UPD78044F datasheet(28/472 Pages) NEC

28 / 472 page

Chapter 1

Outline (µPD780828A Subseries)

User’s Manual U16504EE1V1UD00

Pin Identifications

P00 to P03

Port 0

SGO

Sound Generator Output

P10 to P14

Port 1

SGOA

Sound Generator Amplitude

P20 to P27

Port 2

SGOF

Sound Generator Frequency

P34 to P37

Port 3

PCL

Programmable Clock Output

P40 to P47

Port 4

SM11 to SM14

Meter Controller/Driver

P50 to P57

Port 5

SM21 to SM24

Meter Controller/Driver

P60 to P65

Port 6

SM31 to SM34

Meter Controller/Driver

P80 to P87

Port 8

SM41 to SM44

Meter Controller/Driver

P90 to P97

Port 9

SMVDD

Meter Controller/Driver

INTP0 to INTP2

Interrupt from Peripherals

SMVSS

Meter Controller/Driver

TI50, TI51

Timer Input

S0 to S27

Segment Output

TI20 to TI22

Timer Input

COM0 to COM3

Common Output

TO51, TO52

Timer Output

X1, X2

Crystal (Main System Clock)

TPO

Timer Output

RESET

:Reset

CRXD

CAN Receive Data

ANI0 to ANI4

Analog Input

CTXD

CAN Transmit Data

AVSS

Analog Ground

CCLK

CAN Clock

AVDD/AVREF

Analog Reference Voltage and

SI30, SI31

Serial Input

ADC Power Supply

SO30, SO31

Serial Output

VDD0, VDD1

Power Supply

SCK30, SCK31

:Serial Clock

VPP

Programming Power Supply

SIO31

Serial Input/Output

VSS0, VSS1

Ground

RXD0

Receive Data

Internally Connected

TXD0

Transmit Data

UPD78044F Datasheet(PDF) 28 Page - NEC

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