SED1520D0A Datasheet, PDF (26/52 Pages) List of Unclassifed Manufacturers – DOT MATRIX LCD DRIVER

4.7 – 4.9
4.0 Commands
4.7 READ DISPLAY DATA
This command allows the MPU to read 8 bits of data from the display data RAM location specified
by a column address and a page address. Once the data is read, the column address is automat-
ically incremented by 1; this enables the MPU to read multi-word data continuously.
A dummy read is needed immediately after the column address is set. For details, see 3. (1)–(c).??
R/W
A0 RD WR D7
D0
101
Read data
4.8 SELECT ADC
This command inverts the relation of assignment between display data RAM column addresses
and segment driver outputs. In other words, the Select ADC command can software-invert the or-
der of segment driver output pins, reducing the restrictions on the configuration of ICs at LCD mod-
ule assembly. For details, see Fig. 2.3.8.1.
Incrementing the column address by 1, which takes place after the MPU writing or reading display
data, follows the sequence of column addresses specified in Fig. 2.3.8.1.
A0 RD WR D7
D0
0 1 0 1 0 1 0 0 0 0D
D = 0: Clockwise output (forward)
D = 1: Counterclockwise output (reverse)
4.9 STATIC DRIVE ON/OFF
This command forces all display to be on and, at the same time, all common output to be selected.
R/W
A0 RD WR D7
D0
0 1 0 1 0 1 0 0 1 0D
D = 0: Static drive off
D = 1: Static drive on
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