參數(shù)資料
型號: S5D0127X01
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: MULTISTANDARD VIDEO DECODER/SCALER
中文描述: 多標準視頻解碼器/倍線器
文件頁數(shù): 33/96頁
文件大?。?/td> 1509K
代理商: S5D0127X01
ELECTRONICS
S5D0127X01 Data Sheet
MULTIMEDIA VIDEO
PAGE 33 OF 96
Modified on May/04/2000
1.7. VBI DATA PROCESSING
The S5D0127X01 VBI data processing is very flexible in that it supports VBI data formats of:
Closed Caption Line 21 Data Service (EIA-608)
525 line / 60Hz Teletext systems B,C,D (ITU-R BT.653-2)
625 line / 50Hz Teletext systems A,B,C,D (ITU-R BT.653-2)
Copy Generation Management System (EIA/IS-702)
Wide Screen Signalling (WSS ETS 300 294).
Note that the SMPTE data slicing is removed for the S5D0127X01 and replaced with the WSS / CGMS processing.
This data can be accessed from the part via four different methods:
Enabling the “Raw un-processed 27MHz” Y ADC samples to be output for the appropriate lines in place of the
normal YUV data.
Slicing the data (creating a clock and comparing the data to a threshold at the clock) and bursting this data out
on Y output.
Reading the sliced data from two internal registers via the IIC bus.
Via 2 external pins that output the sliced VBI data and the time at which the slice is valid.
A simplified block diagram for the VBI section is shown in Figure 30.
Figure 30. VBI Decoder Block Diagram
MODE
CTRL
LOGIC
CCEN
CLOCK
GENERATOR
ODD
ODDEN
EVENEN
ODDOS
VBIL
SLICER
From Y ADC
PIXSEL
IFMT
SECAM
FRAME
ALIGNMENT
FIFO
8
Y[7:0]
Normal
Decoded Y Data
CCDATA
MUX /
VBI
Format
VYFMT
VBINSRT
TTFRAM
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