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RL78/G1A CHAPTER 2 PIN FUNCTIONS
(2/3)
Function
Name
Pin Type I/O After Reset Alternate Function Function
P40 7-1-1 Input port TOOL0
P41 7-3-1 Analog input port ANI30/8TI07/TO07
P42 TI04/TO04
P43
7-1-1
I/O
Input port
−
Port 4.
4-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting at input port.
P41 can be set to analog input
Note
.
P50 7-3-2 ANI26/INTP1/SI11/
SDA11
P51 7-3-1
I/O Analog input port
ANI25/INTP2/SO11
Port 5.
2-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting at input port.
Output of P50 can be set to N-ch open-drain output (V
DD
tolerance).
Can be set to analog input
Note
.
P60
SCLA0
P61
SDAA0
P62
−
P63
12-1-1 I/O Input port
−
Port 6.
4-bit I/O port.
Input/output can be specified in 1-bit units.
N-ch open-drain output (6 V tolerance).
P70 7-3-1 Analog input port
ANI28/KR0/SCK21/
SCL21
P71 7-1-2
KR1/SI21/SDA21
P72
KR2/SO21
P73
7-1-1
KR3/SO01
P74 7-1-2
KR4/INTP8/SI01/
SDA01
P75
KR5/INTP9/SCK01/
SCL01
P76
KR6/INTP10
P77
7-1-1
I/O
Input port
KR7/INTP11
Port 7.
8-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting at input port.
Output of P71 and P74 can be set to N-ch open-drain
output (V
DD tolerance).
P70 can be set to analog input
Note
.
P120 7-3-1 I/O Analog input port
ANI19
P121
X1
P122
X2/EXCLK
P123
XT1
P124
2-2-1 Input Input port
XT2/EXCLKS
Port 12.
1-bit I/O port and 4-bit input only port.
For only P120, input/output can be specified.
For only P120, use of an on-chip pull-up resistor can be
specified by a software setting at input port.
P120 can be set to analog input
Note
.
P130 1-1-1 Output Output port
−
P137 2-1-2 Input Input port INTP0
Port 13.
1-bit output port and 1-bit input only port.
P140
PCLBUZ0/INTP6
P141
7-1-1 I/O Input port
PCLBUZ1/INTP7
Port 14.
2-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting at input port.
<R>
Note Digital or analog for each pin can be selected with the port mode control register x (PMCx) (can be set in 1-bit
units).
R01UH0305EJ0200 Rev.2.00 27
Jul 04, 2013