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： 63/140頁
文件大小： 570K
代理商： TDA935X
Philips Semiconductors
Preliminary specification
1999 Sep 28
63
TV signal processor-Teletext decoder with
embedded
μ
-Controller
TDA 935X/6X/8X series
B
ACKGROUND
D
URATION
The attribute when set takes effect from the current position until to the end of the text display defined in the
MMR REG4:Text Area End.
CC:- The background duration attribute (see Table 21 Serial Mode 1, bit 8) in combination with the End Of Row
attribute (see Table 21 Serial Mode 1, bit 9) forces the background colour to be display on the row until the end
of the text area is reached
TXT:- This attribute is not available.
U
NDERLINE
The underline attribute causes the characters to have the bottom scan line of the character cell forced to fore-
ground colour, including spaces. If background duration is set, then underline is set until the end of the text
area
CC/OSD:- The underline attribute (see Table 21 Serial Mode 0/1, bit 4) is valid from the time set until end of row
or otherwise modified.
TXT:- This attribute is not available, Row length is fixed to 40 characters.
O
VERLINE
The overline attribute causes the characters to have the top scan line of the character cell forced to foreground
colour, including spaces. If background duration is set, then overline is set until the end of the text area
CC/OSD:- The overline attribute (see Table 21 Serial Mode 0/1, bit 5) is valid from the time set until end of row
or otherwise modified. Over-lining of Italic characters is not possible
TXT:- This attribute is not available.
E
ND OF
R
OW
CC/OSD:- The number of characters in a row is flexible and can determined by the end of row attribute (see
Table 21 Serial Mode 1, bit 9).There must exist a space character 20H between the End of Row attribute and
the start of the subsequent display row. The maximum number of characters positioned displayed is deter-
mined by the setting of the MMR REG2:Text Position Horizontal and the MMR REG4:Text Area End.
TXT:- This attribute is not available, Row length is fixed at 40 characters.
F
RINGING
A fringe (shadow) can be defined around characters. The fringe direction is individually selectable in any of the
North, South, East and West direction using REG3:Fringing Control. The colour of the fringe can also be defined
as one of the entries in the CLUT, again using REG3:Fringing Control.
CC/OSD:- The fringe attribute (see Table 21 Serial Mode 0, bit 9) is valid from the time set until the end of the
row or otherwise modified.
TXT:- The display of fringing in TXT mode is controlled by the TXT4.SHADOW bit. When set all the
alphanumeric characters being displayed are shadowed, graphics characters are not shadowed.
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