Line 21 from 60 consecutive frames

2. CNN, HSFMT = 0, VBI_V_DEL = 0

3. Discovery, HSFMT = 0, VBI_V_DEL = 0

4. HSFMT = 1, VBI_V_DEL = 0

5. HSFMT = 0, VBI_V_DEL = 10

6. HSFMT = 0, VBI_V_DEL = 20

VBI Capture with HSCALE adjustment

HSCALE Value / Effective number of pixels in NTSC active area
50 / 744 Pixels
193 / 720 Pixels
729 / 640 Pixels
2000 / 506 Pixels
4000 / 381 Pixels
8000 / 255 Pixels

VBI Capture with Burst Gate Delay adjustment

BGDEL Value / Delay in Pixels at Clk*1 / Delay in μs
90 / 69 Pixels / 4.8190 μs
100 / 79 Pixels / 5.5175 μs
114 / 93 Pixels / 6.4952 μs
120 / 99 Pixels / 6.9143 μs
140 / 119 Pixels / 8.3111 μs