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參數(shù)資料
| 型號： | STV5345 |
| 廠商： | 意法半導體 |
| 英文描述： | TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| 中文描述： | 圖文電視解碼器，集成8頁 |
| 文件頁數(shù)： | 13/25頁 |
| 文件大?。?/td> | 579K |
| 代理商： | STV5345 |
APPLICATION NOTES
ORGANIZATION OF APAGE-MEMORY
The organization of a page-memory is shown in
Figure 10.
The STV5345 chip provides a display format of 25
rows of 40 charactersper row.
The organizationis as follows :
Row zerocontains the page header.
The first seven characters (0 - 6) are used for
messagesregarding the operationalstatus.
The eighth character is an alphanumeric control
character either ”white” or ”green” defining the
”search” status of the page. When it is ”white” the
operationalstateisnormalandtheheaderappears
white ; when it is ”green” the operational state
corresponds to ”search mode” and the header
appears green. The following twenty-four charac-
ters give the header of the requested page when
the system is in search mode. The lasteight char-
acters display the time of day.
Row numbertwenty-fouris used by the microproc-
essor for the displayof information.
Row twenty-five comprises ten bytes of control
data concerning the received page (see Table 1)
and fourteen free bytes which can be used by the
microprocessor.
1
7
24
8
10
14
this row always free for status
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
ROW
8 scrolling
time characters
24 characters from page header
rolling on page search
Fixed characters
Alphanumerics white
for normal,
green on search
7 Status
Characters
MAIN PAGE DISPLAY AREA
14 bytes free
for use by
μ
C
10 bytes for received
page information
5
PAGEMEMORY ORGANISATION
Figure10
STV5345- STV5345/H - STV5345/T
13/25
相關PDF資料 |
PDF描述 |
|---|---|
| STV5345H | TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| STV5345T | TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| STV5346 | MONOCHIP TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| STV5346D | MONOCHIP TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| STV5347 | Monochip Teletext and VPS Decoder with 4 Integrated Pages(單片電文和VPS譯碼器帶4頁存儲器) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| STV5345/H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Teletext Circuit |
| STV5345/T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Teletext Circuit |
| STV5345H | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| STV5345T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| STV5346 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MONOCHIP TELETEXT DECODER WITH 8 INTEGRATED PAGES |
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