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參數(shù)資料
| 型號： | SAA5647HL |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Enhanced TV microcontrollers with On-Screen Display (OSD)(帶全屏顯示的增強(qiáng)型TV控制器) |
| 中文描述： | 與微控制器在強(qiáng)化電視屏幕顯示（OSD）（帶全屏顯示的增強(qiáng)型電視控制器） |
| 文件頁數(shù)： | 58/112頁 |
| 文件大?。?/td> | 436K |
| 代理商： | SAA5647HL |
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2000 Jun 30
58
Philips Semiconductors
Objective specification
Enhanced TV microcontrollers with
On-Screen Display (OSD)
SAA56xx
22.1.6.4
Teletext memory organisation
The Teletext memory is divided into two banks of ten
blocks. Normally, when bit TXT1.EXT PKT OFF is logic 0,
each of blocks 0 to 8 contains a Teletext page arranged in
the same way as the basic page memory of the page
device (see Fig.18) and Block 9 contains extension
packets (applies to Bank 0 and Bank 1), see Fig.19.
When bit TXT1.EXT PKT OFF is logic 1, no extension
packets are captured and Block 9 of both Bank 0 and
Bank 1 of the memory are used to store two other pages.
The number of the memory block into which a page is
written corresponds to the page request number
(TXT2.REQ<3:0>) which resulted in the capture of the
page.
Packet 0, the page header, is split into two parts when it is
written into the text memory. The first eight bytes of the
header contain control and addressing information. They
are Hamming decoded and written into columns 0 to 7 of
row 25, which also contains the magazine number of the
acquired page and the PBLF flag. However, the last
14 bytes are unused and may be used by the software, if
necessary.
handbook, full pagewidth
Row 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
0
6
7
8
9
0
23
39
Packet X/0
Packet X/1
Packet X/2
Packet X/3
Packet X/4
Packet X/5
Packet X/6
Packet X/7
Packet X/8
Packet X/9
Packet X/10
Packet X/11
Packet X/12
Packet X/13
Packet X/14
Packet X/15
Packet X/16
Packet X/17
Packet X/18
Packet X/19
Packet X/20
Packet X/21
Packet X/22
Packet X/23
Packet X/24
(1)
VPS Data
(2)
Basic Page Blocks (0 to 9 Bank 0; 0 and 9 Bank 1)
OSD only
GSA071
Control Data
10
(3)
Fig.18 Packet storage locations.
(1) If ‘X24 POSN’ bit = 1.
(2) VPS data only in block 9 of either bank 0 or bank 1.
(3) Byte 10 reserved.
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| SAA5697HL | Enhanced TV microcontrollers with On-Screen Display (OSD) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA5665 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD |
| SAA5665HL | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD |
| SAA5667 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD |
| SAA5667HL | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD |
| SAA5675HL | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display (OSD) |
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