RX13T CPU Card
User’s Manual
R12UZ0051EJ0100 Rev.1.00
Page 13 of 18
Jul. 22, 2019
5.4
Serial Communication
The product communicates with the UART via the serial communication connectors. There are three serial
communication connectors: CN5, CN6, and CN7. Table 5-3 lists their pin assignments. Use CN5 when using a tool
such as waveform display in conjunction with the INV-BRD.
Table 5-3 Pin Assignments of Serial Communication Connectors (CN5, CN6, CN7)
Connector No.
Pin No.
Pin Function
RX13T Connection Pins
CN5
(DNF)
1
5V
VCC
2
TX for MCU
PD3/TXD1
3
RX for MCU
PD5/RXD1
4
GND
VSS
CN6
(DNF)
1
5V
VCC
2
TX for MCU
PB6/TXD5
3
RX for MCU
PB7/RXD5
4
GND
VSS
CN7
(DNF)
1
5V
VCC
2
TX for MCU
P23/TXD5
3
RX for MCU
P24/RXD5
4
GND
VSS
5.5
Hall Sensor Signal Input
The product is equipped with a Hall sensor signal input connector. Using this connector, you can input the Hall sensor
signal from the motor supplied with the Motor RSSK directly to the product. The signals are pulled up to 5 V and
passed through RC filters before being input to the RX13T. Table 5-4 lists the pin assignments of the Hall sensor signal
input connector, and Table 5-5 lists connector information.
Table 5-4 Pin Assignments of Hall Sensor Signal Input Connector (CN4)
Pin No.
Pin Function
RX13T Connection Pins
1
5V
VCC
2
GND
VSS
3
HALL_U
P93/IRQ0
4
HALL_V
P94/IRQ1
5
HALL_W
PA2/IRQ4
Table 5-5 Hall Sensor Signal Input Connector Information
Part
Product No.
Manufacturer
Connector (CN5)
B5B-XH-A
J.S.T. Mfg. Co. Ltd.
