GS2961 Datasheet, PDF (59/104 Pages) Gennum Corporation – 3Gb/s, HD, SD SDI Receiver, with Integrated Adaptive Cable Equalizer complete with SMPTE Video Processing

Table 4-11: Supported Video Standard Codes
SMPTE Active Video Area
Standard
RATE_
DET[1]
HD/3G
RATE_
DET[0]
SD/HD
Lines
per Field
Active
Lines per
Field
Words
per
Active
Line
Words VD_STD
per Line
[5:0]
ITU-R
1440x576/50 (2:1) Or
x
BT.656 dual link progressive)
(SD)
625-line generic
x
1
625
1
625
−
1440
1728
18h
−
−
1728
1Ah
Unknown
HD
SD/HD = 0
0
0
−
−
−
−
1Dh
Unknown
SD
SD/HD = 1
x
1
−
−
−
−
1Eh
Unknown
3G
SD/HD = 0
1
0
−
−
−
−
3Ch
Reserved
−
−
−
−
−
−
1Fh
Notes:
1. The Line Numbers in brackets refer to version zero SMPTE 352M packet locations, if they are different from version 1.
2. The part may provide full or limited functionality with standards that are not included in this table. Please consult a
Gennum technical representative.
NOTE: The part may provide full or limited functionality with standards that are not
included in this table. Please consult a Gennum technical representative.
By default (after power up or after systems reset), the four RASTER_STRUCTURE,
VD_STD, STD_LOCK and INT/PROG fields are set to zero. These fields are also cleared
when the SMPTE_BYPASS pin is LOW.
4.14 Data Format Detection & Indication
In addition to detecting the video standard, the GS2961 detects the data format, i.e. SDTI,
SDI, TDM data (SMPTE 346M), etc.
This information is represented by bits in the DATA_FORMAT_DSX register accessible
through the host interface.
Data format detection is only carried out when the LOCKED signal is HIGH.
By default (at power up or after system reset), the DATA_FORMAT_DSX register is set to
Fh (undefined). This register is also set as undefined when the LOCKED signal is LOW
and/or the SMPTE_BYPASS pin is LOW.
GS2961 3Gb/s, HD, SD SDI Receiver, with Integrated
Adaptive Cable Equalizer
Data Sheet
48004 - 2
November 2009
59 of 104