RX13T CPU Card
User’s Manual
R12UZ0051EJ0100 Rev.1.00
Page 14 of 18
Jul. 22, 2019
5.6
Encoder Signal Input
The product is equipped with an encoder signal input connector. 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
5-6 lists the pin assignments of the signal input connector, and Table 5-7 lists connector information.
Table 5-6 Pin Assignments of Encoder Signal Input Connector (CN3)
Pin No.
Pin Function
RX13T Connection Pins
1
5V
VCC
2
GND
VSS
3
ENC_A
PB1/MTCLKA
4
ENC_B
PB0/MTCLKB
5
ENC_Z
PA3/MTIOC1B
Table 5-7 Encoder Signal Input Connector Information
Part
Product No.
Manufacturer
Connector (CN3)
B5B-XH-A
J.S.T. Mfg. Co. Ltd.
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 5-8 lists the pin assignments of the universal area through holes.
Table 5-8 Pin Assignments of Universal Area Through Holes (CN8)
Pin No.
RX13T Connection Pins
1
VSS
2
AVCC
3
P22
4
VCC
5
P70
6
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 (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 5-9 lists the
pin assignments corresponding to the LEDs.
Table 5-9 RX13T CPU Card LED Connection Pin Assignments
Corresponding RX13T Port
LED1
LED2
PD6
High-level output
Off
-
Low-level output
On
-
PD4
High-level output
-
Off
Low-level output
-
On
