Datasheet

Page 5 Printing and typographical errors reserved.
ELECTRONIC ASSEMBLY reserves the right to change specifications without prior notice.
EA DOGS164-A
preliminary
Bottom view DDRAM
ADDRESS
(0x80+adr)
Top view DDRAM
ADDRESS
(0x80+adr)
Set line count
(RS = 0, R/W = 0)
0x00
0x20
0x40
0x60
0x0F
0x2F
0x4F
0x6F
0x38 ->Function set: DH = 0
0x00
0x20
0x40
0x0F
0x2F
0x4F
0x3A ->Function set: RE = 1
0x1F -> 3 Lines top
0x3C ->Function set: RE = 0, DH = 1
0x00
0x20
0x40
0x0F
0x2F
0x4F
0x3A ->Function set: RE = 1
0x17 -> 3 Lines middle
0x3C ->Function set: RE = 0, DH = 1
0x00
0x20
0x40
0x0F
0x2F
0x4F
0x3A ->Function set: RE = 1
0x13 -> 3 Lines bottom
0x3C ->Function set: RE = 0, DH = 1
0x00
0x20
0x0F
0x2F
0x3A ->Function set: RE = 1
0x1B -> 2 Lines
0x3C ->Function set: RE = 0, DH = 1
SETTING THE CONTRAST
The contrast for the EA DOGS164-A can be set by command. This is done using bits C0 through C5 in
the commands "Contrast Set" and "Power/Icon Control/Contrast Set". Generally, the contrast is set
once only. Thanks to the integrated temperature compensation function, it’s kept constant allover the
entire operating temperature range (-20 to +70°C).
Further information about the commands of the SSD1803A, please refer to the datasheet:
http://www.lcd-module.de/fileadmin/eng/pdf/zubehoer/ssd1803a_2_0.pdf
Contrast set
Command
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Hex
Remark
Function Set
0 0 0 0 1 1 1 0 0 1
$39 8-Bit data length extension Bit RE=0; IS=1
Power control
0 0 0 1 0 1 0 1 1 0
$56 Booster on and set contrast (DB1=C5, DB0=C4)
Contrast Set
0 0 0 1 1 1 1 0 1 0
$7A Set contrast (DB3-DB0=C3-C0)
Function Set
0 0 0 0 1 1 1 0 0 0
$38 8-Bit data length extension Bit RE=0; IS=0
DDRAM ADDRESS / LINE COUNT
The display controller SSD1803A affords the opportunity of double height fonts. The different line
combinationes with its corresponding initialization commands are shown in the following table.
Ehe DDRAM address depends on line count and viewing direction.