參數(shù)資料
型號: SED1520D0A
廠商: Electronic Theatre Controls, Inc.
英文描述: DOT MATRIX LCD DRIVER
中文描述: 點陣液晶驅(qū)動
文件頁數(shù): 23/52頁
文件大?。?/td> 204K
代理商: SED1520D0A
S-MOS Systems, Inc. 150 River Oaks Parkway San Jose, CA 95134 Tel: (408) 922-0200 Fax: (408) 922-0238
371-1.0
23
4.0 Commands
4.0 – 4.2
4.0
COMMANDS
Table 3 lists the commands used with the SED1520. This LSI uses a combination of A0, R/W (RD,
WR) to identify a data bus signal. Interpretation and execution of a command depends not on ex-
ternal clock but on internal timing alone. Therefore, a command can be executed so fast that no
busy check is needed.
A detailed description of commands follows.
4.1
This command forces all display to turn on or off.
DISPLAY ON/OFF
D 0 = Display OFF
1 = Display ON
4.2
This command specifies a line address (shown in Fig. 2.3.8.1) thus marking the display line that
corresponds to COM0. Display begins with the specified line address and covers as many lines as match
the display duty in address ascending order. Dynamic line address change with the Display Start Line
command enables column-wise scrolling or page change.
DISPLAY START LINE
– High-order bits
R/W
A0
RD WR
D
7
D
0
0
1
0
1
0
1
0
1
1
1
D
R/W
A0
RD WR
D
7
D
0
0
1
0
1
1
0
A
4
A
3
A
2
A
1
A
0
A4
A3
A2
A1
A0
Line address
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
31
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