Datasheet
NTSC 601 1436
PAL 601 1436
ITU 656
Datastream
Cb
359
1437
1437
Y
718
1438
1438
Cr
359
1439
1439
Y
719
1440
1440
FF
1441
1441
00
1455
1459
10
1456
1460
80
HSYNC
AVID
ITU-R BT.656 Timing
1583
1587
10
1584
1588
80
1711
1723
10
1712
1724
FF
1713
1725
00
1714
1726
00
1715
1727
XX
0
0
Cb
0
1
1
Y
0
2
2
Cr
0
3
3
Y
1
↔
AVID Stop
↔
AVID Start
↔
HSYNC Start
SECAM
1436 1437 1438 1439 1440
1441
1479 1480 1607 1608 1719 1720
1721 1722
1723
17
24
17
25
17
26
17
27
…
…
…
…
…
…
TVP5150AM1
www.ti.com
SLES209E–NOVEMBER 2007– REVISED OCTOBER 2011
A. AVID rising edge occurs four SCLK cycles early when in the ITU-R BT.656 output mode.
Figure 3-6. Horizontal Synchronization Signals
3.13 Active Video (AVID) Cropping
The AVID output signal provides a means to qualify and crop active video both horizontally and vertically.
The horizontal start and stop position of the AVID signal is controlled using registers 11h-12h and
13h-14h, respectively. These registers also control the horizontal position of the embedded sync SAV/EAV
codes.
AVID vertical timing is controlled by the VBLK start and stop registers at addresses 18h and 19h. These
VBLK registers have no effect on the embedded vertical sync code timing. Figure 3-7 shows an AVID
application.
NOTE
The above settings alter AVID output timing, but the video output data is not forced to black
level outside of the AVID interval.
Copyright © 2007–2011, Texas Instruments Incorporated Functional Description 17
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