UPD78P322K datasheet(11/56 Pages) NEC

Part #	UPD78P322K

Description	16/8-BIT SINGLE-CHIP MICROCONTROLLER

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Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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µPD78P322

11

1.

PIN FUNCTIONS

1.1 Normal Operating Mode

(1)

Port Pins

Pin Name Input/Output

Function

Alternate

Function

P00-P07

Input/Output

PORT0

RTP0-RTP7

(Output)

8-bit input/output port

Input or output mode can be specified bit-wise.

The port can also operate as a real-time output port.

P20

Input

PORT 2

NMI

P21

8-bit input-only port

INTP0

P22

INTP1

P23

INTP2

P24

INTP3

P25

INTP4

P26

INTP5

P27

INTP6/TI

P30

Input/Output

PORT 3

TxD

P31

5-bit input/output port

RxD

P32

Input or output mode can be specified bit-wise.

SO/SB0

P33

SI/SB1

P34

SCK

P40-P47

Input/Output

PORT 4

AD0-AD7

8-bit input/output port

Input or output mode can be specified in 8-bit units.

P50-P57

Input/Output

PORT 5

A8-A15

8-bit input/output port

Input or output mode can be specified bit-wise.

P70-P77

Input

PORT 7

AN0-AN7

8-bit input-only port

P80

Input/Output

PORT 8

TO00

P81

6-bit input/output port

TO01

P82

Input or output mode can be specified bit-wise.

TO02

P83

TO03

P84

TO10

P85

TO11

P90

Input/Output

PORT 9

RD

P91

4-bit input/output port

WR

P92

Input or output mode can be specified bit-wise.

TAS

P93

TMD

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UPD78P322K Datasheet(PDF) 11 Page - NEC

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