Performs initialization necessary to perform the UART communication.
Remark
This API function is used as an internal function of R_SAUm_Create.
For this reason, there is
normally no need to call it from a user program.
[Syntax]
void R_UARTn_Create ( void );
Remark n is the channel number.
[Argument(s)]
None.
[Return value]
None.