Altera LCD Multimedia HSMC Manual do Utilizador descarregar pdf (Página 35)

2–27 Altera Corporation

LCD Multimedia HSMC August 2008

Interfaces/ Connectors

1 On the LCD Multimedia HSMC users still need to multiplex the

VGA synchronization and RGB data to fit the VGA TDM block

input timing as mentioned in Figure 2–6 and Figure 2–7. The

timing protocol of the VGA TDM controller is similar to the

LCD

TDM controller. The input color data bus HC_VGA_DATA

changes from 8-bit to 10-bit, and the VGA TDM controller uses

the HC_VGA_HS to determine the position of the BLUE color

sample.

Figure 2–15. V.G.A. Horizontal Timing Specification

Table 2–20. VGA Horizontal Timing Specification

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 (640/c)

VGA(85Hz) 640x480 1.6 2.2 17.8 1.6 36 (640/c)

SVGA(60Hz) 800x600 3.2 2.2 20 1 40 (800/c)

SVGA(75Hz) 800x600 1.6 3.2 16.2 0.3 49 (800/c)

SVGA(85Hz) 800x600 1.1 2.7 14.2 0.6 56 (800/c)

XGA(60Hz) 1024x768 2.1 2.5 15.8 0.4 65 (1024/c)

XGA(70Hz) 1024x768 1.8 1.9 13.7 0.3 75 (1024/c)

XGA(85Hz) 1024x768 1.0 2.2 10.8 0.5 95 (1024/c)

1280x1024(60Hz) 1280x1024 1.0 2.3 11.9 0.4 108 (1280/c)

Table 2–21. VGA Vertical Timing Specification

Configuration Resolution (HxV) a(lines) b(lines) c(lines) d(lines)

VGA(60Hz) 640x480 2 33 480 10

VGA(85Hz) 640x480 3 25 480 1

SVGA(60Hz) 800x600 4 23 600 1

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 50 51

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