Datasheet

VSYNC
HSYNC
Active Video Area
AVID Cropped Area
AVID
Stop
AVID
Start
VBLK
Start
VBLK
Stop
TVP5154A
SLES214C–DECEMBER 2007–REVISED SEPTEMBER 2010 www.ti.com
Registers 13h and 14h provide access to stop pixels MSB and LSB, respectively. The vertical AVID
cropping is controlled using the vertical blanking (VBLK) start and stop registers at addresses 18h and
19h. Figure 3-6 shows an AVID application.
AVID cropping can be independently controlled for scaled (registers 25h, 26h, 29h, and 2Ah) and
unscaled (registers 11h thru 14h) data streams. AVID start and stop must be changed in multiples of two
pixels to ensure correct UV alignment.
Additionally, AVID start and stop can be configured to include the SAV- and EAV-embedded sync signals
or to exclude them, and to either include or exclude ITU656 ancillary data.
NOTE
The above settings alter AVID output timing, but the video output data is not forced to black
level outside of the AVID interval.
Figure 3-6. AVID Application
16 Functional Description Copyright © 2007–2010, Texas Instruments Incorporated
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