ALLIED Vision Technologies Marlin F-201 - Manual (Page 155)

Video formats, modes and bandwidth
MARLIN Technical Manual V2.4.0
155
As already mentioned, the recommended limit for transferring isochronous
image data is 1000q (quadlets) per cycle or 4096 bytes (with 400 Mbit/s of
bandwidth).
The third table shows that a MF-145B2 @ 7.5 fps has to send 1280 pixels or
1 line of video per cycle. The camera thus uses 32 % of available bandwidth.
This allows up to three cameras with these settings to be operated indepen-
dently on the same bus.
Format Mode Resolution 60
fps 30
fps 15
fps 7.5
fps 3.75
fps 1.875
fps
2
0 1280 x 960 YUV422
16 bit/pixel
1H
1280p
640q 1/2H
640p
320q 1/4H
320p
160q
1 1280 x 960 RGB
24 bit/pixel
1H
1280p
960q 1/2H
640p
480q 1/4H
320p
240q
2 1280 x 960 Y (Mono8)
8 bit/pixel
2H
2560p
640q 1H
1280p
320q 1/2H
640p
160q 1/4H
320p
80q
3 1600 x 1200 YUV422
16 bit/pixel
5/4H
2000p
1000q 5/8H
1000p
500q 5/16H
500p
250q
4 1600 x 1200 RGB
24 bit/pixel
5/8H
1000p
750q 5/16
500p
375q
5 1600 x 1200 Y (Mono8)
8 bit/pixel
5/2H
4000p
1000q 5/4H
2000p
500q 5/8H
1000p
250q 5/16H
500p
125q
6 1280 x 960 Y (Mono16)
16 bit/pixel
1H
1280p
640q 1/2H
640p
320q 1/4H
320p
160q
7 1600 x 1200 Y (Mono16)
16 bit/pixel
5/4H
2000p
1000q 5/8H
1000p
500q 5/16H
500p
250q
Table 69: Format_2
Note
L
• If the cameras are operated with an external trigger the
maximum trigger frequency may not exceed the highest
continuous frame rate, so preventing frames from being
dropped or corrupted.
• IEEE 1394 adapter cards with PCILynx™ chipsets have a
limit of 4000 bytes per cycle.