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参数资料
| 型号： | SED1225DGB |
| 元件分类： | 显示控制器 |
| 英文描述： | 24 X 60 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC171 |
| 封装： | DIE-171 |
| 文件页数： | 5/39页 |
| 文件大小： | 330K |
| 代理商： | SED1225DGB |
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EPSON
5–13
SED1225 Series
SED1225
Series
The following provides the relationship between the C
and B registers and cursor display.
(C, B) = (0, 0)
(1, 0)
(1, 1)
fBLNK
The cursor display position is indicated by the address
counter. Accordingly, to move the cursor, change the
address counter value by automatic increment by writing
the RAM address set command or RAM data.
The following shows the relationship between the DC
resistor and display:
(1) N=0 (1/26 duty)
. . .
DC=0
DC=1
1st column
12th column
COM1–
1st line
2nd line
3rd line
COM24–
COMMAND
Table 4 lists the supported commands. The SED1225
identifies a data bus by a combination of A0, XWR and
E signals. It features high-speed processing as the
commands are analyzed and executed in the internal
timing only.
Command outline
Command type
Command name
A0
XWR
Display control
Cursor Home
0
instruction
Display On/Off Control
0
Power control
Power Save
0
Power Control
0
System setup
System Setup
0
Address control
Address Setup
0
instruction
Data input
Data Write
1
0
instruction
Table 4
As the execution time of each instruction depends on the
internal processing time of the SED1225, an enough time
greater than the system cycle time (
tcyc) must be assigned
for continuous instruction execution.
Explanation of commands
(1) Cursor Home
The Cursor Home command presets the Address
counter to 30H, and shifts the cursor to column 1
of line 1 if Cursor Display is ON.
(2) Display On/Off Control
The Display On/Off Control command sets the
LCD character and cursor display.
D=0:
Turns the display off.
D=1:
Turns the display on.
DC=0: Selects the standard size display.
DC=1: Selects the double-height vertical display.
B=0:
Turns cursor blinking off.
B=1:
Turns cursor blinking on.
During blinking, the cursor character is alternately
displayed normally and reversely. The normal and
reverse display is repeated approximately every one
second.
C=0:
Does not display the cursor.
C=1:
Displays the cursor.
A0 XWR D7
D0
00
000
1
V
VVV
V : Don’t Care
A0 XWR D7
D0
00
001
1
C
B
DC
D
V : Don’t Care
C
B
Cursor display
0
Not displayed
0
1
Not displayed
1
0
Underbar cursor
11
Alternate character display
normally and reversely
相关PDF资料 |
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|---|---|
| SED1225DAB | 24 X 60 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC171 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SED1278 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CMOS DOT MATRIX LCD CONTROLLER DRIVER |
| SED1278D | 制造商:EPSON 制造商全称:EPSON 功能描述:Dot Matrix LCD Controller Driver |
| SED1278D0A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CMOS DOT MATRIX LCD CONTROLLER DRIVER |
| SED1278D0B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CMOS DOT MATRIX LCD CONTROLLER DRIVER |
| SED1278D0C | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CMOS DOT MATRIX LCD CONTROLLER DRIVER |
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