45
CHAPTER 2 PIN FUNCTIONS
User’s Manual U15798EJ2V0UD
Pin Name
I/O
Function
After Reset
Alternate
Function
S0 to S11
Output
LCD controller/driver segment signal output
Output
—
(Static and dynamic display can be selected)
S12 to S19
LCD controller/driver segment signal output
P80 to P87
S20 to S27
(for dynamic display)
P90 to P97
S28 to S35
P100 to P107
S36 to S39
P110 to P113
COM0 to
Output
LCD controller/driver common signal output
Output
—
COM3
(for dynamic display)
SCOM0
Output
LCD controller/driver common signal output
Output
—
(for static display)
V
LC0
to V
LC2
—
LCD driving voltage
—
—
• V
LC0
: Three times V
LC2
output voltage
• V
LC1
: Two times V
LC2
output voltage
• V
LC2
: Reference voltage
CAPH, CAPL
—
Booster capacitor connection for LCD drive voltage
—
—
RESET
Input
System reset 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
—
—
V
SS0
—
Ground potential for ports
—
—
V
SS1
—
Ground potential other than ports
—
—
IC
—
Internally connected. Connect directly to V
SS0
or V
SS1
.
—
—
V
PP
—
High-voltage application for program write/verify
—
—
(2) Non-port pins (2/2)
Содержание mPD780344 Series
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