– 10 –
Pin No.
Pin name
I/O
Description
46
XPOWLT
O
Latch signal output to the power control (IC401).
47
RESERVE
O
Not used (Fixed at “H”).
48
XAPC OFF
O
APC mute signal output terminal. “L”: mute
49
–––––––––
—
Not used (open).
50 to 64
SEG14 to SEG0
O
Segment drive signal output to the liquid crystal display.
65 to 68
COM3 to COM0
O
Common drive signal output to the liquid crystal display.
69 to 71
V3 to V1
O
Bias signal output to the liquid crystal display driver.
72, 73
C1, C0
O
Capacitor connected terminal for the liquid crystal display driver voltage-up.
74
STOP
O
VCD control stop signal output terminal. Not used (Fixed at “L”).
75
TEST
I
Test terminal for IC (Fixed at “L”).
76
BBSW
O
ON/OFF control signal output to the headphone amplifier (IC302).
77
–––––––––
—
Not used (open).
System reset signal input from the power control (IC401). “L”: reset
78
RESET
I
For several hundreds msec. after the power supply rises, “L” is input, then it changes to
“H”
79
XIN
I
System clock input terminal.
80
XOUT
—
Not used (OPEN).