參數資料
型號： TDA935X
廠商： NXP Semiconductors N.V.
英文描述： TV signal processor-Teletext decoder with embedded m-Controller
中文描述： 電視信號處理器與嵌入式米圖文電視解碼器控制器
文件頁數： 66/140頁
文件大?。?/td> 570K
代理商： TDA935X
Philips Semiconductors
Preliminary specification
1999 Sep 28
66
TV signal processor-Teletext decoder with
embedded
μ
-Controller
TDA 935X/6X/8X series
If the screen colour is transparent (implicit in mixed mode) and inside the object the box attribute is set, then
the object is surrounded by video. If the box attribute is not set the background colour inside the object will also
be displayed as transparent.
Character and Attribute Coding
This section describes the character and attribute coding for each mode.
CC M
ODE
Character coding is split into character oriented attributes (parallel) and character group coding (serial). The
serial attributes take effect either at the position of the attribute (set at), or at the following location (set after)
and remain effective until either modified by a new serial attribute or until the end of the row. A serial attribute
is represented as a space (the space character itself however is not used for this purpose), the attributes that
are still active, e.g. overline and underline will be visible during the display of the space.
The default setting at the start of a row is:
1x size
flash OFF
overline OFF
underline OFF
italics OFF
Display mode = superimpose
fringing OFF
background colour duration = 0
end of row = 0
The coding is done in 12 bit words. The codes are stored sequentially in the display memory. A maximum of
768 character positions can be defined for a single display.
Plane
1
0
0
1
1
Plane
0
0
1
0
1
Colour Allocation
Background Colour
Foreground Colour
CLUT entry 6
CLUT entry 7
Table 19 Special character colour allocation
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