SSD1789A Solomon Systech, SSD1789A Datasheet - Page 41

• Manufacturer Part Number: SSD1789A
• Description: CSTN LCD Driver
• Manufacturer: Solomon Systech

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Part I -Specify the top block address of the scroll + the background areas. Specify the 0
the whole screen scroll. The scroll start block address is also set at this top block address until the scroll start set
command is executed.
Part II – Specify the bottom address of the scroll + background areas. Specify the 32
screen scroll.
Part III – Specify number of scrolled blocks = number of (Top fixed area + scroll area) blocks –1. When the bottom scroll or
whole screen scroll is chosen, the resulted value is identical to the value stated in part II.
Part IV
Specify the area scroll type. Altogether there are four types of area scroll. Please refer to Table 13 for detail.
P41
0
0
1
1
Table 13 - Area scrolling selection modes
Figure 9 - Area scrolling selection modes
The area scroll function is executed by prompt in the set area scroll command following by changing the start block
address by the set scroll start command. The above
Figure 9 illustrates the operation model of the scrolling function.
SSD1789A Series Rev 1.0
Center Screen
P40
0
1
0
1
Types of Area Scroll
Center Screen Scroll
Top Screen Scroll
Bottom Screen Scroll
Whole Screen Scroll
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: Fixed Area
Top Screen
P 41/69 Jul 2004
Bottom Screen
: Scroll Area
Whole Screen Scroll
nd
th
block for the bottom or the whole
block for the top screen scroll or
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