參數(shù)資料
型號: VCT3801A
廠商: MICRONAS SEMICONDUCTOR HOLDING AG
英文描述: Video/Controller/Teletext IC Family
中文描述: 視頻/控制/圖文電視IC系列
文件頁數(shù): 77/172頁
文件大?。?/td> 2243K
代理商: VCT3801A
ADVANCE INFORMATION
VCT 38xxA
Micronas
77
0252 H
Write
BLANKING START
Bit
Reset
Function
all
00 H
horizontal start of blanking pulse or self-timed HSYNC in character increments
correct blanking pulse cannot be guaranteed if blanking start = blanking stop
0254 H
Write
DISPLAY MODE 1
Bit
Reset
Function
7
0
1 = OSD layer always uses FONT 1
0 = OSD layer changes from FONT 1 to FONT 2 if ASCII
20H
6
1
1 = enable OSD layer
0 = disable OSD layer
5
1
1 = active flash phase of OSD layer
0 = inactive flash phase of OSD layer
4
0
1 = 13 scanlines/character
0 = 8 scanlines/character
3 to 0
0
With this scan line the OSD layer starts display of the first text line. By slow incrementing of this value soft
scroll begins.
0255 H
Write
DISPLAY MODE 2
Bit
Reset
Function
7
0
1 = OSD layer control code defines character set
0 = OSD layer control code defines color
3
1
1 = 10.125MHz display clock
0 = 20.25MHz display clock
2
1
1 = font pointer offset 10 scanlines/character
0 = font pointer offset 8 or 16 scanlines/character (depending on bit 1)
1
0
1 = font pointer offset 16 scanlines/character
0 = font pointer offset 8 scanlines/character
0
1
1 = 10 scanlines/character
0 = 8 or 13 scanlines/character (depending on bit 4 in register 0254 H)
025A H
Write
PRIO MODE
Bit
Reset
Function
5 to 3
110
prio code for shadow pixel
2 to 0
101
prio code for normal pixel
025B H
R/W
FB Mode
Bit
Reset
Write Function
Read Function
all
00 H
every read resets status
7
0
color bit 4(color output of OSD layer)
6
0
color bit 3(color output of OSD layer)
4
0
1 = inverted color output
0 = normal color output
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