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About port-related register setting of non-mounted terminal

Last Updated:01/16/2018

Question:

Are the settings to bits of port-related registers, of which some pins are not provided, necessary?

Answer:

Basically, the settings to these bits are not required.
That is, for example, in the following case: the P00 bit exists in the P0 register, but the P01 to P07 bits do not exist in that register.
When writing a value to these bits, write an initial value.
However, please be sure to write an appropriate value based on the user's manual for the product you use.
Suitable Products
RL78/F12
RL78/F13
RL78/F14
RL78/F15
RL78/D1A
RL78/G13
RL78/G14