Datasheet

Functional Description
15
May 2006 SLES043A
3.15 Synchronization Signals
Nondata stream embedded syncs are provided via the following signals:
• VSYNC (vertical sync)
• FID/VLK (field indicator or vertical lock indicator)
• GPCL/VBLK (general-purpose I/O or vertical blanking indicator)
• PALI/HLK (PAL switch indicator or horizontal lock indicator)
• HSYNC (horizontal sync)
• AVID (active video indicator)
In hardware, VSYNC, FID, PALI, and VBLK are software-set and programmable to the SCLK pixel count. This
allows any possible alignment to the internal pixel count and line count. The proper settings for a 525-/625-line
video output are given as an example below.