RL78/G13 CHAPTER 4 PORT FUNCTIONS
R01UH0146EJ0100 Rev.1.00 273
Sep 22, 2011
4.5 Settings of Port Mode Register, and Output Latch When Using Alternate Function
To use the alternate function of a port pin, set the port mode register, and output latch as shown in Table 4-23.
Table 4-23. Settings of Port Mode Register, and Output Latch When Using Alternate Function (1/5)
Alternate Function Pin Name
Function Name I/O
PIOR× POM×× PMC×× PM×× P××
P00 TI00 Input
× × −
1
×
P01 TO00 Output
× − −
0 0
ANI17
Note 1
Input
× ×
1 1
×
SO10 Output 0 0/1 0 0 1
P02
TxD1 Output 0 0/1 0 0 1
ANI16
Note 1
Input
× ×
1 1
×
SI10 Input 0
×
0 1
×
RxD1 Input 0
×
0 1
×
P03
SDA10 I/O 0 1 0 0 1
Input 0
× −
1
×
SCK10
Output 0 0/1
−
0 1
P04
SCL10 Output 0 0/1
−
0 1
Input 0
× −
1
×
SCK00
Output 0 0/1
−
0 1
SCL00 Output 0 0/1
−
0 1
(TI07) Input 1
× −
1
×
P10
(TO07) Output 1 0/1
−
0 0
SI00 Input 0
× −
1
×
RxD0 Input 0
× −
1
×
TOOLRxD Input
× × −
1
×
SDA00 I/O 0 1
−
0 1
(TI06) Input 1
× −
1
×
P11
(TO06) Output 1 0/1
−
0 0
SO00 Output 0 0/1
−
0 1
TxD0 Output 0 0/1
−
0 1
TOOLTxD Output
×
0/1
−
0 1
(INTP5) Input 1
× −
1
×
(TI05) Input 1
× −
1
×
P12
(TO05) Output 1 0/1
−
0 0
Remarks 1. ×: don’t care
PIOR×: Peripheral I/O redirection register
POM××: Port output mode register
PMC××: Port mode control register
PM××: Port mode register
P××: Port output latch
2. The relationship between pins and their alternate functions shown in this table indicates the relationship
when a 128-pin product is used. In other products, alternate functions might be assigned to different
pins, but even in this case, the PIORx, POMxx, PMCxx, PMxx, and Pxx set in the same way.
3. Functions in parentheses in the above table can be assigned via settings in the peripheral I/O
redirection register (PIOR).
(The Note 1 is described after the last table.)
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