參數(shù)資料
型號(hào)： MB86391
廠商： Fujitsu Limited
英文描述： MPEG2 1chip Audio/Video Encoder
中文描述： 的MPEG2 1chip音頻/視頻編碼器
文件頁數(shù)： 42/69頁
文件大?。?/td> 847K
代理商： MB86391
FUJITSU LIMITED
Proprietary and Confidential
MB86391 12, November 2001
Product Specification
Rev. 1.1
38
3.6 Bit Stream Output Port
The bit stream output port is compatible with various transfer modes described next:
(a) 27 MHz sync mode
This mode is for storage function products. The PCR(SCR) is made by the calculated value from
bit-stream and datasize.
Fig. 3.6a: 27 MHz sync mode timings
(1) When ready to receive streams, set STREQ to 'H.'
(2) When valid data exists, the MB86391 sets STEN to ’H’ at STDATA to instruct data fetching. It
also sets the TSPSSYNC signal simultaneously to 'H' at the sync byte "0x47" if the stream is TS,
and at pack start code "0x000001BA" or at the leading byte of the program end code
"0x000001B9" if the stream is PS.
Notes:
There is an instance during which two pieces of data are output at maximum
even if STREQ is set 'L.'
Limit the duration during which STREQ is set to ’L’ while encoding to a few tens
of clocks. The bit rate must also be maintained on the average (The MB86391
is equipped with an internal buffer to temporarily store bit streams. However,
the buffer fails if bit streams are not read for a lengthy period of time.)
(b) Handshake mode
This mode is for storage function products. The PCR(SCR) is made by the calculated value from
bit-stream and datasize.
Fig. 3.6b: Handshake mode timings
BCLK(O)
STREQ(I)
STEN(O)
Valid
STDATA(O)
TSPSSYNC(O)
Valid
Valid
Valid
BCLK(O)
STREQ(I)
STEN(O)
STDATA(O)
TSPSSYNC(O)
Valid
Valid
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相關(guān)代理商/技術(shù)參數(shù)
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MB86391PSC-G-BNDE1 制造商:FUJITSU 功能描述:
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