RL78/G13 CHAPTER 4 PORT FUNCTIONS
R01UH0146EJ0100 Rev.1.00 274
Sep 22, 2011
Table 4-23. Settings of Port Mode Register, and Output Latch When Using Alternate Function (2/5)
Alternate Function Pin Name
Function Name I/O
PIOR× POM×× PMC×× PM×× P××
TxD2 Output 0 0/1
−
0 1
SO20 Output 0 0/1
−
0 1
(SDAA0) I/O 1 1
−
0 0
(TI04) Input 1
× −
1
×
P13
(TO04) Output 1 0/1
−
0 0
RxD2 Input 0
× −
1
×
SI20 Input 0
× −
1
×
SDA20 I/O 0 1
−
0 1
(SCLA0) I/O 1 1
−
0 0
(TI03) Input 1
× −
1
×
P14
(TO03) Output 1 0/1
−
0 0
Input 0
× −
1
×
SCK20
Output 0 0/1
−
0 1
SCL20 Output 0 0/1
−
0 1
(TI02) Input 1
× −
1
×
P15
Note 3
(TO02) Output 1 0/1
−
0 0
TI01 Input
× − −
1
×
TO01 Output
× − −
0 0
INTP5 Input 0
− −
1
×
(SI00) Input 1
− −
1
×
P16
Note 3
(RxD0) Input 1
− −
1
×
TI02 Input 0
× −
1
×
TO02 Output 0 0/1
−
0 0
(SO00) Output 1 0/1
−
0 1
P17
Note 3
(TxD0) Output 1 0/1
−
0 1
ANI0
Note 2
Input
× − −
1
×
P20
Note 2
AV
REFP
Note 2
Input
× − −
1
×
ANI1
Note 2
Input
× − −
1
×
P21
Note 2
AV
REFM
Note 2
Input
× − −
1
×
P22 to P27
Note 2
ANI2 to ANI7
Note 2
Input
× − −
1
×
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 PIOR×, 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 Notes 2 and 3 are described after the last table.)
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