Datasheet

Composite
Video
525
VSYNC
GPCL/VBLK
FID
1 2 3 4 5 6 7 8 9 10 11 20 21 22
525 LINE
262 263 264 265 266 267 268 269 270 271 272 273 282 283 284
310 311 312 313 314 315 316 317 318 319 320 333 334 335 336
622 623 624 625 1 2 3 4 5 6 7 20 21 22 23
625 LINE
Composite
Video
VSYNC
GPCL/VBLK
FID
Composite
Video
VSYNC
GPCL/VBLK
FID
Composite
Video
VSYNC
GPCL/VBLK
FID
↔
VBLK Start
↔
VBLK Stop
↔
VBLK Start
↔
VBLK Stop
↔
VBLK Start
↔
VBLK Stop
↔
VBLK Start
↔
VBLK Stop
Line numbering conforms to ITU-R BT.470.
HSYN
AVID
AVID STOP
AVID START
HSYN START
TVP5154A
www.ti.com SLES214C–DECEMBER 2007–REVISED SEPTEMBER 2010
Figure 3-4. 8-Bit 4:2:2, Timing With 2× Pixel Clock (CLK) Reference
NOTE: AVID rising edge occurs four CLK cycles early when in ITU-R BT.656 output mode.
Figure 3-5. Horizontal Synchronization Signals
3.13 Active Video (AVID) Cropping
AVID cropping provides a means to decrease the amount of video data output. This is accomplished by
horizontally blanking a number of AVID pulses and by vertically blanking a number of lines per frame. The
horizontal AVID cropping is controlled using registers 11h and 12h for start pixels MSB and LSB,
respectively.
Copyright © 2007–2010, Texas Instruments Incorporated Functional Description 15
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