sed1355 ETC-unknow, sed1355 Datasheet - Page 133
sed1355
Manufacturer Part Number
sed1355
Description
Sed1355 Embedded Ramdac Lcd/crt Controller
Manufacturer
ETC-unknow
Datasheet
1.SED1355.pdf
(509 pages)
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Epson Research and Development
Vancouver Design Center
10.2 Image Manipulation
Hardware Functional Specification
Issue Date: 99/05/18
(REG[12h], REG[11h], REG[10h])
(REG[15h], REG[14h], REG[13h])
(REG[17h], REG[16h])
REG[18h] bits [3:0]
Image Buffer
Screen 1
REG[18h] bits [7:4]
The figure below shows how Screen 1 and 2 images are stored in the image buffer and positioned
on the display. Screen 1 and Screen 2 can be parts of a larger virtual image or images.
• (REG[17h],REG[16h]) defines the width of the virtual image(s)
• (REG[12h],REG[11h],REG[10]) defines the starting word of the Screen 1,
• REG[18h] bits [3:0] define the starting pixel within the starting word for Screen 1, REG[18h]
• (REG[0Fh],REG[0Eh]) define the last line of Screen 1, the remainder of the display is taken up
Screen 2
(REG[15h],REG[14h],REG[13]) defines the starting word of the Screen 2
bits [7:4] define the starting pixel within the starting word for Screen 2
by Screen 2
Figure 10-3: Image Manipulation
Line 0
Line 1
Line (REG[0Fh], REG[0Eh])
((REG[04h]+1)*8) pixels
Screen 1
Screen 2
Display
((REG[09h], REG[08h])+1) lines
X23A-A-001-11
SED1355
Page 127
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