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(2) Non-port pins (2/2)
Pin Name
I/O
S0 to S11
Output
S12 to S19
S20 to S27
S28 to S35
S36 to S39
COM0 to
Output
COM3
SCOM0
Output
V
to V
—
LC0
LC2
CAPH, CAPL
—
RESET
Input
X1
Input
X2
—
XT1
Input
XT2
—
V
—
DD0
V
—
DD1
V
—
SS0
V
—
SS1
IC
—
V
—
PP
CHAPTER 2 PIN FUNCTIONS
Function
LCD controller/driver segment signal output
(Static and dynamic display can be selected)
LCD controller/driver segment signal output
(for dynamic display)
LCD controller/driver common signal output
(for dynamic display)
LCD controller/driver common signal output
(for static display)
LCD driving voltage
• V
: Three times V
output voltage
LC0
LC2
• V
: Two times V
output voltage
LC1
LC2
• V
: Reference voltage
LC2
Booster capacitor connection for LCD drive voltage
System reset input
Crystal connection for main system clock oscillation
Crystal connection for subsystem clock oscillation
Positive power supply for ports
Positive power supply other than ports
Ground potential for ports
Ground potential other than ports
Internally connected. Connect directly to V
High-voltage application for program write/verify
User's Manual U15798EJ2V0UD
After Reset
Output
Output
Output
—
—
—
—
—
—
—
—
—
—
—
or V
.
—
SS0
SS1
—
Alternate
Function
—
P80 to P87
P90 to P97
P100 to P107
P110 to P113
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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