DE2-115 Datasheet, PDF (53/116 Pages) Altera Corporation – The DE2-115 package contains all components needed to use the DE2-115 board in conjunction with a computer that runs the Microsoft Windows OS.

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
Horizontal Timing Spec
Resolution(HxV)
640x480
a(us)
3.8
b(us)
1.9
c(us) d(us)
25.4 0.6
640x480
1.6
2.2
17.8 1.6
800x600
3.2
2.2
20
1
800x600
1.6
3.2
16.2 0.3
800x600
1.1
2.7
14.2 0.6
1024x768
2.1
2.5
15.8 0.4
1024x768
1.8
1.9
13.7 0.3
1024x768
1.0
2.2
10.8 0.5
1280x1024
1.0
2.3
11.9 0.4
Pixel clock(MHz)
25
36
40
49
56
65
75
95
108
Table 4-15 VGA Vertical Timing Specification
Vertical Timing Spec
Resolution(HxV) a(lines) b(lines) c(lines) d(lines) Pixel clock(MHz)
640x480
2
33
480
10
25
640x480
3
25
480
1
36
800x600
4
23
600
1
40
800x600
3
21
600
1
49
800x600
3
27
600
1
56
1024x768
6
29
768
3
65
1024x768
6
29
768
3
75
1024x768
3
36
768
1
95
1280x1024
3
38
1024 1
108
52