CHAPTER 1 INTRODUCTION
38
User’s Manual U15109EJ3V0UD
Pin names (V850/SC1)
A1 to A21:
Address bus
P120 to P127:
Port 12
AD0 to AD15:
Address/data bus
P130 to P133:
Port 13
ADCGND:
Ground for analog
P140 to P147:
Port 14
ADCV
DD
Power supply for analog
P150 to P157:
Port 15
ADTRG:
A/D trigger input
P170 to P176:
Port 17
ANI0 to ANI11:
Analog input
RD:
Read strobe
ASCK0 to ASCK3:
Asynchronous serial clock
RESET:
Reset
ASTB:
Address strobe
R/W:
Read/write status
CLKOUT:
Clock output
RXD0 to RXD3:
Receive data
CPUREG:
Regulator control
SCK0, SCK2 to
DSTB:
Data strobe
SCK6:
Serial clock
GND0 to GND2:
Ground
SCL0, SCL1:
Serial clock
HLDAK:
Hold acknowledge
SDA0, SDA1:
Serial data
HLDRQ:
Hold request
SI0, SI2 to SI6:
Serial input
INTP0 to INTP9:
Interrupt request from peripherals
SO0, SO2 to SO6:
Serial output
KR0 to KR7
:
Key return
TI00, TI01, TI10,
LBEN:
Lower byte enable
TI11, TI100, TI101,
MODE:
Mode
TI110, TI111, TI120,
NMI:
Non-maskable interrupt request
TI121, TI5, TI6, TI70,
PORTGND0,
TI71, TI80, TI81,
PORTGND1:
Ground for ports
TI90, TI91:
Timer input
PORTV
DD0
to
TO0, TO1,
PORTV
DD2
:
Power supply for ports
TO5 to TO12:
Timer output
P00 to P07:
Port 0
TXD0 to TXD3:
Transmit data
P10 to P17:
Port 1
UBEN:
Upper byte enable
P20 to P27:
Port 2
V
DD0
, V
DD1
:
Power supply
P30 to P37:
Port 3
VM45:
V
DD
= 4.5 V monitor output
P40 to P47:
Port 4
V
PP
:
Programming power supply
P50 to P57:
Port 5
WAIT:
Wait
P60 to P65:
Port 6
WRH:
Write strobe high-level data
P70 to P77:
Port 7
WRL:
Write strobe low-level data
P80 to P83:
Port 8
X1, X2:
Crystal for main clock
P90 to P96:
Port 9
XT1, XT2:
Crystal for sub-clock
P100 to P107:
Port 10
P110 to P117:
Port 11