參數(shù)資料
型號(hào)： GS1561-CF
廠商： Gennum Corporation
英文描述： GS1560A/GS1561 HD-LINX-R II Dual-Rate Deserializer
中文描述： GS1560A/GS1561的HD - LINX進(jìn)程- R的第二雙率解串器
文件頁數(shù)： 63/80頁
文件大小： 842K
代理商： GS1561-CF
GS1560A/GS1561 Data Sheet
27360 - 8
September 2005
63 of 80
3.10.6.3 Ancillary Data Checksum Error Correction
When ancillary data checksum error correction and insertion is enabled, the
GS1560A/GS1561 will generate and insert ancillary data checksums for all
ancillary data words by default. Where user specified ancillary data has been
programmed into the device, (see
Programmable Ancillary Data Detection on
page 50
), only the checksums for the programmed ancillary data types will be
corrected.
This feature is enabled when the ANC_CSUM_INS bit of the IOPROC_DISABLE
register is set LOW.
3.10.6.4 Line Based CRC Correction
The GS1560A/GS1561 will generate and insert line based CRC words into both the
Y and C channels of the data stream. This feature is only available in HD mode and
is enabled by setting the CRC_INS bit of the IOPROC_DISABLE register LOW.
3.10.6.5 HD Line Number Error Correction
In HD mode, the GS1560A/GS1561 will calculate and insert line numbers into the
Y and C channels of the output data stream.
Line number generation is in accordance with the relevant HD video standard as
determined by the device, (see
Automatic Video Standard and Data Format
Detection on page 52
).
This feature is enabled when SD/HD = LOW, and the LNUM_INS bit of the
IOPROC_DISABLE register is set LOW.
3.10.6.6 TRS Error Correction
When TRS error correction and insertion is enabled, the GS1560A/GS1561 will
generate and insert 10-bit TRS code words as required.
TRS word generation will be performed in accordance with the timing parameters
generated by the flywheel to provide an element of noise immunity. As a result,
TRS correction will only take place if the flywheel is enabled, (FW_EN/DIS =
HIGH).
In addition, the TRS_INS bit of the IOPROC_DISABLE register must be set LOW.
3.10.7 EDH Flag Detection
As described in
EDH CRC Error Detection on page 58
, the GS1560A/GS1561 can
detect EDH packets in the received data stream. The EDH flags for ancillary data,
active picture and full field areas are extracted from the detected EDH packets and
placed in the EDH_FLAG register of the device (
Table 3-15
).
One set of flags is provided for both fields 1 and 2. Field 1 flag data will be
overwritten by field 2 flag data.
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相關(guān)代理商/技術(shù)參數(shù)
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GS1561-CFE3 制造商:Semtech Corporation 功能描述:Receiver for HD/SD/ASI w/out loop thru
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GS1561-CFTE3 制造商:Semtech Corporation 功能描述:Receiver for HD/SD/ASI w/out loop thru
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