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UPD78044F Datasheet(PDF) 85 Page - NEC |
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UPD78044F Datasheet(HTML) 85 Page - NEC |
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85 / 472 page  85 Chapter 4 Port Functions User’s Manual U16504EE1V1UD00 Input/ Output P80-P87 Port 8 8-bit input/output port Input/output mode can be specified bit-wise If used an input port, a pull-up resistor can be connected by software This port can be used as a segment signal output port or an I/O port, in an 1-bit units by setting the port function S15-S8 Input Input/ Output P90 Port 9 8-bit input/output port Input/output mode can be specified bit-wise This port can be used as a segment signal output port or an I/O port, in an 1-bit units by setting the LCD control register TI22/S23 Input P91 TO51/TI51/S22 P92 TP0/S21 P93 SCK31/S20 P94 SO31/SIO31/S19 P95 SI31/S18 P96 S17 P97 S16 Table 4-1: Pin Input/Output Types (2/2) Input/ Output Pin Name Function Alternate Function After Reset |
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