SBC-C31
SBC-C31 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by D.T. - Copyright © 2021 SECO S.p.A.
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3.3.11
I2C T/S Connector
SBC-C31 by RK3399 SoC allows the control of a display touch screen by using a dedicated I2C Interface,
completed with an Interrupt line and a Reset output.
The dedicated connector is type MOLEX p/n 53398-0671 or equivalent.
Mating connector: MOLEX 51021-0600 receptacle with MOLEX 50079-8000 female crimp terminals.
The functionality is integrated and controlled directly from RK3399 SoC.
The connector CN50 type and his pin-out is shown here.
The signals available on this connector are exactly the same available on LVDS connector CN40. Please look at par.3.3.4 for
their description.
3.3.12
CAN Connectors
SBC-C31 board can offer up to two CAN Interfaces compliant to CAN specifications rel. 2.0 part B. The
transceiver used is designed for high-speed (up to 1Mbps) CAN applications, and also offers improved EMC
and ESD performances.
CAN Bus Connectors are 3-pin single line SMT connectors, type MOLEX 53398-0371 or equivalent, with pinout
shown in the table on the left.
Mating connector: MOLEX 51021-0300 receptacle with MOLEX 50079-8000 female crimp terminals.
A 120 termination resistor can be placed between CAN_H_1 and CAN_L_1 signals. It can be connected or
disconnected from the line by using JP2 jumper (Jumper inserted = termination connected).
A 120 termination resistor can be placed between CAN_H_2 and CAN_L_2 signals. It can be connected or
disconnected from the line by using JP3 jumper (Jumper inserted = termination connected).
Signals Description:
CAN_H_x: High-Level CAN bus line
CAN_L_x: Low-Level CAN bus line
I2C Touch Connector CN50
Pin Signal
1
+3.3V_RUN
2
TOUCH_INT#
3
I2C_SDA
4
I2C_SCL
5
TOUCH_RST
6
GND
CAN Bus #1 Connector CN55
Pin Signal
1
CAN_H_1
2
GND
3
CAN_L_1
CAN Bus #2 Connector CN56
Pin Signal
1
CAN_H_2
2
GND
3
CAN_L_2
