參數(shù)資料
型號(hào)： GF9331-CBP
廠商： Gennum Corporation
英文描述： DTV/SDTV Motion Co-processor
中文描述： 數(shù)字電視/標(biāo)清運(yùn)動(dòng)協(xié)處理器
文件頁(yè)數(shù)： 29/31頁(yè)
文件大?。?/td> 337K
代理商： GF9331-CBP
GF9331 Data Sheet
Proprietary and Confidential
18303 - 4
June 2004
29 of 31
3.11.1 Edge Direction Detection Feature Control
The GF9331 is able to operate in automatic or disabled mode for edge detection of
the video input stream. When set to operate in disabled mode (ED_MODE=0 or
EDGE_CTL=0), the internal edge direction detection circuitry is disabled. When set
to operate in automatic mode (ED_MODE=1 or EDGE_CTL=1) the GF9331
internally detects edge directions. See
Table 3-9: Edge Detection Feature Control
.
.
3.12 Video Output
The GF9331 supports all input formats defined in
Input Data Formats
. Routing of
video data to the GF9330 is done via the Y_OUT[9:0] and C_OUT[9:0] busses.
Note that only the active portion of the input video signal is passed through the
device to the GF9330 unchanged. All other ancillary data is discarded from the
input data stream. Timing information is provided by the H_OUT, V_OUT and
F_OUT pins.
3.13 Processing Latency
The GF9331 processing latency is constant at 2 lines and 16 pixels for all modes
of operation (including bypass).
Table 3-9: Edge Detection Feature Control
External ED_MODE Pin
Host Interface EDGE_CTL Bit
Description
0
0
Edge Direction Detection Disabled
0
1
Edge Direction Detection Enabled
1
0
1
1
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