NEC PD78P054 User Manual

µ

A8 to A15

:

Address Bus

P130, P131

:

Port13

AD0 to AD7

:

Address/Data Bus

PCL

:

Programmable Clock

ANI0 to ANI7

:

Analog Input

RD

:

Read Strobe

ANO0, ANO1

:

Analog Output

RESET

:

Reset

ASCK

:

Asynchronous Serial Clock

RTP0 to RTP7 :

Real-Time Output Port

ASTB

:

Address Strobe

RxD

:

Receive Data

AV

DD

:

Analog Power Supply

SB0, SB1

:

Serial Bus

AV

REF0

, AV

REF1

:

Analog Reference Voltage

SCK0 to SCK2 :

Serial Clock

AV

SS

:

Analog Ground

S10 to S12

:

Serial Input

BUSY

:

Busy

SO0 to SO2

:

Serial Output

BUZ

:

Buzzer Clock

STB

:

Strobe

IC

:

Internally Connected

TI00, TI01

:

Timer Input

INTP0 to INTP6 :

Interrupt from Peripherals

TI1, TI2

:

Timer Input

P00 to P07

:

Port0

TO0 to TO2

:

Timer Output

P10 to P17

:

Port1

TxD

:

Transmit Data

P20 to P27

:

Port2

V

DD

:

Power Supply

P30 to P37

:

Port3

V

PP

:

Programming Power Supply

P40 to P47

:

Port4

V

SS

:

Ground

P50 to P57

:

Port5

WAIT

:

Wait

P60 to P67

:

Port6

WR

:

Write Strobe

P70 to P72

:

Port7

X1, X2

:

Crystal (Main System Clock)

P120 to P127

:

Port12

XT1, XT2

:

Crystal (Subsystem Clock)