected
25
PB1/MTIOC0C/RXD5/SMISO5/SSCL5/SCL0/IR
Q2
CN4-3pin
Not connected
26
PB0/MTIOC0D/MOSIA
CN5-15pin
Not connected
27
PA3/MTIOC2A/SSLA0
CN5-14pin
Not connected
28
PA2/MTIOC2B/CTS5#/RTS5#/SS5#/SSLA1/IRQ
4
CN7-5pin
Not connected
29
P94/MTIOC0C/TMO1/MISOA/IRQ1
CN7-4pin
Not connected
30
P93/MTIOC0B/TMRI1/SCK5/RSPCKA/IRQ0
CN7-3pin
Not connected
31
P92/TMCI1/SSLA2
CNA-14pin
Toggle switch (SW2)
32
P91/SSLA3
CNA-13pin
Toggle switch (SW1)
33
P76/MTIOC4D
CNA-7pin
W-phase PWM output
34
P75/MTIOC4C
CNA-8pin
V-phase PWM output
35
P74/MTIOC3D
CNA-9pin
U-phase PWM output
36
P73/MTIOC4B
CNA-10pin
W+phase PWM output