ALLIED Vision Technologies Marlin F-201 - Manual (Page 62)

Camera interfaces
MARLIN Technical Manual V2.4.0
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• The video data for each pixel are output in either 8-bit or 10-bit format.
• Each pixel has a range of 256 or 1024 shades of gray.
• The digital value 0 is black and 255 or 1023 is white. In 16-bit mode
the data output is MSB aligned.
The following table provides a description of the video data format for the
different modes. (Source: IIDC V1.3 specification)
Field Description
data_length Number of bytes in the data field
tg Tag field
shall be set to zero
channel Isochronous channel number, as programmed in the iso_channel
field of the cam_sta_ctrl register
tCode Transaction code
shall be set to the isochronous data block packet tCode
sy Synchronization value (sync bit)
This is one single bit. It indicates the start of a new frame.
It shall be set to 0001h on the first isochronous data block of a frame,
and shall be set to zero on all other isochronous blocks
Video data payload Shall contain the digital video information
Table 26: Description of data block packet format
Figure 29: YUV422 and YUV411 format: Source: IIDC V1.3