參數(shù)資料
型號: SAA7205H
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: MPEG-2 systems demultiplexer
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP128
文件頁數(shù): 14/84頁
文件大?。?/td> 363K
代理商: SAA7205H
1997 Jan 21
14
Philips Semiconductors
Preliminary specification
MPEG-2 systems demultiplexer
SAA7205H
Table 2
Microcontroller accessible MPEG-2 systems information
POSITION
NUMBER OF BITS
FIELD NAME
FUNCTION
Transport packet
header
PES header
2
transport_scrambling_control
(bits: ts_scr_ctrl1 and 0)
PES_scrambling_control
(bits: pes_scr_ctrl1 and 0)
copyright (bit: cp_info1)
original_or_copy (bit: cp_info0)
additional_copy_info_flag
(bit: ad_cp_flag)
additional_copy_info
(bits: ad_cp_info7 to 0)
indicates whether the associated bit
stream is scrambled or not
indicates whether the associated
PES payload is scrambled or not
anticopy management
anticopy management
anticopy management
2
1
1
1
7
anticopy management
Fig.4 Signal constellation FEC decoder - demultiplexer interfacing.
handbook, full pagewidth
DEMULTIPLEXER
FORWARD
ERROR
CORRECTOR
PKTBCLK
PKTDAT7
to
PKTDAT0
PKTSYNC
PKTDATV
PKTBAD/PKTBAD
PKTBAD/PKTBAD
8
PKTDAT7 to PKTDAT0
PKTBCLK
PKTDATV
PKTBAD/PKTBAD
PKTSYNC
message
invalid data
message
invalid data
error-free transport packet (programmable polarity)
erroneous transport packet
MGG375
CCLKI
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