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NEC PD78214 User Manual

Page 39

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10

µ

PD78214 Sub-Series

P00-P07

: Port 0

P20-P27

: Port 2

P30-P37

: Port 3

P40-P47

: Port 4

P50-P57

: Port 5

P60-P67

: Port 6

P70-P75

: Port 7

TO0-TO3

: Timer output

CI

: Clock input

RxD

: Receive data

TxD

: Transmit data

SCK

: Serial clock

ASCK

: Asynchronous serial clock

SBO

: Serial bus

SI

: Serial input

SO

: Serial output

NMI

: Non-maskable interrupt

INTP0-INTP5 : Interrupt from peripherals

AD0-AD7

: Address/data bus

A8-A19

: Address bus

RD

: Read strobe

WR

: Write strobe

WAIT

: Wait

ASTB

: Address strobe

REFRQ

: Refresh request

RESET

: Reset

X1, X2

: Crystal

EA

: External access

AN0-AN7

: Analog input

AV

REF

: Reference voltage

AV

SS

: Analog ground

V

DD

: Power supply

V

SS

: Ground

NC

: Non-connection

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