User manual

6.4. Serial port
Serial port UART0 and serial port UART1 are connected to the RS232 transceiver. These serial ports can optionally be connected to the
RS232 transceiver as well by fitting option resistors. The connections are listed in the Table 6-3.
Description Circuit Net
Name
Function Fit for RS232 Remove for RS232
UART0 *1 LINTXD Secondary Serial Port R48 R46, R47, R65, R66
UART0 *1 LINRXD Secondary Serial Port R49
UART1 *2, *3 TXD1 Default Serial Port R46, R70 R48, R49, R71, R73
UART1 *2, *3 RXD1 Default Serial Port R47, R72
Table 6-3: Serial Port settings
*1: The UART0 port is shared with the LIN module.
*2: The UART1 port is shared with the I/O pin on JA1 application header.
*3: The UART1 port is also available on JA2 application header.
6.5. Hardware LIN
Hardware LIN could be connected to TXD0, RXD0 and CLK0 pins. The connections to be fitted are listed in the Table 6-4.
Description Function Circuit Net
Name
Device
Pin
Fit for
Hardware LIN
Remove for
Hardware LIN
LIN TXD LINTXD 34 R66 R48
LIN RXD LINRXD 33 R65 R49
LIN NSLP LINNSLP 32 R64 -
Table 6-4: Hardware LIN settings
Hardware LIN can be selected as Master or Slave. Resistor selections are listed in the Table 6-5.
Master and Slave Selection
Resistor Master Slave
R67 Fit Remove
R68 Fit Remove
Table 6-5: LIN Master and Slave Selection
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