參數(shù)資料
型號(hào): SAA5250
廠商: NXP Semiconductors N.V.
英文描述: Interface for data acquisition and control for multi-standard teletext systems
中文描述: 接口數(shù)據(jù)采集和控制的多標(biāo)準(zhǔn)圖文電視系統(tǒng)
文件頁數(shù): 17/35頁
文件大?。?/td> 173K
代理商: SAA5250
January 1987
17
Philips Semiconductors
Product specification
Interface for data acquisition and control
(for multi-standard teletext systems)
SAA5250
Table 20
Magazine and row address group processing results
Without prefix
All the data following the framing code are stored in the FIFO memory.
Table 21
Prefix processing
Note
1.
2.
after page/flag detection
A1, A2, A3 are channel numbers
CI = continuity index
F = format
PS = packet structure
D = data
MRAG = magazine and row address group
D7
D6
D5
D4
D3
D2
D1
D0
A/R
X
X
RW4
RW3
RW2
RW1
RW0
PREFIXES
CONSTRUCTION
OF PREFIXES
BYTES STORED IN FIFO
MEMORY DURING SLOW MODE
BYTES STORED IN FIFO
MEMORY DURING FAST MODE
DIDON
long
DIDON
medium
DIDON
short
NABTS
A1, A2, A3,
CI, F and D
CI, F and D
CI
(1)
, F
(1)
and D
(1)
A1, A2 and D
D
D
(1)
A1, F and D
A1, A2, A3
CI, PS and D
F and D
F
(1)
and D
(1)
CI, PS and D
CI
(1)
, PS
(1)
and D
(1)
U.K.
teletext
without
prefix
MRAG and D
MRAG and D
all bytes of the data packet following the framing code are written into the
FIFO memory
MRAG
(1)
and D
(1)
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SAA5250P 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Interface for data acquisition and control for multi-standard teletext systems
SAA5250T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Interface for data acquisition and control for multi-standard teletext systems
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SAA5252P 制造商:NXP Semiconductors 功能描述:TELETEXT DECODER, PDIP24
SAA5252T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Line twenty-one acquisition and display LITOD