msm6222b Oki Semiconductor, msm6222b Datasheet - Page 31

• Manufacturer Part Number: msm6222b
• Description: Msm6222b Dot Matrix Lcd Controller With 16-dot Common Driver And 40-dot Segment Driver
• Manufacturer: Oki Semiconductor

¡ Semiconductor
(8) DD RAM address setting
(7) CG RAM address setting
(9) DD RAM and CG RAM data write
Generate biases externally and input them to the MSM6222B-xx (V
and V
When the number of biases is 4, input the same potential to V
time, when the OSC oscillation frequency is 250 kHz, is 40 ms.
When E
display move as described in "(5) Cursor and display shift". The execution time, when
the OSC oscillation frequency is 250 kHz, is 40 ms.
the DD RAM address is set.
to C
until the DD RAM address is set.
starting from DD RAM selection.
values among "00" to "4F" (hex.).
"00" to "27" (hex.) or "40" to "67" (hex.).
read of character codes to and from the DD RAM.
When CG RAM addresses, bits C
Write/read of the character pattern to and from the CPU begins with addresses, bits C
The execution time, when the OSC oscillation frequency is 250 kHz, is 40 ms.
When the DD RAM addresses D
Write/read of the character code to and from the CPU begins with addresses D
In the 1-line display mode (N = H), however, D
Likewise, in the 2-line mode, D
When any value other than the above is input, it is impossible to make a normal write/
The execution time, when the OSC oscillation frequency is 250 kHz, is 40 ms.
Instruction code
Instruction code
Instruction code
0
, starting from CG RAM selection.
5
).
7
to E
0
(binary) codes are written to the DD RAM or CG RAM, the cursor and
R/W
R/W
R/W
L
L
L
RS
RS
RS
H
L
L
DB
DB
DB
E
H
L
7
7
7
7
DB
DB
DB
6
D
E
H
6
to D
6
5
6
6
6
6
to D
to C
DB
DB
DB
D
C
E
0
5
5
5
0
0
5
5
5
(binary) must be set to one of the values among
(binary), are set, the CG RAM is specified, until
(binary) are selected, the DD RAM is specified
DB
DB
DB
D
C
E
4
4
4
4
4
4
DB
DB
DB
C
D
E
6
3
3
3
3
3
3
to D
DB
DB
DB
C
D
E
2
2
2
0
2
2
2
(binary) must be set to one of the
DB
DB
DB
D
C
E
1
1
1
1
1
1
DB
DB
DB
D
C
E
2
0
0
0
0
0
0
and V
DD
3
. The execution
MSM6222B-xx
, V
1
, V
2
, V
6
31/45
3
to D
, V
4
5
0
,