EVAL-ADV7320EB AD [Analog Devices], EVAL-ADV7320EB Datasheet - Page 68

• Manufacturer Part Number: EVAL-ADV7320EB
• Description: Multiformat 216 MHz Video Encoder with Six NSV 12-Bit DACs
• Manufacturer: AD [Analog Devices]

ADV7320/ADV7321
APPENDIX 2—SD WIDE SCREEN SIGNALING
[Subaddresses 0x59, 0x5A, 0x5B]
The ADV7320/ADV7321 support wide screen signaling (WSS)
conforming to the ETS 300 294 standard. WSS data is
transmitted on Line 23. WSS data can be transmitted only when
the device is configured in PAL mode. The WSS data is 14 bits
long, and the function of each of these bits is shown in Table 40.
Table 40. Function of WSS Bits
Bit
Bit 0 to Bit 2
Bit 3
B0
0
1
0
1
0
1
0
1
1
B4
0
1
B5
0
1
B6
0
1
B7
B9
0
1
0
1
B11
0
1
B12
B13
500mV
B1
0
0
1
1
0
0
1
1
1
11.0µs
B2
0
0
0
0
1
1
1
1
1
B10
0
0
1
1
SEQUENCE
RUN-IN
B3
1
0
0
1
0
1
1
0
0
START
CODE
Description
Aspect Ratio/Format/Position
Odd Parity Check of Bit 0 to Bit 2
Aspect Ratio
4:3
14:9
14:9
16:9
16:9
>16:9
14:9
16:9
16:9
Camera Mode
Film Mode
Standard Coding
Motion Adaptive Color Plus
No Helper
Modulated Helper
Reserved
No Open Subtitles
Subtitles in Active Image Area
Subtitles out of Active Image Area
Reserved
No Surround Sound Information
Surround Sound Mode
Reserved
Reserved
38.4µs
42.5µs
W0
W1
Figure 97. WSS Waveform Diagram
W2
Rev. 0 | Page 68 of 88
W3
W4
W5
The WSS data is preceded by a run-in sequence and a start
code; see Figure 97. If SD WSS [Address 0x59, Bit 7] is set to
Logic 1, it enables the WSS data to be transmitted on Line 23.
The latter portion of Line 23 (42.5 s from the falling edge of
HSYNC ) is available for the insertion of video. It is possible to
blank the WSS portion of Line 23 with Subaddress 0x61, Bit 7.
W6
W7
W8
W9 W10 W11 W12 W13
Format
Full Format
Letterbox
Letterbox
Letterbox
Letterbox
Letterbox
Full Format
N/A
ACTIVE
VIDEO
Position
N/A
Center
Top
Center
Top
Center
Center
N/A