NEC uPD78P078 User Manual
Page 39
39
CHAPTER 1 OUTLINE (
µ
PD78078 SUBSERIES)
Pin Identifications
A0 to A15
:
Address Bus
AD0 to AD7
:
Address/Data Bus
ANI0 to ANI7
:
Analog Input
ANO0, ANO1
:
Analog Output
ASCK
:
Asynchronous Serial Clock
ASTB
:
Address Strobe
AV
DD
:
Analog Power Supply
AV
REF0
, AV
REF1
:
Analog Reference Voltage
AV
SS
:
Analog Ground
BUSY
:
Busy
BUZ
:
Buzzer Clock
IC
:
Internally Connected
INTP0 to INTP6
:
Interrupt from Peripherals
P00 to P07
:
Port 0
P10 to P17
:
Port 1
P20 to P27
:
Port 2
P30 to P37
:
Port 3
P40 to P47
:
Port 4
P50 to P57
:
Port 5
P60 to P67
:
Port 6
P70 to P72
:
Port 7
P80 to P87
:
Port 8
P90 to P96
:
Port 9
P100 to P103
:
Port 10
P120 to P127
:
Port 12
P130, P131
:
Port 13
PCL
:
Programmable Clock
RD
:
Read Strobe
RESET
:
Reset
RTP0 to RTP7
:
Real-time Output Port
RxD
:
Receive Data
SB0, SB1
:
Serial Bus
SCK0 to SCK2
:
Serial Clock
SI0 to SI2
:
Serial Input
SO0 to SO2
:
Serial Output
STB
:
Strobe
TI00, TI01
:
Timer Input
TI1, TI2, TI5, TI6
:
Timer Input
TO0 to TO2, TO5, TO6 :
Timer Output
TxD
:
Transmit Data
V
DD
:
Power Supply
V
PP
:
Programming Power Supply
V
SS
:
Ground
WAIT
:
Wait
WR
:
Write Strobe
X1, X2
:
Crystal (Main System Clock)
XT1, XT2
:
Crystal (Subsystem Clock)