µ
PD754144, 754244
9
Data Sheet U10040EJ2V1DS
3. PIN FUNCTION
3.1 Port Pins
Pin Name
Input/Output
Alternate
Function
8-bit
After Reset
I/O Circuit
Function
I/O
TYPE
Note 1
P30
Input/Output
PTO0
–
Input
E-B
P31
PTO1
P32
PTO2
P33
–
P60
Input/Output
AV
REF
–
Input
F -A
P61
INT0
P62
PTH00
P63
PTH01
P70
Input
KR4
–
Input
B -A
P71
KR5
P72
KR6
P73
KR7
P80
Input/Output
–
–
Input
F -A
Notes 1.
Circled characters indicate the Schmitt-trigger input.
2.
Do not specify an on-chip pull-up resistor connection when using the programmable threshold port.
Programmable 4-bit input/output port
(PORT3).
This port can be specified input/output bit-
wise.
On-chip pull-up resistor connection can be
specified by software in 4-bit units.
Programmable 4-bit input/output port (PORT6).
This port can be specified input/output bit-
wise.
On-chip pull-up resistor can be specified by
software in 4-bit units
Note2
.
Noise eliminator can be selected with P61/INT0.
4-bit input port (PORT7).
On-chip pull-up resistor can be specified by
software bit-wise.
1-bit input/output port (PORT8).
On-chip pull-up resistor connection can be
specified by software.
*