CHAPTER 4 PORT FUNCTIONS
Port 3 includes the following alternate functions.
Table 4-7. Alternate-Function Pins of Port 3 (V850ES/KF1)
Pin Name
P30
Alternate Function
TXD0
I/O
PULLNote 1
Yes
Remark
Port 3
I/O
–
P31
P32
P33
P34
P35
P38
P39
RXD0
ASCK0
TI000/TO00
TI001
TI010/TO01
SDA0Note 2
SCL0Note 2
NoNote 3
N-ch open-drain output
Notes 1. Software pull-up function
2. Only for products with an I2C bus
3. An on-chip pull-up resistor can be provided by a mask option (only for the mask ROM version of the
V850ES/KF1).
Table 4-8. Alternate-Function Pins of Port 3 (V850ES/KG1, V850ES/KJ1)
Pin Name
P30
Alternate Function
TXD0
I/O
PULLNote
Yes
Remark
Port 3
I/O
–
P31
P32
P33
P34
P35
P36
P37
P38
P39
RXD0
ASCK0
TI000/TO00
TI001
TI010/TO01
–
–
NoNote 2
N-ch open-drain output
SDA0Note 3
SCL0Note 3
Notes 1. Software pull-up function
2. An on-chip pull-up resistor can be provided by a mask option (only for the mask ROM versions of the
V850ES/KG1 and V850ES/KJ1).
3. Only for products with an I2C bus
User’s Manual U15862EJ3V0UD
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NEC [ NEC ]
