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(5) LCD controller (IC322)
Pin
Signal
In/Out H/L
No.
name
Character generation character out
1
MD0
IN
data
Character generation character out
2
MD1
IN
data
Character generation character out
3
MD2
IN
data
Character generation character out
4
MD3
IN
data
Character generation character out
5
MD4
IN
data
Character generation character out
6
MD5
IN
data
Character generation character out
7
MD6
IN
data
Character generation character out
8
MD7
IN
data
9
MD8
IN
ARAM attribute code data
10
MD9
IN
ARAM attribute code data
11
MD10
IN
ARAM attribute code data
12
MD11
IN
ARAM attribute code data
13
MD12
IN
ARAM attribute code data
14
MD13
IN
ARAM attribute code data
15
MD14
IN
ARAM attribute code data
16
MD15
IN
ARAM attribute code data
17
VCC1
Power (5V)
18
—
19
—
20
—
21
—
22
LU3
OUT
Image data on LCD
23
LU2
OUT
Image data on LCD
24
LU1
OUT
Image data on LCD
25
LU0
OUT
Image data on LCD
26
M
OUT
H LCD drive output AC conversion signal
Timing signal showing start of one
27
FLM
OUT
H
frame
28
CL1
OUT
H Display data latch signal
29
CL2
OUT
H Display data shift signal
Signal to use the IC low speed
30
SK0
IN
H
ROM/RAM when displaying a large
screen.
Signal to use the IC low speed
31
SK1
IN
H
ROM/RAM when displaying a large
screen.
32
VCC2
Power source (5V)
Reference clock of internal operation
33
DCLK
IN
of the LCD controller
34
MCLK
OUT
Clock showing the memory cycle
35
—
36
—
37
GND2
38
RES
IN
L
Reset signal for the LCD controller
Signal to make access to the internal
39
CS
IN
L
register of the LCD controller.
Selection of the address register and
40
RS
IN
the data register of the LCD controller.
Function
9 – 21
Pin
Signal
In/Out H/L
No.
name
Stroke signal for the CPU to read/write
41
F (WR)
IN
L
from/to the internal register of the LCD
controller.
Controls data transmission direction
42 R/W (RD)
IN
L
between the CPU and the LCD
controller.
Data communication line between the
43
DB0
LCD controller and the CPU
Data communication line between the
44
DB1
LCD controller and the CPU
Data communication line between the
45
DB2
LCD controller and the CPU
Data communication line between the
46
DB3
LCD controller and the CPU
Data communication line between the
47
DB4
LCD controller and the CPU
Data communication line between the
48
DB5
LCD controller and the CPU
Data communication line between the
49
DB6
LCD controller and the CPU
Data communication line between the
50
DB7
LCD controller and the CPU
Determines whether the character
51
BLE
IN
blank is effective or not in the
character unit attribute.
52
MODE
IN
Used to specify the image mode.
53
ON/OFF
IN
Used to turn on/off the LCD display.
Signal to select the normal display and
54
WIDE
IN
the double width display.
55
D/S
IN
Used to select screens.
56
LS
IN
Used to specify the large screen.
57
AT
IN
—
Signal to select the graphic display
58
G/C
IN
and the character display.
59
GND1
60
RA4
OUT
Raster address output
61
RA3
OUT
Raster address output
62
RA2
OUT
Raster address output
63
RA1
OUT
Raster address output
64
RA0
OUT
Raster address output
65
MA15
OUT
Memory address output
66
MA14
OUT
Memory address output
67
MA13
OUT
Memory address output
68
MA12
OUT
Memory address output
69
MA11
OUT
Memory address output
70
MA10
OUT
Memory address output
71
MA9
OUT
Memory address output
72
MA8
OUT
Memory address output
73
MA7
OUT
Memory address output
74
MA6
OUT
Memory address output
75
MA5
OUT
Memory address output
76
MA4
OUT
Memory address output
77
MA3
OUT
Memory address output
78
MA2
OUT
Memory address output
79
MA1
OUT
Memory address output
80
MA0
OUT
Memory address output
Function
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