RX66T CPU Card User’s Manual
R12UZ0029EJ0120
Page 13 of 25
2022.2.21
5.4
Connecting the Serial Communication
The product communicates with the UART via the serial communication connectors. There are three serial
communication connectors: CN2, CN4, and CN6. Table 5.5 lists their pin assignments. Use CN6 when using a tool such
as waveform display in conjunction with the INV-BRD.
Table 5.5 Pin Assignments of Serial Communication Connectors (CN2, CN4, CN6)
Connector No.
Pin No.
Pin Function
RX66T Connection Pins
CN2
SCI5
1
5V
VCC
2
RX66T transmit side
PB5/TXD5
3
RX66T receive side
PB6/RXD5
4
GND
VSS
CN4
SCI1
1
5V
VCC
2
RX66T transmit side
PD3/TXD1
*1
3
RX66T receive side
PD5/RXD1
*1
4
GND
VSS
CN6
SCI6
1
5V
VCC
2
RX66T transmit side
PB0/TXD6
3
RX66T receive side
PB1/RXD6
4
GND
VSS
Note 1. TXD / RXD of SCI1 is shared with E1, E2 Lite. Please do not use the SCI1 during E1 or E2 Lite
connection.
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 RX66T. 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 (CN5)
Pin No.
Pin Function
RX66T Connection Pins
1
5V
VCC
2
GND
VSS
3
HU
PE0/IRQ7
4
HV
PE1/IRQ15
5
HW
PE5/IRQ0
Table 5.7 Hall Sensor Signal Input Connector Information
Part
Product No.
Manufacturer
Connector (CN5)
B5B-XH-A
J.S.T. Mfg. Co. Ltd.
