Do I need to make some settings as though pin control is possible?

It is possible to use RL78/G13 ports as independent pins. However, please note that although port numbers such as P0 and P13 are defined by a device file, they not are defined up to bit position. Therefore, it is necessary to describe them in the following format.

"Port number" + "." + "bit number".

For example, the assembler statement and C statement for setting bit 0 of P0 to 1 are as follows:

SET1 P0.0 ;     Assembler statement example,

P0.0 = 1; //        C statement example