參數(shù)資料
型號: TDA936X
廠商: NXP Semiconductors N.V.
英文描述: TV signal processor-Teletext decoder with embedded m-Controller
中文描述: 電視信號處理器與嵌入式米圖文電視解碼器控制器
文件頁數(shù): 65/140頁
文件大?。?/td> 570K
代理商: TDA936X
Philips Semiconductors
Preliminary specification
1999 Sep 28
65
TV signal processor-Teletext decoder with
embedded
μ
-Controller
TDA 935X/6X/8X series
at all times, it’s shape is not affected by the italic attribute, therefore it is not advised to use the cursor with italic
characters.
TXT:- The valid range for row is 0 to 24.The valid range for column is 0 to 39.
A B
C
D E F
Figure 29 Cursor display
S
PECIAL
G
RAPHICS
C
HARACTERS
CC/TXT:- Several special characters are provided for improved OSD effects. These characters provide a
choice of 4 colours within a character cell. The total number of special graphics characters is limited to 16.
They are stored in the character codes 8Xh and 9Xh of the character table (32 ROM characters), or in the
DRC’s which overlay character codes 8Xh and 9Xh. Each special graphics character uses two consecutive
normal characters.
Fringing, underline and overline is not possible for special graphics characters. Special graphics characters are
activated when TXT21.OSD_PLANES = 1.
Figure 30 Special Character Example
The example in Figure 30 could be done with 8 special characters.
VOLUME
Background Colour
Foreground Colour 7
Background Colour Serial Attribute
“set at” (Mode 0)
Background Colour
“set after” (Mode 1)
Foreground Colour
Normal Character
Foreground Colour 6
Special Character
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