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-8-
Pin
No.
Signal name
In/Out
Description
Standby
;
power off
47
H16
Out
LCD
backplate
signal. High impedance during
standby.
4-level pulse during
displaying.
48
Vs
In
LCD power supply. High during
standby.
Clock stop
level
in
Vs
state.
49
Vo rs
In
LCD power supply. High during standby. Clock stop
l
e vel in
low
state.
50
Vee
In
LCD power
supply.
Low at all
times.
51
Voe
Out
LCD power
supply.
High during standby. Clock stop level in low
state.
52
VGG
In
Power
supply.
Low at all
times.
53
08
In/Out
Data bus
line.
Normally
high
impedance.
54
07
In/Out
Data bus
line.
Normall
y
high impedance.
55
06
In/Out
Data bus
line.
Normally
hi
g h
impedance.
56
05
In/Out
Data
bus
line. Normally
hi
g h impedance.
57
04
In/Out
Data bus
line.
Normally high impedance.
58
03
In/Out
Data bus l
i
ne.
Normally high impedance.
59
02
In/Out
Data bus
line.
Normally high impedance.
60
01
In/Out
Data bus line. Normally high
impedance.
61
F05
Out
32 K ROM chip enable.
-
62
F04
Out
SIO
[SD].
Transmit data. Low during standby (buffered by gate
all
e y).
63
F03
Out
BUSY signal. Interface output port.
64
F02
Out
DOUT (Data
Out).
Data output
port
to
peripheral.
65
F01
Out
Application ROM chip enable
output
(provided on the RAM card connector).
66
808
Out
RAM, DISP-LSI
enable signal.
67
807
Out
(A14) address bus
line.
High during
standby.
68
806
Out
(A13) address bus
line.
High during
standby.
69
805
Out
(A 12) address bus I ine. High during standby.
70
804
Out
(A 11) address bus
line.
Hi
g h during
standby.
71
803
Out
(A10) address bus l
i
ne.
High during standby.
72
802
Out
(A9) address bus line. High during
standby.
73
801
Out
(AS) address bus
line.
Hi
g h during
standby.
74
A08
Out
(A7) address bus l
i
ne.
High
during
standby.
75
A07
Out
(A6) address bus
line.
High during
standby.
76
A06
Out
(AS) address bus line. High during
standby.
77
A05
Out
(A4) address bus
line.
High
duri
n g
standby.
78
A04
Out
(A3) address bus
line.
High during
standby.
79
A03
Out
(A2)
address
bus
line.
High during
standby.
80
A02
Out
(A 1) address bus line. High during
standby.
-
PC-1350
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