µ
PD75512
8
4. PIN FUNCTIONS
4.1 PORT PINS (1/2)
Input/
Pin
Input/
Shared
Function
8-bit
When Reset
Output
Name
Output
Pin
I/O
Circuit
Type*
1
P00
INT4
4-bit input port (PORT0).
B
For P01 to P03, built-in pull-up
P01
SCK0
resistors can be specified in 3-bit
F
-A
Input
units by software.
x
Input
P02
SO0/SB0
F
-B
P03
SI0/SB1
M
-C
P10
INT0
With noise
elimination function
P11
INT1
Input
4-bit input port (PORT1).
x
Input
B
-C
P12
INT2
Built-in pull-up resistors can be
specified by software in 4-bit units.
P13
TI0
P20
PTO0
4-bit input/output port (PORT2).
P21
Input/
—
Built-in pull-up resistors can be
output
specified by software in 4-bit units.
x
Input
E-B
P22
PCL
P23
BUZ
P30*
2
—
Programmable 4-bit input/output
port (PORT3).
P31*
2
Input/
—
Input/output can be specified in
output
bit units.
x
Input
E-C
P32*
2
—
Built-in pull-up resistors can be
specified by software in 4-bit unit.
P33*
2
—
N-ch open-drain 4-bit input/output
High level
port (PORT4).
(when pull-up
P40 to
Input/
—
A pull-up resistor can be provided
resistor is
M
P43*
2
output
in bit units (mask option).
provided) or
10V withstanding voltage in the
high impedance
open-drain mode.
O
N-ch open-drain 4-bit input/output
High level
port (PORT5).
(when pull-up
P50 to
Input/
—
A pull-up resistor can be provided
resistor is
M
P53*
2
output
in bit units (mask option).
provided) or
10V withstanding voltage in the
high impedance
open-drain mode.
P60
KR0
Programmable 4-bit input/ output
port (PORT6).
P61
Input/
KR1
Input/output can be specified in
output
bit units.
O
Input
F
-C
P62
KR2
Built-in pull-up resistors can be
specified by software in 4-bit units.
P63
KR3
*1: The number enclosed with a circle indicates Schmitt trigger input.
*2: Capable of direct driving on LED.