
found on the manufacturer's web site, or in the Datasheet/VGA DAC folder on the 
5.11.An example of code that drives a VGA display is described in Sections 6.2, 6.3 and 6.4.
Figure 5.13. VGA horizontal timing specification.
VGA mode | 
  | Horizontal Timing Spec | 
  | ||||
  | 
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  | 
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Configuration  | Resolution(HxV)  | a(us)  | b(us)  | c(us)  | d(us)  | Pixel clock(Mhz)  | |
  | 
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VGA(60Hz)  | 640x480  | 3.8  | 1.9  | 25.4  | 0.6  | 25  | (640/c)  | 
  | 
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VGA(85Hz)  | 640x480  | 1.6  | 2.2  | 17.8  | 1.6  | 36  | (640/c)  | 
  | 
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  | 
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SVGA(60Hz)  | 800x600  | 3.2  | 2.2  | 20  | 1  | 40  | (800/c)  | 
  | 
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SVGA(75Hz)  | 800x600  | 1.6  | 3.2  | 16.2  | 0.3  | 49  | (800/c)  | 
  | 
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SVGA(85Hz)  | 800x600  | 1.1  | 2.7  | 14.2  | 0.6  | 56  | (800/c)  | 
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XGA(60Hz)  | 1024x768  | 2.1  | 2.5  | 15.8  | 0.4  | 65  | (1024/c)  | 
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XGA(70Hz)  | 1024x768  | 1.8  | 1.9  | 13.7  | 0.3  | 75  | (1024/c)  | 
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XGA(85Hz)  | 1024x768  | 1.0  | 2.2  | 10.8  | 0.5  | 95  | (1024/c)  | 
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1280x1024(60Hz)  | 1280x1024  | 1.0  | 2.3  | 11.9  | 0.4  | 108  | (1280/c)  | 
  | 
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  | 
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Table 5.9. VGA horizontal timing specification. | 
  | ||||||
VGA mode | 
  | Vertical Timing Spec  | 
  | ||
  | 
  | 
  | 
  | 
  | 
  | 
Configuration  | Resolution (HxV)  | a(lines)  | b(lines)  | c(lines)  | d(lines)  | 
  | 
  | 
  | 
  | 
  | 
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VGA(60Hz)  | 640x480  | 2  | 33  | 480  | 10  | 
  | 
  | 
  | 
  | 
  | 
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VGA(85Hz)  | 640x480  | 3  | 25  | 480  | 1  | 
  | 
  | 
  | 
  | 
  | 
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SVGA(60Hz)  | 800x600  | 4  | 23  | 600  | 1  | 
  | 
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  | 
  | 
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SVGA(75Hz)  | 800x600  | 3  | 21  | 600  | 1  | 
  | 
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  | 
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SVGA(85Hz)  | 800x600  | 3  | 27  | 600  | 1  | 
  | 
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XGA(60Hz)  | 1024x768  | 6  | 29  | 768  | 3  | 
  | 
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XGA(70Hz)  | 1024x768  | 6  | 29  | 768  | 3  | 
  | 
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XGA(85Hz)  | 1024x768  | 3  | 36  | 768  | 1  | 
  | 
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1280x1024(60Hz)  | 1280x1024  | 3  | 38  | 1024  | 1  | 
  | 
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Table 5.10. VGA vertical timing specification.
46