EVAL-ADV7314EB Analog Devices Inc, EVAL-ADV7314EB Datasheet - Page 62

• Manufacturer Part Number: EVAL-ADV7314EB
• Manufacturer: Analog Devices Inc

Specifications of EVAL-ADV7314EB

• Lead Free Status / Rohs Status: Not Compliant

ADV7314
APPENDIX 2—SD WIDE SCREEN SIGNALING
[Subaddress 59h, 5Ah, 5Bh]
The ADV7314 supports wide screen signaling (WSS) conforming
to the standard. WSS data is transmitted on Line 23. WSS data
can be transmitted only when the ADV7314 is configured in PAL
mode. The WSS data is 14 bits long, and the function of each of
these bits is as shown in Table XIX. The WSS data is preceded
Bit
Bit 0–Bit 2
Bit 3
B0, B1, B2, B3
0
1
0
1
0
1
0
1
B4
0
1
B5
0
1
0
0
1
1
0
0
1
1
500mV
0
0
0
0
1
1
1
1
1
0
0
1
0
1
1
0
Description
Aspect Ratio/Format/Position Bits
IS Odd Parity Check of Bit 0–Bit 2
Aspect Ratio Format
4:3
14:9
14:9
16:9
16:9
>16:9
14:9
16:9
Camera Mode
Film Mode
Standard Coding
Motion Adaptive Color Plus
11.0 s
SEQUENCE
Full Format
Letterbox
Letterbox
Letterbox
Letterbox
Letterbox
Full Format
N/A
RUN-IN
START
CODE
Figure 65. WSS Waveform Diagram
Position
Not applicable
Center
Top
Center
Top
Center
Center
N/A
Table XIX. Function of WSS Bits
38.4 s
W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 W10 W11 W12 W13
42.5 s
–62–
Bit
B6
0
1
B7
B9
0
1
0
1
B11
0
1
B12
B13
by a run-in sequence and a start code (see Figure 65). If SD
WSS [Address 59h, Bit 7] is set to a Logic 1, it enables the WSS
data to be transmitted on Line 23. The latter portion of Line 23
(42.5 ms 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
61h, Bit 7.
0
0
1
1
B10
Description
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
ACTIVE
VIDEO
REV. 0