- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄372112 > SAA5697HL (NXP Semiconductors N.V.) Enhanced TV microcontrollers with On-Screen Display (OSD) PDF資料下載
參數(shù)資料
| 型號(hào)： | SAA5697HL |
| 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)： | 63/116頁(yè) |
| 文件大小： | 532K |
| 代理商： | SAA5697HL |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)當(dāng)前第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)
2002 May 06
63
Philips Semiconductors
Objective specification
Enhanced TV microcontrollers with
On-Screen Display (OSD)
SAA567x; SAA569x
handbook, full pagewidth
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
7xx
bit
7
Bytes in the table
bits in each byte
column
0
row n
n + 1
n + 6
n + 7
0
MGD160
8
16
24
32
39
6xx
5xx
4xx
3xx
2xx
1xx
8xx
Fig.22 Transmitted/subtitle page organisation.
22.1.6.7
Packet 26 processing
One of the uses of packet 26 is to transmit characters that
are not in the basic Teletext character set. The family
automatically decodes packet 26 data and, if a character
corresponding to that being transmitted is available in the
character set, automatically writes the appropriate
character code into the correct location in the Teletext
memory.
This is not a full implementation of the packet 26
specification allowed for in level 2 Teletext, and so is often
referred to as level 1.5.
By convention, the packets 26 for a page are transmitted
before the normal packets. To prevent the default
character data overwriting the packet 26 data, there is a
mechanism which prevents packet 26 data from being
overwritten. The mechanism is disabled when the Spanish
national option is detected because the Spanish
transmission system sends even parity (i.e. incorrect)
characters in the basic page locations corresponding to
the characters sent via packet 26 and these will not
overwrite the packet 26 characters anyway. The special
treatment of the Spanish national option is disabled if bit
TXT12.SPANISH is cleared (logic 0) or if bit
TXT8.DISABLE SPANISH is set (logic 1).
Packet 26 data is processed regardless of bit
TXT1.EXT PKT OFF, but setting bit TXT1.X26 OFF
disables packet 26 processing.
Bit TXT8.PKT26 RECEIVED is set by the hardware
whenever the packet 26 decoding hardware writes a
character into the page memory. The flag can be reset by
writing a logic 0 into the SFR bit.
22.1.6.8
525-line World System Teletext
The 525-line format (see Fig.23) is similar to the 625-line
format but the data rate is lower and there are fewer data
bytes per packet (32 rather than 40). There are still
40 characters per display row so extra packets are sent,
each containing the last eight characters for four rows.
These packets can be identified by the ‘tabulation bit’ (T),
which replaces one of the magazine bits in 525-line
Teletext. When an ordinary packet with T = 1 is received,
the decoder puts the data into the four rows, starting with
that corresponding to the packet number, but with the two
LSBs set to logic 0. For example, a packet 9 with T = 1
(packet X/1/9) contains data for rows 8, 9, 10 and 11.
The error checking carried out on data from packets with
T = 1 depends on the setting of bit TXT1.8-BIT and the
error checking control bits in the page request data and is
the same as that applied to the data written into the same
memory location in the 625-line format.
The rolling time display (the last eight characters in row 0)
is taken from any packets X/1/1, 2 or 3 received.
In parallel magazine mode, only packets in the correct
magazine are used for the rolling time. Packet number
X/1/0 is ignored.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAA5675HL | Enhanced TV microcontrollers with On-Screen Display (OSD) |
| SAA567X | Enhanced TV microcontrollers with On-Screen Display (OSD) |
| SAA5695HL | Enhanced TV microcontrollers with On-Screen Display (OSD) |
| SAA569x | Enhanced TV microcontrollers with On-Screen Display (OSD) |
| SAA5677HL | Enhanced TV microcontrollers with On-Screen Display (OSD) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA569X | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display (OSD) |
| SAA5700 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Chinese Character System Teletext CCST decoder |
| SAA5700GP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Chinese Character System Teletext CCST decoder |
| SAA5731 | 制造商:The Stanley Works 功能描述: |
| SAA5X9X | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。