Guppy PRO Technical Manual
V4.1.2
168
As already mentioned, the recommended limit for transferring isochronous
image data is 2000q (quadlets) per cycle or 8192 bytes (with 800 Mbit/s of
bandwidth).
The frame rates in video modes 0 to 2 are specified and set fixed by IIDC V1.31.
Format
Mode
Resolution
60 fps
30 fps 15 fps
7.5 fps 3.75 fps 1.875 fps
2
0
1280 × 960 YUV (4:2:2)
16 bit/pixel
2H
2560p
1280q
1H
1280p
640q
1/2H
640p
320q
1/4H
320p
160q
1
1280 × 960 RGB
24 bit/pixel
2H
2560p
1920q
1H
1280p
960q
1/2H
640p
480q
1/4H
320p
240q
2
1280 × 960 Y (Mono8)
8 bit/pixel
4H
5120p
1280q
2H
2560p
640q
1H
1280p
320q
1/2H
640p
160q
1/4H
320p
80q
3
1600 × 1200 YUV(4:2:2)
16 bit/pixel
5/2H
4000p
2000q
5/4H
2000p
1000q
5/8H
1000p
500q
5/16H
500p
250q
4
1600 × 1200 RGB
24 bit/pixel
5/4H
2000p
1500q
5/8H
1000p
750q
5/16
500p
375q
5
1600 × 1200 Y (Mono) 8
bit/pixel
5H
8000p
2000q
5/2H
4000p
1000q
5/4H
2000p
500q
5/8H
1000p
250q
5/16H
500p
125q
6
1280 × 960 Y (Mono16)
16 bit/pixel
2H
2560p
1280q
1H
1280p
640q
1/2H
640p
320q
1/4H
320p
160q
7
1600 × 1200Y(Mono16)
16 bit/pixel
5/2H
4000p
2000q
5/4H
2000p
1000q
5/8H
1000p
500q
5/16H
500p
250q
Table 90: Format_2
Note
•
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.
•
IEEE1394 adapter cards with PCILynx™ chipsets
(predecessor of OHCI) have a limit of 4000 bytes per
cycle.