GS2961A Datasheet, PDF (37/104 Pages) Gennum Corporation – Ancillary data extraction

Table 4-5: GS2961A Output Video Data Format Selections (Continued)
Output Data
Format
20BIT
/10BIT
Pin/Register Bit Settings
RATE_
SEL0
RATE_
SEL1
SMPTE_
BYPASS
DVB-ASI
DOUT[9:0]
DOUT[19:10]
10-bit multiplexed
LOW
HIGH
X
SD format
HIGH
LOW
Driven LOW
Luma/Chroma
10-bit data output
LOW
HIGH
X
SD format
LOW
LOW
Driven LOW
DATA
20-bit
demultiplexed 3G
format
HIGH
LOW
HIGH
HIGH
LOW
Data Stream Two* Data Stream One*
DVB-ASI format
LOW
HIGH
X
−
HIGH
DOUT19 = WORD_ERR
DOUT18 = SYNC_OUT
DOUT17 = H_OUT
DOUT16 = G_OUT
DOUT15 = F_OUT
DOUT14 = E_OUT
DOUT13 = D_OUT
DOUT12 = C_OUT
DOUT11 = B_OUT
DOUT10 = A_OUT
*In 3G Mode, the data streams can be swapped at the output through the host interface.
NOTE: When in Auto Mode, swap RATE_SEL with RATE_DET.
4.9.2 Parallel Output in SMPTE Mode
When the device is operating in SMPTE mode (SMPTE_BYPASS = HIGH and DVB_ASI =
LOW), data is output in either Multiplexed or Demultiplexed form depending on the
setting of the 20bit/10bit pin.
When operating in 20-bit mode (20bit/10bit = HIGH), the output data is demultiplexed
Luma and Chroma data for SD and HD data rates, and Data Stream 1 and Data Stream 2
for the 3G data.
When operating in 10-bit mode (20bit/10bit = LOW), the output data is multiplexed
Luma and Chroma data for SD and HD data rates, and multiplexed Data Stream 1 and
Data Stream 2 for the 3G data. In this mode, the data is presented on the DOUT[19:10]
pins, with DOUT[9:0] being forced LOW.
4.9.3 Parallel Output in DVB-ASI Mode
In DVB-ASI mode, the 20bit/10bit pin must be set LOW to configure the output parallel
bus for 10-bit operation.
DVB-ASI mode is enabled when the AUTO/MAN bit is LOW, SMPTE_BYPASS pin is LOW
and the DVB_ASI pin is HIGH.
The extracted 8-bit data is presented on DOUT[17:10] such that DOUT[17:10] = HOUT ~
AOUT, where AOUT is the least significant bit of the decoded transport stream data.
In addition, the DOUT19 and DOUT18 pins are configured as DVB-ASI status signals
WORDERR and SYNCOUT respectively.
GS2961A 3Gb/s, HD, SD SDI Integrated Receiver
Data Sheet
54385 - 2
September 2012
37 of 104