參數(shù)資料
型號(hào)： TDA935X
廠商： NXP Semiconductors N.V.
英文描述： TV signal processor-Teletext decoder with embedded m-Controller
中文描述： 電視信號(hào)處理器與嵌入式米圖文電視解碼器控制器
文件頁數(shù)： 64/140頁
文件大?。?/td> 570K
代理商： TDA935X
Philips Semiconductors
Preliminary specification
1999 Sep 28
64
TV signal processor-Teletext decoder with
embedded
μ
-Controller
TDA 935X/6X/8X series
.
Figure 27 South and Southwest Fringing
M
ESHING
The attribute effects the background colour being displayed. Alternate pixels are displayed as the background
colour or video.The structure is offset by 1 pixel from scan line to scan line, thus achieving a checker board
display of the background colour and video.
TXT:- There are two meshing attributes one that only affects black background colours TXT4.BMESH and a
second that only affects backgrounds other than black TXT4.CMESH. A black background is defined as CLUT
entry 8, a none black background is defined as CLUT entry 9 to 15.
CC:- The setting of the Mesh bit in REG0:Display Control has the effect of meshing any background colour.
Figure 28 Meshing and Meshing/Fringing(South+West)
Note: There is a restriction on the use of fringing (shadowing) when combined with meshing. This applies to both
black and coloured meshing. The limitation is that when meshing is enabled, only the text pixels will be fringed
and video pixels are displayed without fringing.
C
URSOR
The cursor operates by reversing the background and foreground colours in the character position pointed to
by the active cursor position. The cursor is enabled using TXT7.CURSOR ON. When active, the row the cursor
appears on is defined by TXT9.R<4:0> and the column is defined by TXT10.C<5:0>. The position of the cursor
can be fixed using TXT9.CURSOR FREEZE
CC:- The valid range for row is 0 to 15. The valid range for column is 0 to 47. The cursor remains rectangular
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