CHAPTER 1 INTRODUCTION
Pin identification
A0 to A21:
AD0 to AD15:
ANI0 to ANI7:
ANO0, ANO1:
ASCK0:
Address bus
PDL0 to PDL15:
Port DL
Address/data bus
Analog input
RD:
Read strobe
Regulator control
Reset
REGC:
Analog output
Asynchronous serial clock
Address strobe
Analog reference voltage
Ground for analog
Power supply for bus interface
Ground for bus interface
Clock output
RESET:
RTP00 to RTP05:
RXD0, RXD1:
SCK00, SCK01,
SCKA0, SCKA1:
SCL0:
Real-time output port
Receive data
ASTB:
AVREF0, AVREF1:
AVSS:
Serial clock
Serial clock
Serial data
BVDD:
BVSS:
SDA0:
CLKOUT:
SI00, SI01,
SIA0, SIA1:
SO00, SO01,
SOA0, SOA1:
TI000, TI001,
TI010, TI011,
TI020, TI021,
TI030, TI031,
TI50, TI51,
TIP00, TIP01:
TO00 to TO03,
TO50, TO51,
TOH0, TOH1,
TOP00, TOP01:
TXD0, TXD1:
VDD:
CS0, CS1:
EVDD:
Chip select
Serial input
Power supply for port
Ground for port
Flash programming mode
Hold acknowledge
Hold request
EVSS:
Serial output
FLMD0, FLMD1
HLDAK:
HLDRQ:
IC:
Internally connected
External interrupt input
Key return
INTP0 to INTP6:
KR0 to KR7:
NMI:
Timer input
Non-maskable interrupt request
Port 0
P00 to P06:
P10, P11:
P30 to P39:
P40 to P42:
P50 to P55:
P70 to P77:
P90 to P915:
PCM0 to PCM3:
PCS0, PCS1:
PCT0, PCT1,
PCT4, PCT6:
PDH0 to PDH5:
Port 1
Port 3
Timer output
Port 4
Transmit data
Port 5
Power supply
Port 7
VPP:
Programming power supply
Ground
Port 9
VSS:
Port CM
WAIT:
Wait
Port CS
WR0:
Lower byte write strobe
Upper byte write strobe
Crystal for main clock
Crystal for subclock
WR1:
Port CT
Port DH
X1, X2:
XT1, XT2:
35
User’s Manual U16890EJ1V0UD
NEC [ NEC ]
