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Note: The RGB data bus on DE2-115 board is 8 bit instead of 10 bit on DE2/DE2-70 board.
VGA mode
Configuration
VGA(60Hz)
VGA(85Hz)
SVGA(60Hz)
SVGA(75Hz)
SVGA(85Hz)
XGA(60Hz)
XGA(70Hz)
XGA(85Hz)
1280x1024(60Hz)
VGA mode
Configuration
VGA(60Hz)
VGA(85Hz)
SVGA(60Hz)
SVGA(75Hz)
SVGA(85Hz)
XGA(60Hz)
XGA(70Hz)
XGA(85Hz)
1280x1024(60Hz)
Figure 4-22 VGA horizontal timing specification
Table 4-14 VGA Horizontal Timing Specification
Resolution(HxV)
640x480
640x480
800x600
800x600
800x600
1024x768
1024x768
1024x768
1280x1024
Table 4-15 VGA Vertical Timing Specification
Resolution(HxV)
640x480
640x480
800x600
800x600
800x600
1024x768
1024x768
1024x768
1280x1024
Horizontal Timing Spec
a(us)
b(us)
3.8
1.9
1.6
2.2
3.2
2.2
1.6
3.2
1.1
2.7
2.1
2.5
1.8
1.9
1.0
2.2
1.0
2.3
Vertical Timing Spec
a(lines)
b(lines)
c(lines)
2
33
480
3
25
480
4
23
600
3
21
600
3
27
600
6
29
768
6
29
768
3
36
768
3
38
1024
52
c(us)
d(us)
Pixel clock(MHz)
25.4
0.6
25
17.8
1.6
36
20
1
40
16.2
0.3
49
14.2
0.6
56
15.8
0.4
65
13.7
0.3
75
10.8
0.5
95
11.9
0.4
108
d(lines)
Pixel clock(MHz)
10
25
1
36
1
40
1
49
1
56
3
65
3
75
1
95
1
108
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