34
CHAPTER 2 PIN FUNCTION
Preliminary User’s Manual U16035EJ1V0UM
Pin Name
I/O
Function
After Reset
Alternate
Function
INTP0
Input
Input
P00
INTP1
P01
INTP2
P02
INTP3
P03/ADTRG
SI30
Input
Serial interface serial data input
Input
P20
SI31
P34
SO30
Output
Serial interface serial data output
Input
P21
SO31
P35
SCK30
I/O
Serial interface serial clock input/output
Input
P22
SCK31
P36
RxD0
Input
Asynchronous serial interface serial data input
Input
P23
TxD0
Output
Asynchronous serial interface serial data output
Input
P24
ASCK0
Input
Asynchronous serial interface serial clock input
Input
P25
TI00
Input
External count clock input to 16-bit timer/event counter 0
Input
P70/TO0
Capture trigger input to 16-bit timer/event counter 0 capture
register (CR00, CR01)
TI01
Capture trigger input to 16-bit timer/event counter 0
P71
capture register (CR00)
TI50
External count clock input to 8-bit timer/event counter 50
P72/TO50
TI51
External count clock input to 8-bit timer/event counter 51
P73/TO51
TO0
Output
16-bit timer/event counter 0 output
Input
P70/TI00
TO50
8-bit timer/event counter 50 output
Input
P72/TI50
(also used for 8-bit PWM output)
TO51
8-bit timer/event counter 51 output
P73/TI51
(also used for 8-bit PWM output)
PCL
Output
Clock output (for main system clock and subsystem clock
Input
P74
trimming)
BUZ
Output
Buzzer output
Input
P75
ANI0 to ANI3
Input
A/D converter analog input
Input
P10 to P13
ADTRG
Input
A/D converter trigger signal input
Input
P03/INTP3
AV
REF
Input
A/D converter reference voltage input
—
—
AV
DD
—
A/D converter analog power supply. Connect to V
DD0
or V
DD1
.
—
—
AV
SS
—
A/D converter ground potential. Connect to V
SS0
or V
SS1
.
—
—
RESET
Input
System reset input
Input
—
X1
Input
Crystal connection for main system clock oscillation
—
—
X2
—
—
—
XT1
Input
Crystal connection for subsystem clock oscillation
—
—
XT2
—
—
—
V
DD0
—
Positive power supply for ports
—
—
V
DD1
—
Positive power supply other than ports
—
—
(2) Non-port pins (1/2)
External interrupt request input with specifiable valid edges
(rising edge, falling edge, both rising and falling edges)
