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UPD78044F Datasheet(PDF) 35 Page - NEC

Part # UPD78044F
Description  8-bit Single-Chip Microcontroller
PDF  472 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD78044F Datasheet(HTML) 35 Page - NEC

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35
User’s Manual U16504EE1V1UD00
Chapter 2
Pin Function (µPD780828A Subseries)
2.1 Pin Function List
Normal Operating Mode Pins / Pin Input/Output Types
Table 2-1: Pin Input/Output Types (1/2)
Input/Output
Pin Name
Function
Alternate Function
After
Reset
Input/Output
P00
Port 0
4 bit input / output port
input / output mode can be specified bit-wise
If used as an input port, a pull-up resistor can be
connected by software bit-wise
INTP0
Input
P01
INTP1
Input
P02
INTP2
Input
P03
CCLK
Input
Input
P10-P14
Port 1
5 bit input port
ANI0-ANI4
Input
Input/Output
P20
Port 2
8 bit output port
SM11
Hi-z
P21
SM12
Hi-z
P22
SM13
Hi-z
P23
SM14
Hi-z
P24
SM21
Hi-z
P25
SM22
Hi-z
P26
SM23
Hi-z
P27
SM24
Hi-z
Input/Output
P34
Port 3
4 bit input / output port
input / output mode can be specified bit-wise
If used as an input port, a pull-up resistor can be
connected by software bit-wise
This port can be used as a segment signal output
port or an I/O port in 1 bit unit by setting port function
TI50/TO50/S27
Input
P35
SCK30/S26
Input
P36
SO30/S25
Input
P37
SI30/S24
Input
Input/Output P40-P47
Port 4
8 bit input / output port
input / output mode can be specified bit-wise
If used as an input port, a pull-up resistor can be
connected by software bit-wise
This port can be used as a segment output port or
an I/O port, in 8 bit unit by setting port function
S0-S7
Input
Input/Output
P50
Port 5
8 bit output port
SM31
Hi-z
P51
SM32
Hi-z
P52
SM33
Hi-z
P53
SM34
Hi-z
P54
SM41
Hi-z
P55
SM42
Hi-z
P56
SM43
Hi-z
P57
SM44
Hi-z



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