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參數(shù)資料
| 型號： | STV5342 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | TELETEXT DECODER WITH 4 INTERGATED PAGES |
| 中文描述： | 圖文電視解碼器，4 INTERGATED頁 |
| 文件頁數(shù)： | 12/20頁 |
| 文件大小： | 448K |
| 代理商： | STV5342 |
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 ORGANIZATION
Figure9
APPLICATION NOTES
ORGANIZATION OF APAGE-MEMORY
The organization of a page-memory is shown in
Figure 9. The STV5342 chip provides a display
format of 25 rows of 40 characters per row.
Row numbertwenty-four is usedby themicroproc-
essor for the displayof information.
Row zerocontainsthe page header.
The organizationis as follows :
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 last eight char-
acters display the time of day.
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.
STV5342
12/20
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| STV5345 | TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STV5345 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TELETEXT DECODER WITH 8 INTEGRATED PAGES |
| 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 |
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