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CHAPTER 2 PIN FUNCTIONS
User’s Manual U15075EJ1V0UM00
39
(2)
Non-port pins
Pin Name
I/O
Function
After Reset
Alternate Function
INTP0
P30/CPT90
INTP1
P31/TO50/TMI60
INTP2
P32/TO60
INTP3
Input
External interrupt input for which the valid edge (rising edge,
falling edge, or both rising and falling edges) can be specified
Input
P33/TO61
KR0 to KR3
Input
Key return signal detection
Input
P00 to P03
SS20
Input
Serial interface (SIO20) chip select
Input
P22
SCK20
I/O
Serial interface 20 serial clock input/output
Input
P23/ASCK20
SI20
Input
Serial interface 20 of SIO20 serial data input
Input
P25/RxD20
SO20
Output
Serial interface 20 of SIO20 serial data output
Input
P24/TxD20
ASCK20
Input
Serial clock input for asynchronous serial interface
Input
P23/SCK20
RxD20
Input
Serial data input for asynchronous serial interface
Input
P25/SI20
TxD20
Output
Serial data output for asynchronous serial interface
Input
P24/SO20
TO90
Output
16-bit timer (TM90) output
Input
P26
CPT90
Input
Capture edge input
Input
P30/INTP0
TO50
Output
8-bit timer (TM50) output
Input
P31/INTP1/TMI40
TO60
Output
Input
P32/INTP2
TO61
Output
8-bit timer (TM60) output
Input
P33/INTP33
TMI60
Input
External count clock input to timer 40
Input
P31/INTP1/TO50
ANI0 to ANI5
Input
A/D converter analog input
Input
P60 to P65
S0 to S4
Output
Output
S5 to S14
Note
Output
LCD controller/driver segment signal output
Output
COM0 to COM3
Output
LCD controller/driver common signal output
Output
V
LC0
to V
LC2
LCD driving voltage
CAPH
CAPL
Capacitor connection pin for LCD drive
X1
Input
X2
Connecting crystal resonator for main system clock oscillation
XT1
Input
XT2
Connecting crystal resonator for subsystem clock oscillation
RESET
Input
System reset input
Input
V
DD
Positive power supply
V
SS
Ground potential
AV
DD
A/D converter analog potential
AV
SS
A/D converter analog ground potential
IC
Internally connected. Connect directly to V
SS
.
V
PP
Sets flash memory programming mode. Applies high voltage
when a program is written or verified. Connect directly to V
SS
in
normal operation mode.
Note
μ
PD789446, 789456 Subseries only