參數(shù)資料
型號： SAA5532
廠商： NXP Semiconductors N.V.
英文描述： Enhanced TV microcontrollers with On-Screen Display OSD
中文描述： 與微控制器在強化電視屏幕顯示OSD
文件頁數(shù)： 70/100頁
文件大?。?/td> 371K
代理商： SAA5532
2000 Feb 23
70
Philips Semiconductors
Preliminary specification
Enhanced TV microcontrollers with
On-Screen Display (OSD)
SAA55xx
19.8
Soft scroll action
The dynamic scroll region is defined by the MMR Scroll
Area, MMR Scroll Range, MMR Top Scroll line and the
MMR Status. The scroll area is enabled when the SCON
bit is set in MMR Status.
The position of the soft scroll area window is defined using
the Soft Scroll Position bits (SSP<3:0>) and the height of
the window is defined using the Soft Scroll Height bits
(SSH<3:0>) both are in MMR Scroll Range. The rows that
arescrolledthroughthewindowaredefinedusingtheStart
Scroll Row (STS<3:0>) and the Stop Scroll Row
(SPS<3:0>) both are in MMR Scroll Area.
The soft scrolling function is done by modifying the Scroll
Line(SCL<3:0>)inMMRTopScrollLineandthefirstscroll
row value SCR<3:0> in the MMR Status.
If the number of rows allocated to the scroll counter is
larger than the defined visible scroll area, this allows parts
of rows at the top and bottom to be displayed during the
scroll function. The registers can be written throughout the
field and the values are updated for display with the next
field sync. Care should be taken that the register pairs are
written to by the software in the same field.
Only a region that contains only single height rows or only
double height rows can be scrolled.
TXT:
The display is organised as a fixed size of 25 rows
(0 to 24) of 40 columns (0 to 39). This is the standard size
for teletext transmissions. The control data in row 25 is not
displayed but is used to configure the display page
correctly.
Fig.32 Soft scroll area.
handbook, full pagewidth
15
MBK967
14
13
12
11
10
9
8
7
6
5
soft scroll position
pointer SSP<3:0> e.g. 6
soft scroll height
SSH<3:0> e.g. 4
soft scrolling area
usable for
OSD display
usable for
OSD display
should not be used
for OSD display
should not be used
for OSD display
start scroll row
STS<3:0> e.g. 3
start scroll row
SPS<3:0> e.g. 11
4
3
2
1
0
ROW
相關PDF資料
PDF描述
SAA5532PS Enhanced TV microcontrollers with On-Screen Display OSD
SAA5533 Enhanced TV microcontrollers with On-Screen Display OSD
SAA5533PS Enhanced TV microcontrollers with On-Screen Display OSD
SAA5561PS Enhanced TV microcontrollers with On-Screen Display (OSD)(帶全屏顯示的增強型TV控制器)
SAA5564PS Enhanced TV microcontrollers with On-Screen Display (OSD)(帶全屏顯示的增強型TV控制器)
相關代理商/技術參數(shù)
參數(shù)描述
SAA5532PS 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5533 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5533PS 制造商:PHILIPS 制造商全稱: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:NXP Semiconductors 功能描述:TV microcontrollers with Closed Captioning (CC) and On-Screen Display (OSD)
SAA5541PS/NNNN 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:TV microcontrollers with Closed Captioning (CC) and On-Screen Display (OSD)
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