Altera DE1-SoC - Page 35

DE1-SoC User Manual
34
www.terasic.com
March 14, 2014
Figure 3-22 VGA horizontal timing specification
Table 3-14 VGA Horizontal Timing Specification
VGA mode
Horizontal Timing Spec
Configuration
Resolution(HxV)
a(us)
b(us)
c(us)
d(us)
Pixel clock(MHz)
VGA(60Hz)
640x480
3.8
1.9
25.4
0.6
25
VGA(85Hz)
640x480
1.6
2.2
17.8
1.6
36
SVGA(60Hz)
800x600
3.2
2.2
20
1
40
SVGA(75Hz)
800x600
1.6
3.2
16.2
0.3
49
SVGA(85Hz)
800x600
1.1
2.7
14.2
0.6
56
XGA(60Hz)
1024x768
2.1
2.5
15.8
0.4
65
XGA(70Hz)
1024x768
1.8
1.9
13.7
0.3
75
XGA(85Hz)
1024x768
1.0
2.2
10.8
0.5
95
1280x1024(60Hz)
1280x1024
1.0
2.3
11.9
0.4
108
Table 3-15 VGA Vertical Timing Specification
VGA mode
Vertical Timing Spec
Configuration
Resolution(HxV)
a(lines)
b(lines)
c(lines)
d(lines)
Pixel clock(MHz)
VGA(60Hz)
640x480
2
33
480
10
25
VGA(85Hz)
640x480
3
25
480
1
36
SVGA(60Hz)
800x600
4
23
600
1
40
SVGA(75Hz)
800x600
3
21
600
1
49
SVGA(85Hz)
800x600
3
27
600
1
56
XGA(60Hz)
1024x768
6
29
768
3
65
XGA(70Hz)
1024x768
6
29
768
3
75
XGA(85Hz)
1024x768
3
36
768
1
95
1280x1024(60Hz)
1280x1024
3
38
1024
1
108
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