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RX13T CPU Card User's Manual
5.6
Encoder Signal Input
The product is equipped with an encoder signal input connector. The connector is not mounted at the factory, but a
connector (JST B5B-XH-A) that can be mounted on this terminal is included in this product. Using this connector, you
can input the encoder signal to the RX13T. The signals are pulled up to 5 V and passed through RC filters before being
input to the RX13T. Table 5-5 lists the pin assignments of the signal input connector.
Table 5-5 Pin Assignments of Encoder Signal Input Connector (CN3)
Pin No.
Pin Function
1
5V
2
GND
3
ENC_A
4
ENC_B
5
ENC_Z
5.7
Extension of Unused Pins
To facilitate general use of the product, the unused pins of the RX13T are extended through universal connector through
holes in the board. Table 5-6 lists the pin assignments of the universal area through holes.
Table 5-6 Pin Assignments of Universal Area Through Holes (CN8)
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 (SW1).
5.9
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 5-7 lists the
pin assignments corresponding to the LEDs.
Table 5-7 RX13T CPU Card LED Connection Pin Assignments
Corresponding RX13T Port
PD6
High-level output
Low-level output
PD4
High-level output
Low-level output
R12UZ0051EJ0110
2022.2.21
Pin No.
RX13T Connection Pins
1
VSS
2
AVCC
3
P22
4
VCC
5
P70
6
VSS
LED1
Off
On
-
-
RX13T Connection Pins
VCC
VSS
PB1/MTCLKA
PB0/MTCLKB
PA3/MTIOC1B
LED2
-
-
Off
On
Page 13 of 18
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