參數(shù)資料
型號(hào)： SAA5531PS
廠商： NXP Semiconductors N.V.
英文描述： Enhanced TV microcontrollers with On-Screen Display OSD
中文描述： 與微控制器在強(qiáng)化電視屏幕顯示OSD
文件頁(yè)數(shù)： 64/100頁(yè)
文件大小： 371K
代理商： SAA5531PS
2000 Feb 23
64
Philips Semiconductors
Preliminary specification
Enhanced TV microcontrollers with
On-Screen Display (OSD)
SAA55xx
19.4
Character and attribute coding
This section describes the character and attribute coding
for each mode.
19.4.1
CC
MODE
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. overlineandunderlinewillbevisibleduringthedisplay
of the space.
The default setting at the start of a row is:
1
×
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.
19.4.2
TXT
MODE
Character coding is in a serial format, with only one
attribute being changed at any single location. The serial
attributes take effect either at the position of the attribute
(set at), or at the following location (set after). The attribute
remains effective until either modified by new serial
attributes or until the end of the row.
The default settings at the start of a row are:
Foreground colour white (CLUT address 7)
Background colour black (CLUT address 8)
Horizontal size
×
1, vertical size
×
1 (normal size)
Alphanumeric on
Contiguous Mosaic Graphics
Release Mosaics
Flash off
Box off
Conceal off
Twist off.
The attributes have individual codes which are defined in
the basic character table (see Fig.30).
19.4.3
P
ARALLEL CHARACTER CODING
Table 21
Parallel character coding
BITS
DESCRIPTION
0 to 7
8 to 10
11
8-bit character code
3 bits for 8 foreground colours
Mode bit: 0 = parallel code
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA5532 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5532PS 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5533 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5533PS 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5540PS/NNNN 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:TV microcontrollers with Closed Captioning (CC) and On-Screen Display (OSD)
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