SED1520D0A Datasheet, PDF (23/52 Pages) List of Unclassifed Manufacturers – DOT MATRIX LCD DRIVER

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 DISPLAY ON/OFF
This command forces all display to turn on or off.
R/W
A0 RD WR D7
D0
0 1 0 1 0 1 0 1 1 1D
D 0 = Display OFF
1 = Display ON
4.2 DISPLAY START LINE
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.
R/W
A0 RD WR D7
01011
D0
0 A4 A3 A2 A1 A0
– High-order bits
A4 A3 A2 A1 A0
0
0
0
0
0
0
0
0
0
1
—
—
1
1
1
1
1
Line address
0
1
—
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