Communication; Uart/Lin; Uart-Transmission - Renesas V850E2/Px4 Manual

Chapter 3
Chapter 3
Note

3.1 UART/LIN

3.1.1
Table 3-1 UARTH signal jumpers
Table 3-2
R20UT0883ED0100 Rev. 1.00
User Manual

Communication

The Starter Kit Board is equipped with five D-Sub connectors, mounted at the left
and right side.
On the left side you can find the two female connectors for FlexRay and one
shared male connector for UART and LIN. On the right side the two female
connectors for CAN are located.
To use one of this communication functions some jumper settings have to be
done. In the following you find the corresponding settings and connector pin outs
for each communication.
All Jumper settings have to be finished before power on.

UART-Transmission

The D-sub connector is shared for UART and LIN communication. For UART
connection jumper P1 must be set according to Table 3-1 to connect the RxD
signal to pin 3 of the connector.
Signal
UART RxD
To avoid any disturbance by the LIN-transceiver, it must be disconnected from
the connector.
By removing all jumpers named in Table 3-2 the LIN-transceiver is fully
disconnected.
UARTH remove jumpers
Signal
LIN INH
LIN NSLP
LIN NWAKE
UART RX EN ¯¯
LIN RxD
Connector Pin #
P1 2 – 3
Connector Pin #
JP2 1 – 2
JP3 1 – 2
JP4 1 – 2
JP5 1 – 2
JP30 1 – 2
Communication
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