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RL78/G1A CHAPTER 2 PIN FUNCTIONS
2.1.4 64-pin products
(1/3)
Function
Name
Pin
Type
I/O After Reset Alternate Function Function
P00 TI00/(KR0)
P01
8-1-1 Input port
TO00/(KR1)
P02 7-3-2 ANI17/SO10/TxD1/
(KR2)
P03 8-3-2
Analog input port
ANI16/SI10/RxD1/
SDA10/(KR3)
P04 8-1-2 SCK10/SCL10/(KR4)
P05 TI05/TO05/KR8
P06
7-1-1
I/O
Input port
TI06/TO06/KR9
Port 0.
7-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.
Input of P00, P01, P03, and P04 can be set to TTL input
buffer.
Output of P02 to P04 can be set to N-ch open-drain
output (V
DD tolerance).
P02 and P03 can be set to analog input
Note 1
.
P10
ANI18/SCK00/
SCL00/(KR0)
P11
8-3-2
ANI20/SI00/RxD0/
TOOLRxD/SDA00/
(KR1)
P12 ANI21/SO00/TxD0/
TOOLTxD/(KR2)
P13
7-3-2
ANI22/TxD2/SO20/
(KR3)
P14 ANI23/RxD2/SI20/
SDA20/(KR4)
P15
8-3-2
Analog input port
ANI24/SCK20/
SCL20/(KR5)
P16 8-1-1
I/O
Input port TI01/TO01/INTP5
Port 1.
7-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.
Input of P10, P11, and P14 to P16 can be set to TTL
input buffer.
Output of P10 to P15 can be set to N-ch open-drain
output (V
DD tolerance).
P10 to P15 can be set to analog input
Note 1
.
P20
ANI0/AV
REFP
P21
ANI1/AV
REFM
P22
ANI2/(KR5)
P23
ANI3/(KR6)
P24
ANI4/(KR7)
P25
ANI5/(KR8)
P26
ANI6/(KR9)
P27
4-3-1 I/O Analog input port
ANI7
Port 2.
8-bit I/O port.
Input/output can be specified in 1-bit units.
Can be set to analog input
Note 2
.
P30
ANI27/INTP3/
RTC1HZ/SCK11/
SCL11
P31
7-3-2 I/O Analog input port
ANI29/TI03/TO03/
INTP4
Port 3.
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.
Can be set to analog input
Note 1
.
<R>
Notes 1. Digital or analog for each pin can be selected with the port mode control register x (PMCx) (can be set in 1-
bit units).
2. Digital or analog for each pin can be selected with the A/D port configuration register (ADPC).
Remark Functions in parentheses in the above figure can be assigned via settings in the peripheral I/O redirection
register (PIOR). See Figure 4-8 Format of Peripheral I/O Redirection Register (PIOR).
R01UH0305EJ0200 Rev.2.00 26
Jul 04, 2013