參數(shù)資料
型號： GS1560ACF
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)： 61/80頁
文件大小： 842K
代理商： GS1560ACF
GS1560A/GS1561 Data Sheet
27360 - 8
September 2005
61 of 80
3.10.5.5 Line Based CRC Error Detection
The GS1560A/GS1561 will calculate line based CRC words for HD video signals
for both the Y and C data channels. These calculated CRC values are compared
with the received CRC values and any mismatch is flagged in the YCRC_ERR
and/or CCRC_ERR bits of the ERROR_STATUS register.
Line based CRC error flags will only be generated when the device is operating in
HD mode, (SD/HD = LOW).
If a CRC error is detected in the Y channel, the YCRC_ERR bit in the error status
register will be set HIGH. If a CRC error is detected in the C channel, the
CCRC_ERR bit in the error status register is set HIGH. Y and C CRC errors will
also be generated if CRC values are not received.
3.10.5.6 HD Line Number Error Detection
When operating in HD mode, the GS1560A/GS1561 will calculate line numbers
based on the timing generated by the internal flywheel. These calculated line
numbers are compared with the received line numbers for the Y channel data and
any mismatch is flagged in the LNUM_ERR bit of the ERROR_STATUS.
Line number errors will also be generated if line number values are not received.
3.10.5.7 TRS Error Detection
TRS errors flags are generated by the GS1560A/GS1561 when:
1. The received TRS timing does not correspond to the internal flywheel timing;
or
2. The received TRS hamming codes are incorrect.
Both 8-bit and 10-bit SAV and EAV TRS words are checked for timing and data
integrity errors. These are flagged via the SAV_ERR and/or EAV_ERR bits of the
ERROR_STATUS register.
Timing-based TRS errors will only be generated if the FW_EN/DIS pin is set HIGH.
NOTE: In HD mode, (SD/HD = LOW), only the Y channel TRS codes will be
checked for errors.
3.10.6 Error Correction and Insertion
In addition to signal error detection and indication, the GS1560A/GS1561 may also
correct certain types of errors by inserting corrected code words, checksums and
CRC values into the data stream. These features are only available in SMPTE
mode and IOPROC_EN/
DIS
must be set HIGH. Individual correction features may
be enabled or disabled via the IOPROC_DISABLE register (
Table 3-14
).
All of the IOPROC_DISABLE register bits default to '0' after device reset, enabling
all of the processing features. To disable any individual error correction feature, the
host interface must set the corresponding bit HIGH in the IOPROC_DISABLE
register.
相關(guān)PDF資料
PDF描述
GS1560A GS1560A/GS1561 HD-LINX-R II Dual-Rate Deserializer
GS1560ACFE3 GS1560A/GS1561 HD-LINX-R II Dual-Rate Deserializer
GS1561-CF GS1560A/GS1561 HD-LINX-R II Dual-Rate Deserializer
GS1561-CFE3 GS1560A/GS1561 HD-LINX-R II Dual-Rate Deserializer
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
GS1560ACFE3 制造商:Semtech Corporation 功能描述:Reclocking deserializer.Receiver for HD/SD/ASI w/ loop through. LQFP80
GS1561 制造商:GENNUM 制造商全稱:GENNUM 功能描述:HD-LINX II Dual-Rate Deserializer
GS1561-CF 制造商:Rochester Electronics LLC 功能描述: 制造商:Gennum Corporation 功能描述:
GS1561-CFE3 制造商:Semtech Corporation 功能描述:Receiver for HD/SD/ASI w/out loop thru
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