µPD75236
1. PIN FUNCTIONS
1.1 PORT PINS (1/2)
Pin Name
P00
P01
P02
P03
P10
P11
P12
P13
P20
P21
P22
P23
P30 *2
P31 *2
P32 *2
P33 *2
*2
P40 to P43
*2
P50 to P53
P60
P61
P62
P63
P70
P71
P72
P73
I/O
Input
Input
Input/
output
Input/
output
Input/
output
Input/
output
Input/
output
Input/
output
Dual-
Function Pin
Function
8-Bit
Input / Output
I/O After Reset Circuit Type *1
INT4
SCK0
SO0/SB0
SI0/SB1
INT0
INT1
INT2
TI0
4-bit input port (PORT0).
Built-in pull-up resistor can be specified in 3-bit
×
units by software for P01 to P03.
Noise removing
function available
4-bit input port (PORT1).
×
Built-in pull-up resistor can be specified in 4-bit
units by software.
Input
Input
B
F –A
F –B
M–C
B –C
PTO0
—
PCL
BUZ
4-bit input/ output port (PORT2).
Built-in pull-up resistor can be specified in 4-bit
×
units by software.
Input
E–B
—
Programmable 4-bit input/ output port (PORT3).
—
Input/ output specifiable in 1-bit units.
×
Input
—
Built-in pull-up resistor can be specified in 4-bit
units by software.
—
E–C
N-ch open-drain 4-bit input/output port (PORT4).
High level
(when a pull-
—
Pull-up resistor can be incorporated in 1-bit units
(mask option).
up resistor is
incorporated)
M
10 V withstand voltage with open drain.
or high
impedance
q
N-ch open-drain 4-bit input/ output port (PORT5).
High level
(when a pull-
—
Pull-up resistor can be incorporated in 1-bit units
(mask option).
up resistor is
incorporated)
M
or high
10 V withstand voltage with open drain.
impedance
—
Programmable 4-bit input/output port (PORT6).
—
Input/output specifiable in 1-bit units.
Built -in pull-up resistor can be specified in 4-bit
—
units by software.
Input
E–C
—
q
—
—
4-bit input/output port (PORT7).
VSS level
(when a pull-
Built-in pull-down resistor can be incorporated in
down resistor
V
—
is incorpo-
1-bit units (mask option).
rated) or high
impedance
—
* 1. Schmitt trigger inputs are circled.
2. Can drive LED directly.
7