GS1510 Gennum Corporation, GS1510 Datasheet - Page 5

• Manufacturer Part Number: GS1510
• Description: Hd-linx (tm) THDTV Serial Digital Deformatter
• Manufacturer: Gennum Corporation

1.2 PIN DESCRIPTIONS
GENNUM CORPORATION
28, 29, 30,
NUMBER
26,27,71-
77,80,
83-89
PIN
13
15
16
17
18
21
22
23
31
VD_STD[3:0]
FAST_LOCK
CRC_INS
TRS_INS
LN_INS
RESET
NAME
(Continued)
(Continued)
(Continued)
(Continued)
NC
H
V
F
Synchronous
Synchronous
Synchronous
Synchronous
Synchronous
synchronous
synchronous
synchronous
wrt PCLK_IN
synchronous
wrt PCLK_IN
wrt PCLK_IN
wrt PCLK_IN
wrt PCLK_IN
TIMING
Non-
Non-
Non-
Non-
N/A
Output
Output
Output
Output
TYPE
Input
Input
Input
Input
Input
N/A
5
Control Signal Input. Used to enable or disable re-insertion of the
TRS into the data stream. When TRS_INS is high, the device re-
inserts TRS into the incoming data stream based on the internal
calculation. The original TRS packets are set to the blanking levels.
If the flywheel is enabled, TRS calculated by the flywheel is used for
insertion. When TRS_INS is low, the device will not re-insert TRS
even if errors in TRS signals are detected.
Control Signal Input. Used to enable or disable re-insertion of the
line number into the data stream. When LN_INS is high, the device
re-inserts the line number into the incoming data stream based on
the internal calculation. The original line number packets are set to
the blanking levels. If the flywheel is enabled, the line number
calculated by the flywheel is used for insertion. When LN_INS is low,
the device will not re-insert the line number.
Control Signal Input. Used to enable or disable re-insertion of the
CRC into the data stream. When CRC_INS is high, the device is
enabled to re-insert line CRCs based on the internal calculation.
When CRC_INS is low, the device will not re-insert the CRCs.
Control Signal Input. Used to control the flywheel synchronization
when a switch line occurs. When a low to high transition occurs on
the FAST_LOCK signal, the internal flywheel will immediately re-
synchronize to the next valid EAV or SAV TRS in the incoming data
stream. See Fig. 5 for timing information.
Control Signal Input. Used to reset the system state registers to their
default 720p parameters. When RESET is high, the fly wheel, TRS
Detection, and ANC Detection operate normally. When RESET is low,
the flywheel, TRS Detection, and ANC Detection are reset to the
720p parameters after a rising edge on PCLK_IN. The read and
write counters are not affected.
Control Signal Output. This signal indicates the Horizontal blanking
period of the video signal. Refer to Fig. 2 for timing information of H
relative to DATA_OUT[19:10] and DATA_OUT[9:0], LUMA and
CHROMA respectively.
Control Signal Output. This signal indicates the Vertical blanking
period of the video signal. Refer to Fig. 2 for timing information of V
relative to DATA_OUT[19:10] and DATA_OUT[9:0], LUMA and
CHROMA respectively.
Control Signal Output. This signal indicates the ODD/EVEN field of
the video signal. Refer to Fig. 2 for timing information of F relative to
DATA_OUT[19:10] and DATA_OUT[9:0], LUMA and CHROMA
respectively. When locked and the input signal is of a progressive
scan nature, F stays low at all times.
No Connect. Do not connect these pins.
Control Signal Output. VD_STD[3:0] indicates which input video
standard the device has detected. The GS1510 will indicate all of
the formats in SMPTE292M (see Table 1) plus it will indicate an
unknown interlace or progressive scan format.
DESCRIPTION
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