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| 型號： | MSM6262-04GS-BK |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 顯示控制器 |
| 英文描述： | 48 X 80 DOTS DOT MAT LCD DRVR AND DSPL CTLR, PQFP80 |
| 封裝： | 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80 |
| 文件頁數(shù)： | 16/53頁 |
| 文件大?。?/td> | 602K |
| 代理商： | MSM6262-04GS-BK |
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Semiconductor
MSM6262-04
23/53
FEDL6262-04-03
6. Cursor/Blink Control Circuit
This is the circuit to control the generation of cursor and its blinking. This circuit is controlled
by the program of the CPU.
The position of the cursor and its blink appears on the position according to the ADC contents,
which correspond to the address of DD RAM. For example, when the ADC is set as "07" (hex.),
the position of cursor and its blinking becomes as follows.
7. Underline Control Circuit
First, either underline display mode or underline blinking mode has to be set by the CPU.
When an instruction to enable the underline function is input from the CPU, the cursor
display shifts to the right direction (increment) or left direction (decrement). Display of
underline appears (or disappears) on the same position where cursor was displayed.
An input of "H" data enables the underline display, while an input of "L" data deletes the
underline.
8. Character Generator ROM (CG ROM)
CG ROM stores the character pattern. MSM6262-04 has 128 kinds of 5 x 7-dot patterns, 96
kinds of 5 x 11-dot patterns and 32 kinds of 5 x 12-dot patterns. The character pattern
corresponds to the character code which is written into the DD RAM.
The relation between 8-bit character code and character pattern is described in Table 1.
When the 8-bit character code of CG ROM is written into the DD RAM, the character pattern
of the corresponding character code of the CG ROM is displayed on the LCD position
corresponding to the DD RAM address.
When all of the upper 4 bits of CG ROM code are "L", CG ROM can be switched to CG RAM.
DB7
DB0
ADC
0
01
11
07
– – –
00
80
01
81
02
82
03
83
04
84
05
85
06
86
07
87
08
88
—
12
3
4
67
8
9
5
Digit
Cursor and its blinking position
79
80
– – –
4E
CE
4F
CF
2-line display
12
3
4
67
8
9
5
Digit
Cursor and its blinking position
4-line display
00 01
02
03 04
05
06
07
08
—
40
80
C0
41
81
C1
42
82
C2
43
83
C3
44
84
C4
45
85
C5
47
87
C7
46
86
C6
48
88
C8
– – –
39
40
26
27
66
67
A6 A7
E6
E7
Note: Cursor display and blinking can be performed even when the CG RAM address is
set in the ADC. So, it is necessary to disable the cursor display and blinking when
the CG RAM address is set in the ADC.
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