GDM128128A Datasheet, PDF (8/14 Pages) List of Unclassifed Manufacturers – SPECIFICATIONS OF LCD MODULE

GDM128128A
set address pointer
status check _STA0.1
set address data ^{(lower 8bits)}
status check
set address data (upper 8bits)
status check
command write send set address pointer command
end
2). Set control word
D1 D2 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
X
X
0
1
0
0
0
0
N1 N0
CODE HEX.
FUNCTION
01000000 40H Set text home address
01000001 41H Set text area
01000010 42H Set graphic home address
01000000 43H Set graphic area
D1
Low address
Columns
Low address
Columns
D2
High address
00H
High address
00H
The home address and column size are defined by this command.
Set text home address
The starting address in the external display RAM for text display is defined by this
command.
The text home address indicates the leftmost and uppermost position.
The relationship between external display RAM address and display position
TH
TH +CL
TH+TA
TH+TA+CL
(TH+TA)+TA
TH+2TA+CL
(TH+2TA)+TA
TH+3TA+CL
/
/
TH+(N-1) TA
TH+(N-1) TA+CL
TH: text home address
TA: text area number (columns)
CL: columns ate fixed by hardware (pin-programmable)
Set graphic home address
The starting address of the external display RAM used for graphic display is defined
by this command. The graphic home address indicates the leftmost and uppermost
V: A
8/15
2001/12/05