RL78/G13 CHAPTER 4 PORT FUNCTIONS
R01UH0146EJ0100 Rev.1.00 260
Sep 22, 2011
(2) Port registers (Pxx)
These registers set the output latch value of a port.
If the data is read in the input mode, the pin level is read. If it is read in the output mode, the output latch value is
read
Note
.
These registers can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears these registers to 00H.
Note If P02, P03, P20 to P27, P35 to P37, P100, P115 to P117, P120, P147, and P150 to P156 are set up as
analog inputs of the A/D converter, when a port is read while in the input mode, 0 is always returned, not the
pin level.
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