36
CHAPTER 2 PIN FUNCTION
Preliminary User’s Manual U14581EJ3V0UM00
(2) Non-port pins
Pin Name
Input/Output
Function
After Reset
Alternate
Function
INTP0 to INTP2
Input
External interrupt request input with specifiable valid edges
Input
P00 to P02
(rising edge, falling edge, and both rising and falling edges).
SI2
Input
Serial interface SIO2 serial data input.
Input
P05
SO2
Output
Serial interface SIO2 serial data output.
Input
P04
SCK2
Input/Output
Serial interface SIO2 serial clock input/output.
Input
P03
SI3
Input
Serial interface SIO3 serial data input.
Input
P52
SO3
Output
Serial interface SIO3 serial data output.
Input
P51
SCK3
Input/Output
Serial interface SIO3 serial clock input/output.
Input
P50
RxD
Input
Asynchronous serial interface serial data input.
Input
P53
TxD
Output
Asynchronous serial interface serial data output.
Input
P54
TI00
Input
Capture trigger signal input to capture register (CR00).
Input
P40
TI01
Capture trigger signal input to capture register (CR01).
P41
TI02
Capture trigger signal input to capture register (CR02).
P42
TIO2
Input/Output
8-bit timer (TM2) input/output (also used for 8-bit PWM output).
Input
P43
TIO3
8-bit timer (TM3) input/output (also used for 8-bit PWM output).
P44
TPO
Output
Prescaler signal output of 16-bit timer (TM0).
Input
PCL/P60
PCL
Output
Clock output (for main system clock trimming).
Input
TPO/P60
SGO
Output
Sound generator signal output.
Input
P61
S0 to S4
Output
Segment signal output of LCD controller/driver.
Output
—
S5 to S12
Input
P97 to P90
S13 to S19
P87 to P81
COM0 to COM3
Output
Common signal output of LCD controller/driver.
Output
—
V
LCD
—
LCD driving power supply.
—
—
SM11 to SM14
Output
Meter control signal output.
Hi-Z
P20 to P23
SM21 to SM24
P24 to P27
SM31 to SM34
P30 to P33
SM41 to SM44
P34 to P37
ANI0 to ANI4
Input
A/D converter analog input.
Input
P10 to P14
AV
REF
Input
A/D converter reference voltage input (shared with analog
—
—
power supply (AV
DD
)).
AV
SS
—
A/D converter ground potential. Connect to V
SS0
.
—
—
RESET
Input
System reset input.
—
—
X1
Input
Crystal connection for main system clock oscillation.
—
—
X2
—
—
—
SMV
DD
—
Power supply for meter controller/driver.
—
—
SMV
SS
—
Ground potential for meter controller/driver.
—
—
V
DD0
—
Port block positive power supply.
—
—
V
SS0
—
Port block ground potential.
—
—
Содержание mPD780852 Series
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