Texas Instruments TMS320C64x DSP User Manual
Page 69
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BT.656 Video Capture Mode
3-7
Video Capture Port
SPRU629
Figure 3–1. Video Capture Parameters
Capture Image
Ystart
Xstart
Ystop
Xstop
Field 1
Capture Image
Ystart
Xstart
Ystop
Xstop
Field 2
Hcount=0
Ycount=1
Ycount=1
Table 3–5 shows common digital camera standards and the number of fields
per second, number of active lines per field, and the number of active pixels
per line.
Table 3–5. Common Video Source Parameters
Video Source
Number of Active Lines
(Field 1/Field 2)
Number of Active Pixels
Field Rate (Hz)
square pixel
60Hz/525 lines
240/240
640
60
BT.601
60 Hz/525 lines
244/243
720
60
square pixel
50Hz/625 lines
288/288
768
50
BT.601
50 Hz/625 lines
288/288
720
50
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