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參數(shù)資料
| 型號： | GS9025 |
| 英文描述： | GENLINX II Serial Digital Receiver |
| 中文描述： | GENLINX二串行數(shù)字接收機 |
| 文件頁數(shù)： | 10/30頁 |
| 文件大?。?/td> | 445K |
| 代理商： | GS9025 |
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19922 - 2
10
G
For composite based standards, the V output signal is
asserted HIGH as described in the following table:
2.3 TRS Errors
The flywheel is used to indicate TRS errors. These errors
are detected by comparing the TRS in the incoming data
stream with the expected TRS based on the internal
flywheel. If a mismatch occurs, the TRS_ERR signal is
immediately set HIGH and maintained HIGH until a correct
TRS occurs. The types of TRS errors detected are:
TRS missing
TRS in wrong location
TRS-ID is different from the one generated by the
flywheel
The TRS_ERR signal is available as an output pin and via
the HOSTIF read table. The TRS_ERR signal should only be
considered valid if the flywheel is enabled.
2.4 FIFO Reset Pulse
The GS9020A also provides a FIFO_RESET pulse on the
FIFO_RESET output pin. This pin is always HIGH except
when the TRSID word is exiting the device as shown in
Figure 9. For component standards, a FIFOE/S input pin is
used to determine if the FIFO_RESET pulse occurs during
the EAV or SAV word of the outgoing data.
If FIFOE/S is HIGH, the active low pulse of the FIFO_RESET
output pin occurs during the EAV word. If FIFOE/S is LOW,
the active low output pulse occurs during the SAV word. For
composite signals the FIFOE/S pin has no effect since there
is only one TRS-ID word per line. This feature is useful for
synchronizing line store FIFOs that follow the GS9020A.
3. EDH PROCESSING BLOCK
This section describes the GS9020A
’
s EDH features and
functionality.
3.1 Error Flags
All 15 EDH error flags can be read from the HOSTIF read
table. The INCOMING ERROR FLAGS represent the EDH
error flags present in the incoming EDH packet. The
OUTGOING ERROR FLAGS represent the EDH error flags
present in the outgoing EDH packet (after modification by
the GS9020A). Please note that the EDH flags can also be
accessed using the flag port as described later.
The INCOMING and OUTGOING ERROR FLAGS, the
incoming Validity bits (FFV and APV), and the EDH_CHKSM
bit can be made "sticky".
VBLANKS/L=1
VBLANKS/L=0
NTSC
Composite
from Line 525/ Sample
768 to Line 9/ Sample
767 inclusive
AND
from Line 263/ Sample
313 to Line 272/
Sample 767 inclusive
from Line 525/ Sample
768 to Line 19/ Sample
767 inclusive
AND
from Line 263/ Sample
313 to Line 282/
Sample 767 inclusive
VBLANKS/L=1
VBLANKS/L=0
PAL
Composite
from Line 623/ Sample
382 to Line 5/ Sample
947 inclusive
AND
from Line 310/ Sample
948 to Line 317/
Sample 947 inclusive
from Line 623/ Sample
382 to Line 15/ Sample
947 inclusive
AND
from Line 310/ Sample
948 to Line 327/
Sample 947 inclusive
PIN
LOGIC OPR
HOST BIT
TRS_ERR
TRS_ERR
PIN
LOGIC OPR
HOST BIT
FIFOE/S
FIFO_RESET
PIN
LOGIC OPR
HOST BIT
INCOMING ERROR FLAGS
OUTGOING ERROR FLAGS
STICKY IN
STICKY OUT
OVERWRITE VALUES
OVERWRITE CONTROL
RO_CTRL
RESERVED WORDS (INCOMING)
RESERVED WORDS (OUTGOING)
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