NEC uPD75P3116 User Manual
Page 8
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PD75P3116
8
Data Sheet U11369EJ3V0DS
3.1 Port Pins (2/2)
Pin Name
I/O
Alternate
Function
8-Bit
Status
I/O Circuit
Function
I/O
After Reset
Type
Note 1
P60
I/O
KR0/D0
Programmable 4-bit I/O port (Port 6)
—
Input
Input and output can be specified in 1-bit units.
P61
KR1/D1
Connection of an internal pull-up resistor can be
specified by a software setting in 4-bit units.
P62
KR2/D2
P63
KR3/D3
P80
I/O
S23
4-bit I/O port (Port 8)
√
Input
H
Connection of an internal pull-up resistor can be
P81
S22
specified by a software setting in 4-bit units
Note 2
.
P82
S21
P83
S20
P90
I/O
S19
Programmable 4-bit I/O port (Port 9)
Input
H
Connection of an internal pull-up resistor can be
P91
S18
specified by a software setting in 4-bit units
Note 2
.
P92
S17
P93
S16
Notes 1. Circuit types enclosed in angle brackets indicate Schmitt-triggered input.
2. Do not connect an internal pull-up resistor by software when these pins are used as segment signal outputs.