NEC 78K0 User Manual page 39

Pin Identification
A8 to A15: Address bus
AD0 to AD7: Address/data bus
ANI0 to ANI7: Analog input
ASTB: Address strobe
AV : Analog reference voltage
REF
AV : Analog ground
SS
BUSY0: Serial busy input
BUZ: Buzzer output
EV : Power supply for port
DD
EV : Ground for port
SS
IC: Internally connected
INTP0 to INTP7: External interrupt input
KR0 to KR7: Key return
P00 to P06: Port 0
P10 to P17: Port 1
P20 to P27: Port 2
P30 to P33: Port 3
P40 to P47: Port 4
P50 to P57: Port 5
P60 to P67: Port 6
P70 to P77: Port 7
P120: Port 12
P130: Port 13
P140 to P145: Port 14
PCL: Programmable clock output
Note SO11, SI11, SCK11, SSI11, TI001, TI011, and TO01 are available only in the
78F0148.
CHAPTER 1 OUTLINE
REGC:
RESET:
RxD0, RxD6:
RD:
SCK10, SCK11
SCKA0:
Note
SI10, SI11 , SIA0:
Note
SO10, SO11
SOA1:
Note
SSI11 :
STB0:
TI000, TI010,
Note
TI001 , TI011
TI50, TI51:
Note
TO00, TO01
TO50, TO51,
TOH0, TOH1:
TxD0, TxD6:
V :
DD
V :
PP
V :
SS
WAIT:
*
WR:
X1, X2:
XT1, XT2:
User's Manual U15947EJ2V0UD
Regulator capacitance
Reset
Receive data
Read strobe
Note
,
Serial clock input/output
Serial data input
,
Serial data output
Serial interface chip select input
Serial strobe
Note
,
Timer input
,
Timer output
Transmit data
Power supply
Programming power supply
Ground
Wait
Write strobe
Crystal oscillator (X1 input clock)
Crystal oscillator (Subsystem clock)
µ
PD780146, 780148, and
39