BT.656 and Y/C Mode Field and Frame Operation
3-21Video Capture PortSPRU629
Figure 3–8. VCOUNT Operation Example (EXC = 0)
VF
5
11
Line
VRST=0
10 525
1
262
VCOUNT
Field 1 Blanking
Field 2 Blanking
Field 1 Active
Field 2 Active
Field
1
FINV=0 FINV=1
Field
2
11
11
01
01
4
3
2
1
2
3
4
5
19
20
21
01
00
00
19
20
21
26300
26401
26501
26611
26711
28211
28310
28410
52410
52510
111
263
1
2
3
4
19
20
21
261
262
1
VRST=1
VCOUNT
Field
FINV=0 FINV=1
Field
244
243 2
245
246
247
248
1
2
1
1
2
2
1
1
2
2
1
262
1
2
2
1
1
2
244
245
246
247
248
263
1
2
242
243
244
12
21
21