Renesas rl78 User Manual

 

RL78/G1A 

 

CHAPTER  4   PORT  FUNCTIONS 

R01UH0305EJ0200  Rev.2.00 

 

 

138  

Jul 04, 2013 

For an output pin to which multiple functions are assigned, the output of the unused alternate functions must be set to 

its initial state so as to prevent conflicting outputs.  This also applies to the functions assigned by using the peripheral I/O 

redirection register (PIOR).  For details about the alternate function output, see 4.5  Register Settings When Using 

Alternate Function. 

No specific setting is required for input pins because the output of their alternate functions is disabled (the buffer output 

is Hi-Z). 

Disabling the unused functions, including blocks that are only used for input or do not have I/O, is recommended for 

lower power consumption. 

 

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