NEC uPD75P3116 - 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 <F>-A
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.