NEC 78K0 User Manual page 22

Pin Identification
ANI0 to ANI7: Analog input
AV : Analog reference voltage
REF
AV : Analog ground
SS
EV : Power supply for port
DD
EV : Ground for port
SS
IC: Internally connected
INTP0 to INTP5: External interrupt input
KR0 to KR3: Key return
P00, P01: Port 0
P10 to P17: Port 1
P20 to P27: Port 2
P30 to P33: Port 3
P60 to P63: Port 6
P70 to P73: Port 7
P120: Port 12
P130: Port 13
22
CHAPTER 1 OUTLINE
RESET:
RxD0, RxD6:
SCK10:
SI10:
SO10:
TI000, TI010,
TI50, TI51:
TO00, TO50, TO51,
TOH0, TOH1:
TxD0, TxD6:
V :
DD
V :
PP
V :
SS
X1, X2:
XT1, XT2:
User's Manual U16227EJ2V0UD
Reset
Receive data
Serial clock input/output
Serial data input
Serial data output
Timer input
Timer output
Transmit data
Power supply
Programming power supply
Ground
Crystal oscillator (X1 input clock)
Crystal oscillator (Subsystem clock)