Instruction manual

Marlin Technical ManualV.2.7.0

Camera interfaces

• 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 differ-

ent 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 25: Description of data block packet format

Figure 27: YUV422 and YUV411 format: Source: IIDC V1.3