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User’s Manual U15798EJ2V0UD
Pin Name
I/O
Function
After Reset
Alternate
Function
P00
I/O
Input
INTP0
P01
INTP1
P02
INTP2
P03
INTP3/ADTRG
P04
INTP4
P05
INTP5/PCL
P06
INTP6/TOB0
P07
TOA0/TMIB0
P10 to P17
Input
Port 1
Input
ANI0 to ANI7
8-bit input only port.
P20
I/O
Input
SI3
P21
SO3
P22
SCK3
P23
SI1
P24
SO1
P25
SCK1
P26
RxD0
P27
TxD0
P30
I/O
Input
SCL0
Note 2
P31
SDA0
Note 2
P32
TI51/TO51
P33
TI50/TO50
P34
TI01/TO00
P35
TI00
P40 to P43
I/O
Port 4
Input
—
4-bit I/O port
Input/output mode can be specified in 1-bit units.
An on-chip pull-up resistor can be used by setting software.
Interrupt request flag (KRIF) is set to 1 by falling edge
detection.
Notes 1.
µ
PD780344Y, 780354Y Subseries and flash memory version cannot use an on-chip pull-up resistor.
2.
µ
PD780344Y, 780354Y Subseries only.
CHAPTER 2 PIN FUNCTIONS
2.1 Pin Function List
(1) Port pins (1/2)
Port 0
8-bit I/O port
Input/output mode can be specified in 1-bit units.
An on-chip pull-up resistor can be used by setting software.
Port 2
8-bit I/O port
Input/output mode can be specified in 1-bit units.
An on-chip pull-up resistor can be used by setting software.
5 V N-ch open-drain I/O port.
LEDs can be driven directly.
On-chip pull-up resistor can be
specified by mask option
(mask ROM version of the
µ
PD780344, 780354 Subseries
only)
Note 1
.
An on-chip pull-up resistor can be
used by setting software.
Port 3
6-bit I/O port
Input/output mode
can be specified in 1-
bit units.