EM65571AGH EMC [ELAN Microelectronics Corp], EM65571AGH Datasheet - Page 103

• Manufacturer Part Number: EM65571AGH
• Description: 130COM / 128SEG 65K Color STN LCD Driver
• Manufacturer: EMC [ELAN Microelectronics Corp]

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Product Specification (V1.0) 08.04.2005
(This specification is subject to change without further notice)
Relationship between Setting and Common/Display RAM
The relationship between the COM pin numbers and the addresses in the Y-direction
on the display RAM changes according to the SHIFT command, LCD Duty Set
command, Display Starting Common Position Set command, and Display Starting Line
Set command.
When “0” is selected for the display starting line:
The relationship between the COM pin and the addresses in the vertical direction of the
display RAM (hereafter called MY) changes on a 15-dot basis according to the LCD
Duty Set command and the Display Starting Common Position Set command. The
common positions change in the forward direction when the SHIFT bit is “0”, and
change in the reverse direction when the SHIFT bit is “1”. When “0” is selected as the
value for LA7 to LA0 in the Display Starting Line Set command, the MY number
corresponding to the display starting position is “0”. The MY numbers are sequentially
shifted backward when display occurs. In any case, the relations of COMA = MY160
and COMB = MY161 do not change.
When non-zero is selected for the display starting line:
The relationship between the COM pins and the addresses in the vertical direction on
the display RAM MY changes on a 15-dot basis according to the information in the LCD
Duty Set command and Display Starting Common Position Set command.
common positions change in the forward direction when the SHIFT bit is “0”, and
change in the reverse direction when the SHIFT bit is “1”. If non-zero is selected for the
values for LA7 to LA0 in the Display Starting Line set command. The MY number
corresponding to the display starting position shifts with the set value. The MY number
shifts backward when display occurs. If it exceeds 159, it returns to 0, and then shifts
sequentially. In any case, the relations of COMA = MY160 and COMB = MY161 do not
change.
When you want a mirror image in the Y-direction like the following figure, you must set
additional commands to complete this operation:
WRITE 0xF0 //bank 0
WRITE 0x8D //shift=1 ; 65k color ; display on
WRITE 0x22 //Y address=2
WRITE 0xF4 //bank 4
WRITE 0x63 //SC=0011
130COM/128SEG 65K Color STN LCD Driver
EM65571
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