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Epson Research and Development

Vancouver Design Center

10.2 Image Manipulation

The figure below shows how screen 1 and screen 2 images stored in the image buffer are positioned on the display. The screen 1 and screen 2 images 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[10h]) defines the starting word of the screen 1, (REG[15h], REG[14h], REG[13h]) defines the starting word of the screen 2.

REG[18h] bits [3:0] define the starting pixel within the starting word for screen 1, REG[18h] bits[7:4] define the starting pixel within the starting word for screen 2.

(REG[0Fh],REG[0Eh]) define the last line of screen 1, the remainder of the display is taken up by screen 2.

Image Buffer

Display

(REG[12h], REG[11h], REG[10h])

 

REG[18h] bits [3:0]

 

Screen 1

((REG[09h], REG[08h])+1) lines

Line 0

 

 

Line 1

 

Screen 1

(REG[15h], REG[14h], REG[13h])

Line (REG[0Fh], REG[0Eh])

REG[18h] bits [7:4]

Screen 2

 

Screen 2

((REG[04h]+1)*8) pixels

 

(REG[17h], REG[16h])

 

Figure 10-3: Image Manipulation

S1D13504

Hardware Functional Specification

X19A-A-002-18

Issue Date: 01/01/30

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Epson S1D13504 manual Image Manipulation, Display, Image Buffer