Instruction manual
Marlin Technical ManualV.2.7.0
124
Video formats, modes and bandwidth
As an example, VGA Mono8 @ 60 fps requires four lines (640 x 4 = 2560 pixels/
byte) to transmit every 125 μs: this is a consequence of the sensor's line time of
about 30 μs, so that no data needs to be stored temporarily. It takes 120 cycles
(120 x 125 μs = 15 ms) to transmit one frame, which arrives every 16.6 ms from
the camera. Again no data need to be stored temporarily.
Thus around 64 % of the available bandwidth is used.
Format Mode Resolution 60
fps
30
fps
15
fps
7.5
fps
3.75
fps
0
0 160 x 120 YUV444
24 bit/pixel
1/2H
80p
60q
1/4H
40p
30q
1/8H
20p
15q
1 320 x 240 YUV422
16 bit/pixel
1H
320p
160q
1/2H
160p
80q
1/4H
80p
40q
1/8H
40p
20q
2 640 x 480 YUV411
12 bit/pixel
2H
1280p
480q
1H
640p
240q
1/2H
320p
120q
1/4H
160p
60q
3 640 x 480 YUV422
16 bit/pixel
2H
1280p
640q
1H
640p
320q
1/2H
320p
160q
1/4H
160p
80q
4 640 x 480 RGB
24 bit/pixel
2H
1280p
960q
1H
640p
480q
1/2H
320p
240q
1/4H
160p
120q
5 640 x 480 (Mono8)
8 bit/pixel
4H
2560p
640q
2H
1280p
320q
1H
640p
160q
1/2H
320p
80q
1/4H
160
p40q
6 640 x 480 Y (Mono16)
16 bit/pixel
2H
1280p
640q
1H
640p
320q
1/2H
320p
160q
1/4H
160p
80q
7 640 x 480 Y (Mono16)
Reserved
Table 51: Format_0