Datasheet
Page 3
Printing and typographical errors reserved.
ELECTRONIC ASSEMBLY reserves the right to change specifications without prior notice.
EA DIP203-6
CONTRAST ADJUSTMENT
Contrast will be set by pin 3 (VCI).
Module EA DIP203 comes with built-in
temperature compensation for -20..+70°C as a
standard; any contrast adjustment
duringoperation is no longer required.
Adress:
1st. line $00..$13
2nd. line $20..$33
3rd. line $40..$53
4th. line $60..$73
CHARACTER SET
Beside there's a copy of built.in character set. In
addition to that up to 8 individual character can
be created.
Example of initialisation, 8 bit mode and SPI
Command
RE
Bit
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Hex
Note
Function Set 0 0 0 0 0 1 1 0 0 0 0 $30 8 bit data length, extension bit RE=0
Entry Mode Set
0 0 0 0 0 0 0 0 1 1 0
$06 Cursor Auto-Increment
Function Set 0 0 0 0 0 1 1 0 1 1 0 $36 8 bit data length, RE =1, blink enable BE =1
ext. Function Set 1 0 0 0 0 0 0 1 0 0 1 $09 4 line mode
Set SEGRAM adr 100 0 1 0000 0 0 $40 Icon RAM adress: $00
16 x
Write Data
1 1 0 0 0 0 0 0 0 0 0 $00
to clear all icons:
write 16x $00
Function Set
1 0 0 0 0 1 1 0 0 0 0
$30 8 bit data length, bit RE =0
Display ON/OFF 0 0 0 0 0 0 0 1 1 1 1 $0F Display on, Cursor on, Cursor blink
Clear Display 0 0 0 0 0 0 0 0 0 0 1 $01 Clear display, place cursor to 1st. col. /1st. row
Please make shure that software
will check busy-flag before
writing any command !
CREATING YOUR OWN CHARACTERS
All these character display modules got the feature to create 8 own characters (ASCII Codes 0..7) in
addition to the 240 ROM fixed codes.
1.) The command "CG RAM Address Set"
defines the ASCII code (Bit 3,4,5) and the
dot line (Bit 0,1,2) of the new character.
Example demonstrates creating ASCII
code $00.
2.) Doing 8 times the write command "Data
Write" defines line by line the new
character. 8th. byte stands for the cursor
line.
3.) The newly defined character can be used
as a "normal" ASCII code (0..7); use with "DD RAM Address Set" and "Data Write".
Set CG RAM Address Data
Adresse Hex
Bit
Hex
7 6 5 4 3 2 1 0
01000
000 $40
XXX
0 0 1 0 0 $04
001 $41 0 0 1 0 0 $04
010 $42 0 0 1 0 0 $04
011 $43 0 0 1 0 0 $04
100 $44 1 0 1 0 1 $15
101 $45 0 1 1 1 0 $0E
110 $46 0 0 1 0 0 $04
111 $47 0 0 0 0 0 $00
1k
VCI
VDD (3,3V)
VDD (3,3V)