S1D13700F02 Epson Electronics America, Inc., S1D13700F02 Datasheet - Page 90

• Manufacturer Part Number: S1D13700F02
• Description: Embedded Memory Graphics Lcd Controller
• Manufacturer: Epson Electronics America, Inc.

Page 90
12.5.2 Inter-Page Scrolling
S1D13700F02
X42D-A-001-01
Before scrolling
After scrolling
Where:
SADx = start address of screen block x
AP = horizontal address range (REG[06h] bits 7-0, REG[07h] bits 7-0)
C/R = character bytes per row (REG[03h] bits 7-0)
Scrolling between pages and page switching can be performed only if the display memory
capacity is greater than one screen. To scroll down one line/character, add the value of the
horizontal address range (or address pitch), REG[06h] - REG[07h], to the current SADx.
To scroll up, subtract the value of the horizontal address range from SADx.
ABC
WXYZ
WXYZ
Figure 12-15 Inter-Page Scrolling
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Revision 1.01
SAD1
SAD1
ABC
WXYZ
ABC
WXYZ
Epson Research and Development
Display memory
Hardware Functional Specification
C/R
AP
Vancouver Design Center
Issue Date: 2005/11/29
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