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GS2962 Datasheet, PDF (44/82 Pages) Gennum Corporation – Integrated Narrow-Bandwidth PLL
ANC data should be placed in DS1 first in Level A mode, and only in DS2 as an overflow
if DS1 is full. Data insertion starts at the first available location in the HANC space
following any pre-existing arbitrary data packets.
All Data Words identified by the user are inserted in a contiguous fashion starting at the
first available data space. HANC data insertion terminates when all Data Words
identified by the user have been inserted; or by the start of the four word TRS SAV code,
regardless of the number of Data Words actually inserted. The rest of the packet will be
ignored.
Vertical Ancillary data (VANC), is inserted into the data stream on the video line(s)
defined by the user. Data insertion starts at the first active pixel immediately following
the last word of the TRS SAV code.
All Data Words identified by the user are inserted in a contiguous fashion, starting at the
first active pixel. VANC data insertion terminates when all data words identified by the
user have been inserted; or by the start of the four word TRS EAV code, regardless of the
number of Data Words actually inserted.
The total number of Data Words to be inserted and the line number on which the ANC
data insertion takes place is provided by the user via the host interface as part of the
configuration of the ANC data insertion function.
The user data for insertion is provided via the host interface register STREAM_TYPE_1
(02Dh).
4.7.2.2 Level B Mode
When operating in 3G (RATE_SEL0 = LOW, RATE_SEL1 = HIGH) Level B mode, the
GS2962 inserts VANC or HANC data packets into either the Y or C data stream of Data
Stream One (default) or Data Stream Two, as selected by the STREAM_TYPE_1 bit in the
host interface on a per line basis.
By default (at power up or after system reset), all ANC data insertion takes place in the Y
data stream of Data Stream One.
The user can select between the Y or C data stream for insertion on a per line basis in
Separate Line mode. The Y data stream is selected when the STREAM_TYPE_0 bit is LOW
(default). The C data stream is selected when the STREAM_TYPE_0 bit is HIGH.
The user can select between the Y or C data stream for insertion on a single line basis in
Concatenated mode. The Y data stream is selected when the STREAM_TYPE_0 bit is
LOW (default). The C data stream is selected when the STREAM_TYPE_0 bit is HIGH.
Horizontal Ancillary data (HANC), is inserted into the Y or C data stream on the video
line(s) defined by the user.
Data insertion starts at the first available location in the HANC space following any
pre-existing arbitrary data packets. All Data Words identified by the user are inserted in
a contiguous fashion, starting at the first available data space.
HANC data insertion terminates when all Data Words identified by the user have been
inserted; or by the start of the four word TRS SAV code, regardless of the number of data
words actually inserted.
GS2962 3G/HD/SD-SDI Serializer with Complete
SMPTE Video Support
Data Sheet
48005 - 7
October 2010
44 of 82