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參數(shù)資料
| 型號(hào)： | SAA5491H/NNN |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | 14 X 20 MM, 2.80 MM HEIGHT, PLASTIC, SOT-318-2, QFP-80 |
| 文件頁(yè)數(shù)： | 29/72頁(yè) |
| 文件大?。?/td> | 498K |
| 代理商： | SAA5491H/NNN |
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1998 Dec 14
35
Philips Semiconductors
Preliminary specication
Economy teletext and TV microcontrollers
SAA5x9x family
8.8
Memory organisation of SAA5290, SAA5290A, SAA5291, SAA5291A and SAA5491
Teletext packets each contain 40 bytes of data and one packet is stored in each row of the text memory, the row used
being dependent on the packet number.
Packet 0, the page header, is split into 2 parts when it is written into the text memory. The first 8 bytes of the header
contain control and addressing information. They are Hamming decoded and written into columns 0 to 7 of row 25.
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
06 7 8
9
023
39
Packet X/0
Basic Page Block
OSD only
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)
MGK467
Control Data
VPS Data
aw/ag
Row 0
1
2
Packet X/24(2)
Extension Packet Memory
Packet X/27/0
Packet 8/30
Fig.10 Packet storage locations.
(1) If X24 Position bit = 1.
(2) If X24 Position bit = 0.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA5491PS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5496 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5496H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5496PS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5497 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
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