SSD1783 Solomon Systech, SSD1783 Datasheet - Page 42

• Manufacturer Part Number: SSD1783
• Description: LCD Driver
• Manufacturer: Solomon Systech

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Example: In the Center screen scroll of 1/128 duty (display range: 128 lines = 32 blocks)
Description
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Solomon Systech
29
30
39
40
41
DDRAM:
0
1
2
Set Area Scroll
8 lines (block 0 and block 1) is specified for the top fixed area
8 lines (block 40 & block 41) are specified for the bottom fixed area
112 lines (block 2 to block 29) are specified the scroll area
40 lines (block 30 to block 39) are specified the background areas
Set area scroll mode – Center screen mode
Set Scroll start (Scroll range form 02H ~ 0DH)
Top block address =
Bottom block address
= Top block address + (number of lines in scroll area/4) – 1
= 2 + (112 / 4) –1
= 2 + 28 – 1 = 29
Number of specified block
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=
=
Figure 9 - GDDRAM updates for area scrolling
Number of lines in top fixed area / 4
8 / 4
2
= 41 – (number of lines in bottom fixed area / 4)
= 41 – (8 / 4)
= 41 – 2
= 39
Jul 2005
P 42/79 Rev 1.4
Fixed area
Scroll area
Background area
LCD panel
Command
AA H
ABH
32 blocks
= 128 line
Display area
SSD1783 Series
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Data
02 H
27 H
1D H
00 H
02 H
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