
RL78/G13
CHAPTER 4 PORT FUNCTIONS
R01UH0146EJ0100 Rev.1.00
202
Sep 22, 2011
Table 4-9. Settings of Registers When Using Port 5
Pin Name
Name
I/O
PM5
×
PIM5
×
POM5
×
Alternate Function Setting
Note 5
Remark
Input
1
×
0
CMOS output
P50
Output
0
1
SDA11 output = 1
Note 1
N-ch O.D. output
Input
1
×
P51
Output
0
SO11 output = 1
Note 1
Input
1
×
0
SO31 output = 1
Note 2
CMOS output
P52
Output
0
1
N-ch O.D. output
1
0
×
CMOS input
Input
1
×
TTL input
0
×
0
CMOS output
P53
Output
0
×
1
SDA31 output = 1
Note 2
N-ch O.D. output
1
0
×
CMOS input
Input
1
×
TTL input
0
×
0
CMOS output
P54
Output
0
×
1
SCK31/SCL31 output = 1
Note 1
N-ch O.D. output
1
0
×
CMOS input
Input
1
×
TTL input
0
×
0
CMOS output
P55
Output
0
×
1
(SCK00 output = 1
Note 3
)
(PCLBUZ1 output = 0
Note 4
)
N-ch O.D. output
Input
1
P56, P57
Output
0
Notes 1.
To use P50 as a general-purpose port in 24- to 100-pin products or to use P51 as a general-purpose port
in 30- to 100-pin products, set serial channel enable status register 0 (SE0), serial output register 0 (SO0)
and serial output enable register 0 (SOE0) to the default status.
2.
P52/SO31, P53/SI31/SDA31, P54/SCK31/SCL31 as a general-purpose port, set serial channel enable
status register 1 (SE1), serial output register 1 (SO1) and serial output enable register 1 (SOE1) to the
default status.
3.
To use P55 as a general-purpose port when PIOR1 = 1, set serial channel enable status register 0 (SE0),
serial output register 0 (SO0) and serial output enable register 0 (SOE0) to the default status.
4.
To use P55 as a general-purpose port when PIOR4 = 1, set clock output select registers 1 (CKS1) to the
default status.
5.
The descriptions in parentheses indicate the case where PIORx = 1.
Remark
×:
don’t care
PM5
×:
Port mode register 5
PIM5
×:
Port input mode register 5
POM5
×:
Port output mode register 5
PIOR
×:
Peripheral I/O redirection register
<R>