参数资料
型号: L64781
厂商: LSI CORP
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封装: PLASTIC, QFP-100
文件页数: 98/164页
文件大小: 2003K
代理商: L64781
Serial/Parallel Interface
2-19
To descramble the incoming frame bytes, and generate the original
byte values of the transport frame.
To generate the appropriate timing and output signals for
handshaking with downstream blocks (in various modes and
formats).
2.23 Serial/Parallel Interface
The serial/parallel interface block facilitates serial or parallel data transfer,
synchronized to the internally generated byte clock. The transferred data
are MPEG-2 transport packets in DVB format. The packet is made of 188
data bytes, followed by sixteen check bytes. The frequency of the byte
clock is a function of the Viterbi code rate (VCR), the modulation type
(QPSK, 16-QAM, 64-QAM), the guard interval and the sampling
frequency (fsampling).
l64781.book Page 19 Friday, January 19, 2001 1:28 PM
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